Updated on 2022/10/01

写真a

 
MOROIZUMI Toshitsugu
 
Organization
Faculty of Environmental and Life Science Professor
Position
Professor
External link

Degree

  • 博士(農学) ( 1997.1   京都大学 )

  • 農学修士 ( 1990.3   京都大学 )

Research Interests

  • 土壌水文学

  • 地水環境制御学

  • 農業農村工学

  • Drainage and Reclamation Engineering and Rural Planning

  • Irrigation

  • 潅漑排水学

Research Areas

  • Natural Science / Atmospheric and hydrospheric sciences

  • Environmental Science/Agriculture Science / Agricultural environmental engineering and agricultural information engineering

  • Environmental Science/Agriculture Science / Rural environmental engineering and planning

Education

  • Kyoto University   大学院農学研究科   農業工学専攻

    1988.4 - 1990.3

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    Country: Japan

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  • Kyoto University   農学部   農業工学科

    1981.4 - 1986.3

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    Country: Japan

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Research History

  • Okayama University   Faculty of Environmental Science and Technology

    2015.4 - 2019.3

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    Country:Japan

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  • Okayama University   Graduate School of Environmental and life Science   Professor

    2010.7

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    Country:Japan

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  • Okayama University   Faculty of Environmental Science and Technology Department of Environmental Management Engineering

    1999.4 - 2010.6

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    Country:Japan

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  • University of California, RIverside   U.S. Salinity Laboratory, USDA-ARS   Visiting Scientist

    1998.4 - 1998.9

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  • Kitasato University   獣医畜産学部畜産土木工学科   Research Assistant

    1990.4 - 1999.3

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    Country:Japan

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  • Kyoto University   Faculty of Agriculture   Trainee

    1987.11 - 1988.3

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    Country:Japan

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  • Aoki Construction Co., Ltd.   Technical Staff

    1986.4 - 1987.6

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    Country:Japan

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Professional Memberships

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Committee Memberships

  • 土壌物理学会   副学会長  

    2021.4 - 2023.3   

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    Committee type:Academic society

    副学会長

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  • 公益社団法人農業農村工学会   中国四国支部幹事  

    2020.6 - 2022.5   

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    Committee type:Academic society

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  • 公益社団法人農業農村工学会   水文・水環境部会事務局員  

    2020.6 - 2022.5   

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  • 西日本高速道路株式会社中国支社   入札監視委員会委員  

    2020.4   

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    Committee type:Other

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  • 独立行政法人水資源機構   香川用水施設緊急対策事業に係わる事前評価(農業用水)委員会委員(委員長)  

    2019.5 - 2020.3   

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    Committee type:Other

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  • 国土交通省中国四国整備局   芦田川水系河川整備アドバイザー会議委員  

    2019.4   

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    Committee type:Other

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  • 一般社団法人 水文・水資源学会   国際誌編集委員会副委員長  

    2018.9   

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    Committee type:Academic society

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  • 一般社団法人 水文・水資源学会   財務委員  

    2018.9 - 2022.8   

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    Committee type:Academic society

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  • 中国四国農政局   企画競争案件に関する有識者委員会委員長  

    2016.4   

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    Committee type:Other

    委員長

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  • 岡山県   森林審議会 委員  

    2016.4   

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    Committee type:Municipal

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  • 中国四国農政局   補助事業再評価技術検討会委員長  

    2015.4   

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  • 西日本高速道路(株)中国支社   三次高速道路事務所管内沿道環境対策委員会委員  

    2012.12 - 2013.6   

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    Committee type:Other

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  • 農林水産省中国四国農政局   業務における企画競争案件に関する有識者委員会(第三者委員会委員)  

    2009.6 - 2016.3   

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    Committee type:Other

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  • 土壌物理学会   学会賞選考委員会委員  

    2009 - 2012   

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    Committee type:Academic society

    土壌物理学会

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  • 土壌物理学会   編集委員会 編集委員長  

    2009 - 2010   

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    Committee type:Academic society

    土壌物理学会

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  • 岡山市環境局環境保全課地球温暖化対策室   岡山市環境保全審査会専門委員  

    2008.7 - 2010.7   

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    Committee type:Municipal

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  • (社)農業農村工学会(旧 農業土木学会)   中国四国支部幹事  

    2008 - 2010   

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    Committee type:Academic society

    (社)農業農村工学会(旧 農業土木学会)

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  • 土壌物理学会   評議員  

    2007 - 2010   

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    Committee type:Academic society

    土壌物理学会

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  • (社)農業農村工学会(旧 農業土木学会)   土壌物理研究部会幹事  

    2007 - 2008   

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    Committee type:Academic society

    (社)農業農村工学会(旧 農業土木学会)

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  • (社)農業農村工学会(旧 農業土木学会)   中国四国支部支部賞選考委員会委員  

    2007   

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    Committee type:Academic society

    (社)農業農村工学会(旧 農業土木学会)

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  •   平成19年度農業気象学会中国四国支部大会 実行委員会 委員  

    2007   

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  • 水文・水資源学会   水文・水資源学会2006年度総会・研究発表会(岡山市) 実行委員会委員  

    2005 - 2006   

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    Committee type:Academic society

    水文・水資源学会2006年度総会・研究発表会(岡山市)実行委員会委員

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  • 土壌物理学会   事務局会計幹事  

    2003 - 2004   

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    Committee type:Academic society

    土壌物理学会

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  • (社)農業農村工学会(旧 農業土木学会)   PWE日本委員会委員  

    2002 - 2005   

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    Committee type:Academic society

    (社)農業農村工学会(旧 農業土木学会)

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  • IS-Okayama2003-International Symposium on Groundwater Problems related to Geo-Environment,岡山市   「IS-Okayama2003実行委員会」委員  

    2002 - 2003   

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    Committee type:Academic society

    IS-Okayama2003-International Symposium on Groundwater Problems related to Geo-Environment,岡山市

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Papers

  • Stochastic evaporation in Okayama city and its estimation formula Reviewed International journal

    MOROIZUMI Toshitsugu, SOMURA Hiroaki

    Applied Hydrology   ( 34 )   1 - 7   2022.3

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  • Evaluation of drought features in the Dakbla watershed, Central Highlands of Vietnam Reviewed International coauthorship International journal

    Vo Ngoc Quynh Tram, Hiroaki Somura, Toshitsugu Moroizumi

    Hydrological Research Letters   15 ( 3 )   77 - 83   2021.9

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    Authorship:Last author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Japan Society of Hydrology and Water Resources  

    The drought impacts in the Dakbla watershed were assessed based on a combination of hydrological modeling and drought indices. Three drought indices, the Standardized Precipitation Index (SPI), Standardized Soil Moisture Index (SSI), and Streamflow Drought Index (SDI) were utilized to evaluate the drought features of meteo-hydrology and agriculture. The results indicated that these indices are well adapted to the local conditions, especially the 12-month time scale. Evaluations of drought features on the watershed scale could provide more specific information regarding drought risk than regional-scale/district-level assessments, because a watershed is a hydrologically fundamental unit to consider water resources management. Additionally, evaluations of drought impacts using the SSI showed longer and higher trends than those using the SPI and SDI in terms of drought duration and frequency. Considering the spatial distribution of drought frequency, the areas predominated by agricultural land in the target watershed had higher drought risk. Thus, assessment of agricultural droughts along with meteo-hydrological droughts is extremely important to support realistic local drought management strategies by considering water availability, water balance, and soil characteristics, especially in specific agricultural areas.

    DOI: 10.3178/hrl.15.77

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  • Estimation of actual evapotranspiration in 3 river basins in Okayama prefecture - Comparison of Morton method and modified Brutsaert & Stricker method -

    Toshitsugu MOROIZUMI, Takeshi MIURA

    Jornal of The Faculty of Environmental Science and Technology   26 ( 1 )   1 - 5   2021.3

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  • Mitigation Effect of Thermal Environment on the Asphalt by Sprayed Water

    Toshitsugu MOROIZUM, Naoya ITO, Takeshi MIURA

    Jornal of The Faculty of Environmental Science and Technology   26 ( 1 )   7 - 10   2021.3

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  • The Impacts of Land-Use Input Conditions on Flow and Sediment Discharge in the Dakbla Watershed, Central Highlands of Vietnam Reviewed International coauthorship International journal

    Vo Ngoc Quynh Tram, Hiroaki Somura, Toshitsugu Moroizumi

    Water   13 ( 5 )   627 - 627   2021.2

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    Authorship:Last author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:MDPI AG  

    The main objective of this study was to evaluate various land-use input conditions in terms of the performance improvement found in consequent flow and sediment simulations. The soil and water assessment tool (SWAT) was applied to the Dakbla watershed from 2000 to 2018. After the calibration and validation processes, dissimilar effects between the input conditions on the flow and sediment simulations were confirmed. It was recognized that the impact of the land use on the sediment simulation was more sensitive than with the flow simulation. Additionally, through monthly evaluation, the effects against the flow and sediment in the rainy season were larger than those in the dry season, especially for sediment simulation in the last three months from October to December. Changing land-use conditions could improve flow and sediment simulation performance better than the performance found with static land-use conditions. Updated land-use inputs should be considered in simulations if the given land-use condition changes in a relatively short period because of frequent land-use policy changes by a local government.

    DOI: 10.3390/w13050627

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  • 塩化ナトリウムの地下への浸透による水質変化に関する研究 Reviewed

    佐々木薫, 秦 二朗, 柳迫新吾, 諸泉利嗣

    地盤と建設   37 ( 1 )   131-137   2019.12

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  • Report on simple accelerated corrosion tests on the corrosion of copper by the chloride ions contained in groundwater Reviewed

    Kaoru SASAKI, Jiro HADA, Toshitsugu MOROIZUMI, Makoto NISHIGAKI

    Journal of Groundwater Hydrology   59 ( 4 )   355 - 368   2017.11

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:Japanese Association of Groundwater Hydrology  

    DOI: 10.5917/jagh.59.355

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  • Effects of Road De-icing Agents on Farmland Soil and Agricultural Water Reviewed

    SASAKI Kaoru, HADA Jiro, MOROIZUMI Toshitsugu

    IDRE Journal   85 ( 1 )   Ⅱ_45 - Ⅱ_52   2017.6

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    DOI: 10.11408/jsidre.85.II_45

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  • Method for predicting minimum air temperature in the next morning using local meteorological observation data - Improvement on minimum air temperature forecasting system utilizing the Internet -

    22 ( 1 )   55 - 59   2017.3

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  • 凍結防止剤の飛散による近接農地における塩化物イオン濃度の簡易推定手法 Reviewed

    佐々木薫, 秦 二朗, 諸泉利嗣

    地盤と建設   34 ( 1 )   127 - 132   2016.12

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  • 現場気象観測データを用いた翌朝の最低気温予測 ―傾斜地内任意地点の最低気温予測方法の検討― Reviewed

    上田 悠生, 三島拓也, 三浦健志, 諸泉 利嗣

    中国・四国の農業気象   29   2 - 8   2016

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  • Investigation and future prediction on the infiltration of de-icing agent into groundwater based on advection-dispersion analysis Reviewed

    HADA Jiro, SASAKI Kaoru, MOROIZUMI Toshitsugu, NISHIGAKI Makoto

    Japanese Geotechnical Journal   11 ( 3 )   269 - 282   2016

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    A 2-dimensional advection-dispersion analysis was carried out to examine the infiltration path and area of de-icing agent into groundwater along an expressway which has been used more than 30 years in a hilly and mountainous area. The results were as follows: Analytic values approximately agreed with observed values. The de-icing agent infiltrated and moved about 300 m distance from the expressway to the river for 15 years, and the salinity of de-icing agent at the observation points rose gradually with decreasing its rising rate. If the spraying of de-icing agent was stopped, it was predicted that it took about 30 years for the water quality of groundwater at existing wells to return to the original values before spraying it. Furthermore, it was found, as an infiltration mechanisn of de-icing agent, the shattered zone with high permeability greatly affected the infiltration path and area of de-icing agent.

    DOI: 10.3208/jgs.11.269

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  • 中山間地域の道路周辺における地質と地下水水質の関係について Reviewed

    秦 二朗, 佐々木薫, 諸泉利嗣

    地盤と建設   34 ( 1 )   37 - 44   2016

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  • Quantification of the amounts of infiltration, river runoff, and scattering of the de-icing agent sprinkled on the way Reviewed

    Jiro HADA, Kaoru SASAKI, Toshitsugu MOROIZUMI

    Japanese Geotechnical Journal   10 ( 4 )   461 - 471   2015.12

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    Authorship:Last author   Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:The Japanese Geotechnical Society  

    DOI: 10.3208/jgs.10.461

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  • Applicability of three complementary relationship models for estimating actual evapotranspiration in urban area Reviewed International journal

    Takeshi Nakamichi, Toshitsugu Moroizumi

    JOURNAL OF HYDROLOGY AND HYDROMECHANICS   63 ( 2 )   117 - 123   2015.6

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    Authorship:Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:VEDA, SLOVAK ACAD SCIENCES  

    The characteristics of evapotranspiration estimated by the complementary relationship actual evapotranspiration (CRAE), the advection-aridity (AA), and the modified advection-aridity (MAA) models were investigated in six pairs of rural and urban areas of Japan in order to evaluate the applicability of the three models the urban area. The main results are as follows: 1) The MAA model could apply to estimating the actual evapotranspiration in the urban area. 2) The actual evapotranspirations estimated by the three models were much less in the urban area than in the rural. 3) The difference among the estimated values of evapotranspiration in the urban areas was significant, depending on each model, while the difference among the values in the rural areas was relatively small. 4) All three models underestimated the actual evapotranspiration in the urban areas from humid surfaces where water and green spaces exist. 5) Each model could take the effect of urbanization into account.

    DOI: 10.1515/johh-2015-0011

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  • Building of minimum air temperature forecast system using the Internet -Design of the forecast website-

    Takuya MISHIMA, Takeshi MIURA, Toshitsugu MOROIZUMI

    20 ( 1 )   35 - 40   2015.3

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  • Prediction of Soil Water Content Using Multiple Regression Model with Time Series Data Reviewed

    MOROIZUMI Toshitsugu, KUBOTA Shusaku

    Journal of the Agricultural Engineering Society, Japan   83 ( 5 )   47 - 52   2014.2

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    Authorship:Lead author   Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:The Japanese Society of Irrigation, Drainage and Rural Engineering  

    A multiple regression model was used to predict the averaged soil water content in root zone instead of solving a Richards' equation numerically, which of applicability was examined. (1) The soil water content of the depth of 5cm (model I) or (2) the effective rainfall and evapotranspiration (model II) were used as the explanatory variables of the multiple regression model. As a result, it became clear that both models could predict the averaged soil water content in the root zone. In addition, it was necessary to convert the original data to its difference and to apply them to the multiple regression model because it was judged that the decrease of the autocorrelation coefficient for the time series data of soil water contents was slow, and therefore, the explanatory variables were correlated each other.

    DOI: 10.11408/jsidre.82.47

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    Other Link: https://jlc.jst.go.jp/DN/JLC/20005785412?from=CiNii

  • 補完関係式を用いた実蒸発散量推定式の改良

    中道丈史, 諸泉利嗣, 三浦健志

    岡山大学環境理工学部研究報告   16 ( 1 )   35 - 39   2011.3

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    Authorship:Corresponding author   Language:Japanese  

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  • The characteristics of groundwater level and water quality and the classification of monitoring well in waste landfill Reviewed

    MOROIZUMI Toshitsugu

    Suimontishitukenkyukaikaisi   53 ( 1 )   73 - 79   2011.2

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    Authorship:Lead author   Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:Japanese Association of Groundwater Hydrology  

    DOI: 10.5917/jagh.53.73

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    Other Link: https://jlc.jst.go.jp/DN/JALC/00367176448?from=CiNii

  • 地域定数を用いた温度法による可能蒸発量の推定精度向上 Reviewed

    諸泉利嗣, 小村拓也, 三浦健志

    農業農村工学会論文集   78 ( 5 )   137 - 143   2010.10

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    DOI: 10.11408/jsidre.78.429

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  • 2004年インド洋津波による農村地帯の農業被害実態と復旧対策 Reviewed

    赤江剛夫, 濱田浩正, 諸泉利嗣, 石黒宗秀, 守田秀則, 中矢哲夫

    水土の知(農業農村工学会誌)   78 ( 9 )   775 - 778   2010.9

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  • Preliminary study on the measurement for water content and electric conductivity in soils using time domain reflectometry Reviewed

    Environmental research & control   ( 31 )   32 - 37   2009.12

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    Authorship:Lead author   Language:Japanese   Publishing type:Research paper (bulletin of university, research institution)  

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    Other Link: http://eprints.lib.okayama-u.ac.jp/42678

  • Improvement for the Estimations of Potential Evaporation Using Makkink Equation Reviewed

    MOROIZUMI Toshitsugu, KOMURA Takuya, MIURA Takeshi

    JOURNAL OF JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES   22 ( 6 )   479 - 483   2009.11

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    Authorship:Lead author   Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:THE JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES  

    The Makkink equation can estimate potential evaporation using only air temperature and sunshine duration. Therefore, it is convenient for use in developing countries where there is an insufficient amount of meteorological data. The two coefficients employed in the equation were determined to fit the estimations of the Penman equation, and the accuracy of the estimations by the Makkink equation were investigated. The results showed that the accuracy was best when the estimations were made with the coefficients which depend on each locality, and that the accuracy was further improved with the coefficients which depend on each climatological zone. The relationship between the two coefficients showed a negative correlation, which was addressed in a previous study.

    DOI: 10.3178/jjshwr.22.479

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    Other Link: https://jlc.jst.go.jp/DN/JALC/00340728022?from=CiNii

  • 国内主要都市における水収支構造と水利用ストレスの評価 Reviewed

    渡部春奈, 村上道夫, 小村拓也, 諸泉利嗣, 古米弘明

    用水と排水   52 ( 2 )   137 - 148   2009.2

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  • Soil water content and water balance in rainfed fields in Northeast Thailand Reviewed International coauthorship International journal

    Toshitsugu Moroizumi, Hiromasa Hamada, Somsak Sukchan, Masahiro Ikemoto

    AGRICULTURAL WATER MANAGEMENT   96 ( 1 )   160 - 166   2009.1

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:ELSEVIER SCIENCE BV  

    Northeast Thailand has a semi-humid tropical climate which is characterized by dry and rainy seasons. In order to stabilize crop production, it may be necessary to develop new water resources, such as soil moisture and groundwater, instead of rainfed resources. This is because rainfed agriculture has already been unsuccessfully tried in many areas of this region. In this study, we investigate the soil water content in rainfed fields in Khon Kaen in Northeast Thailand, where rice and sugarcane were planted, over a 1-year period that contained both dry and rainy seasons, and estimate the actual evapotranspiration (ET.) using micrometeorological data. In addition, we assess the water balance from the results of the soil water content investigation and the actual evapotranspiration. Although the soil water content at depths above 0.6 m in both the lower and the sloping fields gradually decreased during the dry season, the soil water content at a depth of 1.0 m. was under almost constant wet conditions. Two-dimensional profiles of the soil water content demonstrated that at the end of the dry season, the soil layers below a depth of 0.4 m. showed a soil water content of more than 0.10-0.15 m(3) m(-3), thus suggesting that water was supplied to the sugarcane from those layers. The range in ET, rates was almost the same as that in the previous study. The average ETa rates were 3.7 mm, d(-1) for the lower field and 4.2 mm d(-1) for the sloping field. In the dry season, an upward water flow of 373 mm (equivalent to a flux of 1.9 mm. d(1)) was estimated from outside the profile. The source of this upward water flow was the sandy clay (SC) layer below a depth of 1 m. It was this soil water supply from the SC layer that allowed the sugarcane to grow without irrigation. (C) 2008 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.agwat.2008.07.007

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  • Amplitude Domain Reflectometry法による不飽和砂地盤中のNAPL含有量と誘電率に関する基礎的研究 Reviewed

    諸泉利嗣, 佐々木裕美, 三浦健志

    環境制御   30 ( 30 )   27 - 32   2008.12

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    Subsurface contamination by non-aqueous phase liquid (NAPL) has become a serious environmental issue. Therefore, it is necessary to estimate the NAPL content (θNAPL) in unsaturated soil to detect and monitor the NAPL contaminations in soil and groundwater. The objective of this study was to investigate the relationship between θNAPL and permittivity (K) in unsaturated sandy soil as a fundamental study to estimate the θNAPL. An ADR (Amplitude Domain Reflectometry) method was used to measure the K in the soil including the NAPL which was a castor oil as light NAPL or a HFE-7100 as dense NAPL. The experimental study indicated the linear relation between θNAPL and K in unsaturated soil with soil-NAPL-air. Using this relationship, we can estimate the θNAPL. On the other hand, although we obtained the relationship between θNAPL, θw and (root) K in unsaturated soil with soil-NAPL-water-air, it was not possible to estimate the θNAPL using this relationship.

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  • Estimating the Nonaqueous-Phase Liquid Content in Saturated Sandy Soil Using Amplitude Domain Reflectometry Reviewed International journal

    Toshitsugu Moroizumi, Yumi Sasaki

    SOIL SCIENCE SOCIETY OF AMERICA JOURNAL   72 ( 6 )   1520 - 1526   2008.11

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    Groundwater contamination by nonaqueous-phase liquids (NAPLs) has become a serious environmental issue. Therefore, it is necessary to estimate the NAPL content (theta(NAPL)) in saturated soil to detect and monitor the NAPL contamination in groundwater. The objective of this study was to investigate three estimation methods for the theta(NAPL) in saturated sandy soil, namely, the noncalibration method (NCM), the permittivity regression method (PRM), and the best-fit alpha method (BF alpha M). These methods utilize the permittivity (K) measured by amplitude domain reflectometry (ADR) and two dielectric mixing models: a theoretical Maxell-de Loor (MD) model and an empirical a model. The NCM applies the measured K to the models directly. The PRM applies the measured K to the models indirectly using the regression equation between the measured and estimated K The RMSEs of the NCM for the alpha model were 0.038 m(3) m(-3) for light NAPL (LNAPL) and 0.015 m(3) m(-3) for dense NAPL (DNAPL) when the constant alpha value was set at 0.5. The RMSEs of the MD model, however, were 0.090 m(3) m(-3) for LNAPL and 0.070 m(3) m(-3) for DNAPL. Using the PRM, the RMSEs of the MID model became much better than those of the NCM. The RMSEs for theta(NAPL) estimated by the BF alpha M were 0.007 m(3) m(-3) for LNAPL and 0.018 m(3) m(-3) for DNAPL. These results demonstrate that theta(NAPL) was estimated easily and with sufficient accuracy with the alpha model and the PRM.

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  • In Situ Calibration of a Profile Probe and Soil Water Content Measurements : Case Study of Rain-fed Land in Northeast Thailand Reviewed International coauthorship

    MOROIZUMI Toshitsugu, IKEMOTO Masahiro, HAMADA Hiromasa, SUKCHAN Somsak

    JOURNAL OF JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES   21 ( 5 )   361 - 367   2008.9

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    The soil water content was measured using a Profile Probe PR1 soil moisture sensor (Delta-T Devices, Ltd.) to develop water resources in rain-fed land with paddies and sloping fields in Northeast Thailand. The PR1 sensor uses a kind of amplitude domain reflectometry (ADR) as its measuring technique. In order to determine the soil water content with the PR1, it is necessary to establish specific calibration equations between the output voltage of the PR1 and the measured values of the soil water content. The objectives of this study were to present an in situ calibration of the PR1 and to measure the soil water content in the above-mentioned rain-fed land. The in situ calibration makes it possible to measure the water content of undisturbed soil samples and does not require the adjustment of the soil water content. The calibration equations resulted in a Bolzmann function for loamy sand and a liner function for sandy clay. Changes in the soil water content below a depth of 60 cm, for both the rain-fed paddies and the sloping fields, were not very large, and the high soil water content was maintained for over a year. It was found that the rain-fed paddies stored more soil water than the sloping fields.

    DOI: 10.3178/jjshwr.21.361

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  • Analysis of Surface Runoff in a Sloping Sandy Soil in Northeast Thailand using Soil Water Storage Capacity Reviewed International coauthorship

    Hiromasa Hamada, Hiroki Watabe, Toshitsugu Moroizumi, Somsak Sukchan

    Journal of the Japanese Society of Soil Science   ( 109 )   45 - 50   2008.7

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  • Estimation of NAPL content in saturated sandy soil using dual-probe heat-pulse method Reviewed

    Toshitsugu MOROIZUMI, Wakako HANZAWA, Choichi SASAKI

    Journal of Groundwater Hydrology   50 ( 1 )   17 - 24   2008.2

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    The simple methods for estimating NAPL content in saturated sandy soil using a volumetric heat capacity have been proposed as a fundamental study for measuring the NAPL content in groundwater. A dual-probe heat-pulse method was used to measure the volumetric heat capacity. The estimations of NAPL contents which were obtained by substituting the measurements of volumetric heat capacity into its model did not have a better accuracy than those by the calibration equation between known NAPL content and volumetric heat capacity, but could be close to the known NAPL contents. The estimations of NAPL contents were greatly improved when the regression line between the measured and estimated volumetric heat capacities.

    DOI: 10.5917/jagh1987.50.17

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  • Evaluation of the applicability of the water-saving vegetable cultivation technology by the soil moisture simulation Reviewed

    ODA Masato, MOROIZUMI Toshitsugu

    Journal of the Japanese Agricultural Systems Society   23 ( 3 )   245 - 250   2007.7

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    A water-saving cultivation technology for tomatoes has been developed in Nong Saeng village, Khon Kaen Province, Northeast Thailand. The technology utilizes the water stored in the soil during the rainy season. By using this technology, it is possible to reduce the amount of irrigation water used to less than 5 mm per crop cycle. In this area, the standard irrigation level is more than 500 mm. Since this technology is considered to depend on soil moisture, we demonstrated the mechanisms involved by using a soil moisture simulation. Further, we evaluated the applicability of the technology to other soil types in Northeast Thailand. In brief, the method we used was as follows. In the first step, we simulated the actual soil moisture dynamics from the end of the rainy season to the period of transplanting. In the next step, we carried out identical simulations for four soil types typical to Northeast Thailand. On the basis of the results obtained, we evaluated the applicability of the water-saving technology by comparing the water supply capacity of each soil type. For the analysis, we used the HYDRUS-1D simulation code, which has often been used in the agricultural field. The initial soil condition at the end of the rainy season (September 23, 2004) was designated as the saturated condition. The parameter for the dry sand layer effect was adjusted so that can be equal to the soil moisture condition of the transplanting time (December 1, 2004). The actual evaporation observed during this period was 150 mm. It was enough big dry sand layer effect to the 420 mm of the potential evaporation. Further, using these parameters, we simulated the soil conditions present from the time of transplanting to the time of harvesting. The results obtained were similar to the soil moisture dynamics that we had measured. Lastly, we simulated the soil moisture dynamics in the four soil types that are typical to Northeast Thailand (Nam Phong, Ubon, Roi-Et, Phimai). We compared the water supply capacities of these soil types. We observed that the technology was more suitable for Roi-Et and Phimai than for Nam Phong, where it was developed. The suitability of Ubon for the usage of this technology was lower than that of Nam Phong; however, the difference between the two was small. These results demonstrate that this water-saving technology can be applied to a large area of Northeast Thailand.

    DOI: 10.14962/jass.23.3_245

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  • 白瓜ビニールハウスにおける蒸発散量と上向き補給水量の推定 Reviewed

    三浦健志, 平野絵美, 森本祐二, 諸泉利嗣

    中国四国の農業気象   19   2 - 7   2006.12

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  • 白神山地の土壌熱伝導率の測定

    繁澤和佳子, 諸泉利嗣, 佐々木長市

    岡山大学環境理工学部研究報告   11 ( 1 )   89 - 92   2006.3

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  • EVALUATION OF NEIGHBORHOOD WATER ENVIRONMENT AND ITS MODELLING: TO REALIZE TOWN IMPROVEMENT BASED ON THE CONCEPT OF WATER RECYCLE Reviewed

    Mamoru TANIGUCHI, Hiroaki FURUMAI, Yoshiro ONO, Kenji OKUBO, Toshitsugu MOROIZUMI

    Doboku Gakkai Ronbunshuu G   33 ( 33 )   125 - 131   2006.1

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    The water environmet is one of the most important factors to indicate "Quality of Life" in neighborhood scale. This study aims to estimate the evaluation model for water environment based on the questionnaire survey in Okayama city. It is also examined that the evaluation reliability by residents for bio-chemical water quality in town stream. As the results, it is clarified that the certain amount of water flow is required to realize acceptable evaluation of water environment by neighbors. Contrarily, it is also found that higher water quality from bio-chemical points of view is not always necessary in town planning. The most significant political suggestion from the concept of water recycle is to utilize underground water resources that comes from sewage.

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  • 白神山地の土壌に関する研究(2)

    佐々木長市, 殿内暁夫, 野田香織, 松山信彦, 小関 恭, 諸泉利嗣, 檜垣大助

    白神研究   ( 2 )   28 - 34   2005.6

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  • 土壌・地下水調査結果に対する東北タイNong Saeng村の農民の意見・質問 Reviewed

    濱田浩正, 諸泉利嗣, Nongluck Suphanchaimat

    土壌の物理性   ( 99 )   95 - 101   2005.3

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  • Use of bromide to trace infiltration of rainfall through sandy soil in northeast Thailand Reviewed International coauthorship

    H Hamada, S Sukchan, T Moroizumi, H Watabe, S Hasegawa

    JARQ-JAPAN AGRICULTURAL RESEARCH QUARTERLY   39 ( 1 )   29 - 35   2005.1

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    Bromide (Br) was used to successfully trace the infiltration of rainfall through a sandy soil in northeast Thailand. A method was developed to measure the Br concentration in extracted water from soil samples in order to determine the vertical distribution of the Br concentration in soil water. Our experimental results revealed that Br moved downward with a piston flow and that the increase in the amount of water in the soil above the depth of the peak Br concentration equaled the increase in soil moisture caused by the infiltration. Using our method, we found that the largest amount of rainfall infiltration occurred during September. The amount of soil water above the peak Br concentration was calculated to be about 0 1 urn during the period between June 27, 2003 and August 7, 2003; about 100 mm during the period between June 27, 2003 and September 10, 2003; and about 80 mm during the period between June 27, 2003 and February 12, 2004.

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  • 白神山地の土壌に関する研究(1)

    佐々木長市, 殿内暁夫, 野田香織, 松山信彦, 檜垣大助, 諸泉利嗣

    白神研究   1 ( 1 )   24 - 29   2004.12

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  • Tillage effects on subsurface drainage Reviewed International journal

    T Moroizumi, H Horino

    SOIL SCIENCE SOCIETY OF AMERICA JOURNAL   68 ( 4 )   1138 - 1144   2004.7

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    Tillage near the soil surface may greatly influence drainage discharge and pressure head values in the subsurface zone. In this study, a controlled comparative experiment was conducted in the field under natural weather conditions, using a tilled and an untilled column, to evaluate the effects of tillage on subsurface drainage discharge and pressure head values. There were no significant differences between the two columns in subsurface drainage before tillage treatment before the study, as checked by a preliminary experiment. After tilling one column of the two columns, cumulative subsurface drainage discharge was larger and occurred earlier for the tilled column than for the untilled column. The measured drainage discharge and pressure head values were evaluated using the water movement model, HYDRUS version 6.0, which numerically solves the Richards equation. The HYDRUS model reproduced measured values well for subsurface drainage discharge and pressure head values after the tillage, as determined by root mean squared error (RMSE), mean bias error (MBE), and R(2). Therefore, it is concluded that the model, which includes the effects of tillage on the hydraulic properties, can explain the reasons for differences in observed drainage in the two columns. Moreover, the effects of tillage depth on subsurface drainage discharge were simulated. The results implied that the effect of tillage on subsurface drainage were induced by the conditions of pressure head just before the first rainfall, and this effect was equal to, or greater than, the effects of changes in hydraulic properties due to tillage.

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  • Measurement of thermal conductivity in soils and application of de Vries model

    Journal of the Faculty of Environmental Science and Technology,Okayama University   9 ( 1 )   117 - 120   2004.2

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  • 砂礫水田新土層における酸素および二酸化炭素濃度の変動

    小関 恭, 佐々木長市, Pongpattanasiri Sukthai, 諸泉利嗣

    農業土木学会論文集   ( 229 )   15 - 22   2004.2

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  • 白菜畑における土壌水分動態解析

    諸泉利嗣, 三浦健志, 小森隆

    中国・四国の農業気象   ( 16 )   16 - 19   2003.11

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  • 畑地用水使用量と気象条件の関係-岡山県U地区の事例- Reviewed

    三浦健志, 諸泉利嗣, 小林勇壮

    中国・四国の農業気象   ( 16 )   20 - 24   2003.11

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  • Survey on Spatial Variability of Surface Soil Moisture and Soil Physical Properties in a Sloping Grassland Field

    Journal of the Faculty of Environmental Science and Technology,Okayama University   8 ( 1 )   81 - 85   2003.3

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    DOI: 10.11408/jsidre1965.2002.447

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  • 熱収支ボーエン比法による水田からの蒸発散量の測定 Reviewed

    三浦健志, 竹原桃子, 諸泉利嗣

    中国四国の農業気象   ( 15 )   8 - 12   2002.11

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  • 畑地用水計画のための砂地圃場における微気象観測と土壌水分動態 Reviewed

    諸泉利嗣, 三浦健志, 江良昭浩

    中国四国の農業気象   ( 15 )   2 - 7   2002.11

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  • The effects of tillage on soil temperature and soil water Reviewed

    T Moroizumi, H Horino

    SOIL SCIENCE   167 ( 8 )   548 - 559   2002.8

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    Tillage in farmland plays an important role not only as a soil management tool for improving the plant root environment, but also as a factor that impacts the hydrological cycle and the energy balance in a region. This is because tillage affects soil moisture and soil temperature greatly in the unsaturated soil zone near the surface, which acts as an interface between the subsurface and the low atmosphere boundary.
    In this study, field experiments were conducted under natural weather conditions using two columns of a volcanic ash (andosol) soil to estimate the effects of tillage on soil temperature, pressure head, and evaporation in the unsaturated soil zone. The experimental results were compared with simulated pressure head and soil temperature values in the unsaturated soil zone. A one- dimensional model for simultaneous heat and water transport, based on the theory proposed by P. C. D. Milly in 1982 and 1984, was used. The governing equations were solved by the Galerkin finite element method. The simulated soil temperatures were in good agreement with the measured soil temperatures at most of the soil depths for both columns. After tillage, however, the simulated soil temperatures of the tilled column were higher than those of the untilled column for depths of 4, 9, and 14 cm in the daytime. The simulated pressure head values were in agreement with the measured values up to the tillage in the tilled column. After the tillage treatment for the tilled column and 60 h of elapsed time for the untilled column, the simulated pressure head values were in poorer agreement with the measured ones. After the tillage, however, the simulated pressure head values were greater for the tilled column than for the untilled column for depths of 5, 10, and 25 cm. This reflects the same results as with the measured pressure head results.

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  • 傾斜草地における表層土壌水分の空間分布特性と領域平均を示す代表地点の探索 Reviewed

    諸泉利嗣, 佐藤裕一, 佐藤幸一

    農業土木学会論文集   ( 220 )   447 - 455   2002.8

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  • Long-term Trend of Rainfall at Tsudaka Farm of Okayama University

    Journal of the Faculty of Environmental Science and Technology,Okayama University   7 ( 1 )   107 - 111   2002.3

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  • 心土破砕が傾斜畑の表面流出量と圧力水頭・地温に与える影響 Reviewed

    諸泉利嗣, 佐藤裕一, 佐藤幸一, 三浦健志

    土壌の物理性   ( 88 )   45 - 52   2001.10

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  • 青森市における気候変動傾向

    諸泉利嗣, 佐藤裕一, 佐藤幸一, 三浦健志

    岡山大学環境理工学部研究報告   6 ( 1 )   81 - 84   2001.2

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  • Simple Method of pF Measurement using Time Domain Reflectometry. Reviewed

    MOROIZUMI Toshitsugu, MIURA Takeshi, SATO Yuichi, SATO Koichi

    JOURNAL OF JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES   13 ( 3 )   240 - 242   2000.5

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    A simple method of pF measurement was developed by combining TDR-Tensiometer with TDR-Hygrometer. Using this method, we can measure the soil moisture characteristic curve over the wide range easily. This method was applied to the soil moisture characteristic curve of Toyoura sand. The experimental results were compared with those of the ordinary methods (e.g., suction and pressure plate methods), and its availability was discussed. As a result, the values measured by the TDR-Tensiometer were in good agreement with those of the ordinary methods, but the values measured by the TDR-Hygrometer were not satisfactory. Some problems to be overcome in the future were presented.

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  • The Effects of Tillage on the Temperature and Water in an Unsaturated Soil Zone. Reviewed

    MOROIZUMI Toshitsugu

    JOURNAL OF JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES   11 ( 1 )   61 - 66   1998.1

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    The field experiments were conducted by using two columns in order to estimate the effects of tillage on the temperature and water in an unsaturated soil zone. The effects were shown by being compared with values obtained in the no-till column. The results were as follows: an increase in soil temperature in tilled zone; an increase of pressure head below the tilled zone; a reduction of cumulative evaporation by tillage; and increased air temperature near the soil surface.

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  • Characteristics of Heat and Water Transfer in Unsaturated Soil Zone under Field Conditions. Reviewed

    MOROIZUMI Toshitsugu, HORINO Haruhiko, MARUYAMA Toshisuke, SATO Yuichi, SATO Koichi

    JOURNAL OF JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES   10 ( 1 )   20 - 31   1997.1

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    The phenomenon of coupled heat and water transfer in soil plays an important role as a part of the hydrologic cycle. In this paper, the characteristics of heat and water transfer in the unsaturated soil zone under field conditions were investigated by applying the coupled heat and water transfer model to the soil temperatures and pressure heads which were measured under natural weather conditions. Furthermore, the influences of a correction coefficientζand surface boundary conditions on the changes of temperature and pressure head in the soil, and the estimation of evaporation by a water balance method were discussed. The typical results were as follows: (1)The directions of fluxes driven by soil temperature gradients had complicated daily variations by the changes of the soil temperature profile, compared with those of fluxes driven by pressure head gradients. (2)The flux with water movement was a downward flow in all layers at night (2:00) and in the morning (8:00), but it was a upward flow in upper layers above 10cm in depth in the daytime (13:00, 16:00). (3)The main components of water and heat fluxes were the ql driven by the liquid water movement and the qhc by heat conduction, respectively. (4)The sensitivity analysis of the ζ showed that there were slight differences between the calculated values for each ζ. (5)The sensitivity analysis of the surface boundary conditions showed that the sensitivities of soil temperature and pressure head were greater near the soil surface. It was inferred from this result that the differences between the measured and the calculated values in pressure heads in layers deeper than 25cm weren't affected by surface boundary conditions. (6)Evaporation estimated by a water balance method was used. The amount of evaporation estimated by calculated pressure heads was a little larger than the one by the measured values.

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  • The Macropore Structure of Soils Formed by Grass Roots : 4. Macropore morphology of grassland of Brown Forest soil, England, determined by X-ray and contrast media Reviewed

    SATO Koichi, SATO Yuichi, MOROIZUMI Toshitugu

    Japanese Journal of Grassland Science   43 ( 3 )   325 - 332   1997.1

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    The morphology of macropores in the root zones of grassland in Brown forest soil, England, was investigated in the present study. The structure of macropores was determined by three dimensional stereoscopic-radiography of macropore morphology and examination of the physical condition of the soil. The soil samples were collected from four layers of root-zones that were shallower than 85cm in depth in a 14-year-old perennial ryegrass pasture. Each soil layer had a clay texture, and was dense and solid. The porosity rate was between 54% (surface layer; 0-5cm) and 38% (subsoil layer; 80-85cm). The non-capillary pores of the first soil layer (0-10cm) consisted of pores formed by earthworms and aggregates, and in the second to the fourth soil layers (10-85cm) the pores were formed by roots. The capillary pores in the surface layer (first layer) consisted of pores formed by roots and pores of inter-particles and inter-aggregates. In the subsoil layer, the capillary pores were formed by roots. Thus, similar to the pore morphology of the Andosols, Steppe soil cases and Red yellow soil, most macropores of grassland in Brown forest soil, England, are tubular in shape and formed by plant roots.

    DOI: 10.14941/grass.43.325

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  • 不飽和土壌層内における熱・水分移動特性に関する理論的考察 Reviewed

    諸泉利嗣, 堀野治彦, 中村公人, 丸山利輔

    農業土木学会論文集   ( 184 )   661 - 669   1996.8

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    DOI: 10.11408/jsidre1965.1996.661

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  • 地下水位一定型成層土壌中の準定常熱・水分移動特性(共著) Reviewed

    中村公人, 堀野治彦, 諸泉利嗣, 丸山利輔

    農業土木学会論文集   ( 181 )   39 - 48   1996.2

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    DOI: 10.11408/jsidre1965.1996.39

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  • Experimental Studies on Characteristics of Heat Transfer in Satura ted Soil Zone Reviewed

    Haruhiko HORINO, Toshitugu MOROIZUMI, Toshisuke MARUYAMA

    Journal of Groundwater Hydrology   33 ( 4 )   227 - 238   1991.12

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    DOI: 10.5917/jagh1987.33.227

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Books

  • Applied Groundwaterwater Modeling

    ( Role: Joint translator)

    2019.6  ( ISBN:9784320047365

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    Total pages:xxi, 497p, 図版 [10] p   Language:Japanese Book type:Scholarly book

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  • シリーズ<地域環境工学>地域環境水文学

    田中丸浩哉, 大槻恭一, 近森秀高, 諸泉利嗣( Role: Joint author ,  第5章 土壌水と地下水,付録B HYDRUSによる浸透流解析)

    ㈱朝倉書店  2016.3  ( ISBN:9784254445015

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  • よくわかる測量実習(増補)

    細川, 吉晴, 西田, 修三, 今野, 惠喜, 藤原, 広和, 諸泉, 利嗣, 守田, 秀則( Role: Joint author)

    コロナ社  2008.4  ( ISBN:9784339052237

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    Total pages:vi, 179p, 図版 [4] p   Language:Japanese

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  • 土壌物理学 土中の水・熱・ガス・化学物質移動の基礎と応用

    築地書館  2006  ( ISBN:4806713244

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  • Modeling Variably Saturated Flow with HYDRUS-2D

    ( Role: Joint translator)

    2004.3 

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  • 草地科学実験・調査法

    (社)畜産技術協会  2004 

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  • ファイテク How to みる・きく・はかる-植物環境計測-

    養賢堂  2002 

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  • 新編 土壌物理用語事典

    (株)養賢堂  2002 

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  • よくわかる測量実習

    コロナ社  1998  ( ISBN:9784339052022

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  • 地域環境と潅漑排水-農業土木学から地域環境工学への展開-

    (社)畑地農業振興会  1997 

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MISC

  • Discussion at the 63th symposium: Modeling of mass and energy dynamics between the earth's surface and the atmosphere- contribution ecpected from soil physics

    Hirotaka SAITO, Toshitsugu MOROIZUMI, Nobuo TORIDE

    Journal of the Japanese Society of Soil Physics   ( 151 )   69 - 75   2022.7

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  • The 63th symposium: Modeling of mass and energy dynamics between the earth's surface and the atmosphere- contribution ecpected from soil physics

    Nobuo TORIDE, Toshitsugu MOROIZUMI, Hirotaka SAITO

    Journal of the Japanese Society of Soil Physics   ( 151 )   25 - 25   2022.7

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  • 編集後記

    諸泉利嗣

    土壌の物理性   ( 131 )   72 - 72   2015.11

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  • 地下水学と土壌物理学の接点-特集「最近の地下水研究」

    中川 啓, 諸泉利嗣

    土壌の物理性   ( 131 )   29 - 29   2015.11

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  • Long-Term Trends of Pan Evaporation and an Analysis of Its Causes in Finland in "Assessment Tools for Solvng Aquatic Problems" International coauthorship

    Toshitsugu Moroizumi, Naoya Ito, Jari Koskiaho, Sirkka Tattari

    Project Report for Bilateral Cooperative Program between JAPAN and FINLAND   23 - 46   2014.6

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  • 巻頭言「専門バカ」になる! Invited

    諸泉利嗣

    土壌の物理性   ( 123 )   1 - 1   2013.3

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  • 編集後記

    諸泉利嗣

    土壌の物理性   ( 117 )   35 - 35   2011.3

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  • CIP法による地下水流動に対する数値シミュレーション

    渡邉はるか, 水藤寛, 諸泉利嗣

    MathESDによる異分野協働型人材養成プログラム成果報告書   124 - 131   2010.3

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  • 学会賞を受賞して Invited

    諸泉利嗣

    農業農村工学会誌(水土の知)   77 ( 11 )   61 - 61   2009.11

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  • Hybridized GAs with gradient based methods for inverse problems in groundwater flow simulations

    H. Suito, Y. Nanazawa, Y. Horikawa, T. Tsukazaki, T. Moroizumi, Y. Ono

    Proceedings of EUROGEN07, Evolution and deterministic methods for design, optimization and control   297 - 302   2008.11

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  • 書評 地盤環境工学ハンドブック

    諸泉利嗣

    地下水学会誌   50 ( 2 )   117 - 117   2008.5

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    Language:Japanese   Publishing type:Book review, literature introduction, etc.   Publisher:日本地下水学会  

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  • 東北タイの砂質傾斜農地における表面流出の発生メカニズムとため池の水位 International coauthorship

    渡部洋己, 濱田浩正, 諸泉利嗣, Somsak Sukchan

    国際農林水産業研究成果情報第16号   2008

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    Language:Japanese   Publishing type:Rapid communication, short report, research note, etc. (bulletin of university, research institution)   Publisher:国際農林水産業研究センター  

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  • タイ王国土地開発局における大学院生の現地研修報告 Reviewed

    諸泉利嗣, 森本祐二, 山本将也, 濱田浩正, SUKCHAN Somsak

    水土の知(農業農村工学会誌)   75 ( 12 )   25 - 30   2007.12

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  • HYDRUSにおける根の吸水モデルと今後の課題 Invited

    諸泉利嗣

    第46回農業土木学会土壌物理研究部会研究集会   21 - 22   2007.10

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  • 最終処分場の地下水流動と汚染物質の移流拡散シミュレーションシステムの構築

    堀川靖夫, 水藤寛, 諸泉利嗣

    環境学を織るエコインフォマティクス成果報告書   23 - 24   2007

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  • 岡山大学「環境報告書2005-2006」の発行

    諸泉利嗣

    環境制御   ( 28 )   34 - 34   2006.12

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  • 第6章 岡山南部地域の気象環境と蒸発散量

    諸泉利嗣

    岡山南部農業水利事業「児島湖流域における生態系の保全と水資源管理検討委託業務」報告書   2006

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  • Soil water and groundwater in Nong Saeng

    Hiromasa HAMADA, Toshitsugu MOROIZUMI, Hiroki WATABE, Kriengsak SRISUK, Shuichi HASEGAWA

    JIRCAS Working Report No.47   2006

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  • 地下水流動シミュレーションと透水係数分布の同定

    塚崎哲也, 水藤寛, 堀川靖夫, 七澤洋平, 諸泉利嗣, 小野芳朗

    数理解析研究所講究録   2006

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  • Dialogue research between researchers and farmers on development of water resources International journal

    H. Hamada, T. Moroizumi, N. Suphanchaimat, J.Iamlaor, H. Watabe

    3rd Asian Pacific Conference (Bangkok)   2006

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  • Groundwater in Nong Saeng

    Hiromasa HAMADA, Toshitsugu MOROIZUMI, Hiroki WATABE, Kriengsak SRISUK, Shuichi HASEGAWA

    JIRCAS-Thailand Collaborative Research Project Workshop Proceedings   2005

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  • 双極熱パルス法を用いた飽和土壌中の油汚染度の推定

    諸泉利嗣

    岡山大学21世紀COEプログラム 循環型社会への戦略的廃棄物マネジメント 平成16年度成果報告書   2005

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  • 第六章モデルを用いた流量解析-第二節地下水流動解析,第三節物性測定(カラム実験)

    諸泉利嗣

    科学技術振興調整費「廃棄物処分場の有害物質の安全・安心保障」平成16年度中間成果報告書   2005

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  • Opinions and quesitons of farms in Nong Saeng village , northeast Thailand to results of soil and groundwater investigations

    Hiromasa HAMADA, Toshitsugu MOROIZUMI, Nongluck Suphanchaimat

    Journal of the Japanese Society of Soil Physics   ( 99 )   95 - 101   2005

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  • Numerical simulation of underground water flow around landfill sites

    H.Suito, Y.Horikawa, T.Moroizumi, Y.Ono

    10th International Waste Mnagement and Landfill Symposium (Sardinia2005)   2005

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  • 放射収支計の機種の違いによる測定値の差異-RBSE社製Q*7と英弘精機製CN-11型の比較-

    三浦健志, 諸泉利嗣, 吉崎文人, 黒田訓宏

    しぶかわ   2004

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  • 水田と畑の放射収支の特徴と放射収支計の機種の違いによる測定値の差異

    吉崎文人, 黒田訓宏, 三浦健志, 諸泉利嗣

    岡山大学農学部センタ-報告   2004

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  • Simulation on the effects of tillage on pressure head, subsurface drainage, and groundwater recharge

    Toshitsugu MOROIZUMI

    Proceedings of the International Symposium on Groundwater Problems related to Geo-Environment   2003

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  • Numerical Simulation of Soil Water Flow in a Chinese Cabbage Field

    MOROIZUMI Toshitsugu, MIURA Takeshi, KOMORI Takashi

    Agricultural Meteorology of Chugoku and Shikoku   ( 16 )   16 - 19   2003

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  • Relationship between meteorogical sonditions and the amount of irrigation water use for upland fields - Case study of U-district, Okayama prefecture-

    MIURA Takeshi, MOROIZUMI Toshitsugu, KOBAYASHI Yuso

    ( 16 )   20 - 24   2003

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  • 砂地圃場の蒸発散量と土壌水分動態解析 Reviewed

    諸泉利嗣, 三浦健志

    第6回水資源に関するシンポジウム論文集   315 - 318   2002.8

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  • Spatial variability of surface soil moisture in a sloping grassland field Reviewed

    MOROIZUMI Toshitsugu, SATO Yuichi, SATO Koichi, MIURA Takeshi

    Proceedings of the 17th World Congress of Soil Science   2002.8

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  • 高1・秋 苦手撲滅大作戦 Invited

    諸泉利嗣

    Viccess!(高1学力テスト解答解説)   7 - 7   2001.11

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    Authorship:Lead author   Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media)   Publisher:㈱ベネッセコーポレーション  

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  • 永年草地土壌におけるX線造影法で求めた粗孔隙形態

    佐藤幸一, 佐藤裕一, 諸泉利嗣

    東北草地研究会誌   ( 14 )   49 - 63   2001

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    Language:Japanese   Publisher:東北草地研究会  

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  • 高1・秋 苦手撲滅大作戦 Invited

    諸泉利嗣

    Viccess! (高1学力テスト解答解説)   7 - 7   2000.11

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    Authorship:Lead author   Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media)   Publisher:㈱ベネッセコーポレーション  

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  • 耕起処理が畑土壌中の温度・水分環境に与える影響 Invited

    諸泉利嗣

    第38回農業土木学会土壌物理研究部会研究集会論文集   39 - 45   1999

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  • 研修旅行,雑感

    諸泉利嗣

    平成9年度 第5回海外学生研修旅行 報告書   85 - 85   1998.10

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    Language:Japanese   Publisher:農業土木学会スチューデント委員会  

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  • 地下食料保冷システムにおける熱負荷の評価 Reviewed

    中村公人, 諸泉利嗣, 三野 徹

    中国・日本学術シンポジウム「持続的農牧生産の発展と環境保全」論文集   327 - 330   1998.5

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  • 耕起処理が畑中壌中の温度・水分環境に与える影響-実測値と数値解の比較- Reviewed

    諸泉利嗣, 堀野治彦

    中国・日本学術シンポジウム「持続的農牧生産の発展と環境保全」論文集   263 - 266   1998.5

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  • iii. 不飽和帯への熱損失の定量化に関する研究 : 科学技術総合研究委託費(3.7.1(2) 降積雪対策技術の高度化に関する研究(II),3.7.1 総合研究,3.7 科学技術振興調整費による研究,3. 研究業務)

    丸山 利輔, 渡邉 紹裕, 堀野 治彦, 諸泉 利嗣

    防災科学技術研究所年報   4   46 - 47   1994.3

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Presentations

  • t日平均確率可能蒸発量の推定式

    諸泉利嗣, 宗村広昭

    水文・水資源学会/日本水文科学会 2022年度 総会・研究発表会  2022.9.4  水文・水資源学会/日本水文科学会

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    Event date: 2022.9.4 - 2022.9.7

    Language:Japanese   Presentation type:Poster presentation  

    Venue:京都大学防災研究所(宇治市)  

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  • 高梁川流域におけるフルボ酸鉄濃度の評価 International coauthorship

    宗村 広昭, 濱岡 幸太, Yengeh Rohdof, 諸泉 利嗣, 森 也寸志

    水文・水資源学会/日本水文科学会 2022年度 総会・研究発表会  2022.9.4  水文・水資源学会/日本水文科学会

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    Event date: 2022.9.4 - 2022.9.7

    Language:Japanese   Presentation type:Poster presentation  

    Venue:京都大学防災研究所(宇治市)  

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  • 岡山県の中山間地域が有する生態系サービスの価値発見と見える化

    庄司 怜, 宗村広昭, 諸泉利嗣

    2021年度(第70回)農業農村工学会大会講演会  公益社団法人 農業農村工学会

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    Event date: 2021.8.31 - 2021.9.3

    Language:Japanese   Presentation type:Poster presentation  

    Venue:Web開催  

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  • バルクハブ流域における作物収量・灌漑水量の推定 International coauthorship

    宗村広昭, 諸泉利嗣, Ezatullah RABANIZADA, Shoarib SABOORY

    水文・水資源学会2019年度総会・研究発表会  2019.9.11  一般社団法人 水文・水資源学会

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    Event date: 2019.9.11 - 2019.9.13

    Language:Japanese   Presentation type:Poster presentation  

    Venue:千葉工業大学  

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  • 1高度データを用いた熱収支ボーエン比法による潜熱・顕熱フラックスの推定

    佐々木 亨, 諸泉利嗣, 宗村広昭

    水文・水資源学会2019年度総会・研究発表会  2019.9.11  一般社団法人 水文・水資源学会

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    Event date: 2019.9.11

    Language:Japanese   Presentation type:Poster presentation  

    Venue:千葉工業大学  

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  • 岡山市における確率可能蒸発量とその推定式

    勝治 誠, 諸泉利嗣, 宗村広昭

    2019年度農業農村工学会大会講演会  2019.9.6  公益社団法人 農業農村工学会

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    Event date: 2019.9.4 - 2019.9.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東京農工大学府中キャンパス  

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  • 児島湾へ流入する窒素負荷量の推定に向けた基礎研究

    宗村広昭, 堀元智喜, 大野隼輔, 諸泉利嗣

    2019年度農業農村工学会大会講演会  2019.9.5  公益社団法人 農業農村工学会

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    Event date: 2019.9.4 - 2019.9.6

    Language:Japanese   Presentation type:Poster presentation  

    Venue:東京農工大学府中キャンパス  

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  • 黒ボク土における電流・電圧発生の基本的特性

    坂口哲司, 諸泉利嗣, 三浦健志

    平成30年度農業農村工学会大会講演会  2018.9.5  公益社団法人 農業農村工学会

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    Event date: 2018.9.4 - 2018.9.7

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:京都大学吉田キャンパス  

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  • 熱収支ボーエン比法による小面積水面からの蒸発量の測定

    三浦健志, 諸泉利嗣, 土田翔太

    農業気象学会2017年度全国大会  2018.3.13  農業気象学会

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    Event date: 2018.3.13 - 2018.3.17

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:九州大学伊都キャンパス  

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  • 現地観測にもとづいた最低気温予測予測

    上田悠生, 三浦健志, 諸泉利嗣

    農業気象学会2017年度全国大会  2017.3.28  日本農業気象学会

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    Event date: 2017.3.27 - 2017.3.30

    Language:Japanese  

    Venue:北里大学獣医学部(青森県十和田市)  

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  • 人口マクロポアの効果に及ぼす初期水分量の影響

    崎川和紀, 森也寸志, 諸泉利嗣

    2015年度土壌物理学会大会講演会  2015.10.24  土壌物理学会

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    Event date: 2015.10.24

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:宮城大学(宮城県)  

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  • Estimation of sensible and latent heat fluxes using simplified methods

    Bando Keiji, Nakamichi Takeshi, Moroizumi Toshitsugu, Miura Takeshi

    Proceeding of Annual Conference  2011  THE JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES

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    Event date: 2011.8.30 - 2011.9.1

    Language:Japanese   Presentation type:Poster presentation  

    Meteorological data at two heights are needed to estimate sensible and latent heat fluxes using the Bowen ratio energy balance and the gradient methods. It is, therefore, very convenient if we can estimate those fluxes with the data only at one height. In this study, a half-order time derivative method which needed the meteorological time series data at one height was investigated. As a result, the method was applicable for estimating the sensible heat flux, but not for the latent heat flux. Furthermore, the latent heat flux estimated as the residual of heat balance equation had reasonable values.

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  • Seasonal variation of regional surface heat fluxes using satellite data

    Nakamichi Takeshi, Moroizumi Toshitsugu, Miura Takeshi

    Proceeding of Annual Conference  2011  THE JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES

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    Event date: 2011

    Language:Japanese  

    The seasonal variation of regional surface heat fluxes was estimated by using satellite data. The objected area is the center of Kanto region, which has many kinds of land uses. The bulk transfer method and surface energy balance equation were used to estimate the fluxes. The latent heat flux in paddy fields and grass lands and the sensible heat flux in grass lands and urban areas were well estimated within 30% of mean relative error. The results of seasonal variation show that the order of the sensible and ground heat fluxes had almost same values in paddy fields, and the order of the sensible heat flux in urban areas and grass lands had almost same values. The ground heat flux in urban areas was much larger than that in other land uses.

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  • Improvement of the complementary relationship-based evapotranspiration Models

    Nakamichi Takeshi, Moroizumi Toshitsugu, Miura Takeshi

    Proceeding of Annual Conference  2009  THE JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES

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    Event date: 2009

    Language:Japanese  

    Advection-Aridity(AA) model can calculate actual evapotranspiration by using only meteorological data. However, comparing the model with Penman equation showed that AA model doesn't properly evaluate evapotranspiration from urban moisture area. In urban area, Actual evaporation from water calculated by AA model(E) are averagely 380mm/year less than that by Penman equation(Epen). To improve this problem, modification coefficient k, defined as k=a*alpha+b, is suggested. Regression coefficients a,b are determined as satisfying k=Epen/E for evaporation from water and k=1 for evaporation from urban surface. By using this coefficient k, evaporation from water is nearly equal to value estimated by Penman equation, while evaporation from urban surface is changeless.

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  • 成層土壌中の熱・水同時移動に関する数値シミュレーション

    中村公人, 堀野治彦, 丸山利輔, 諸泉利嗣

    平成7年度農業土木学会大会講演要旨集  1995.7 

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    Event date: 1995.7

    Language:Japanese  

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  • 異なる温度勾配下における土壌層内の熱・水分移動特性

    諸泉利嗣, 堀野治彦, 丸山利輔

    1990年度日本地下水学会春季講演会  1990.5.18  日本地下水学会

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    Event date: 1990.5.18

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:日本都市センター(東京)  

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  • 飽和土壌層内における熱移動機構に関する実験的考察

    諸泉利嗣, 堀野治彦, 渡邉紹裕, 丸山利輔

    第46回農業土木学会京都支部研究発表会  1989.11.9  (社)農業土木学会

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    Event date: 1989.11.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:富山市  

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  • 道路構造による凍結防止剤の地下水への浸透移動に関する調査研究

    佐々木薫, 秦 二朗, 諸泉利嗣

    第52回地盤工学研究発表会  2017.12.14  公益社団法人 地盤工学会

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    Venue:名古屋国際会議場  

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  • Prediction of Soil Water Content Using Multiple Regression Model with Time Series Data International conference

    Toshitsugu MOROIZUMI, Shusaku KUBOTA, Takeshi MIURA

    2016.12.13  American Geophysical Union

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    Venue:San Francisco  

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  • 東北タイ天水農業地帯の地水環境調査

    アジア地域における地盤・地下水環境保全のための環境技術セミナー  2010 

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  • 関東地方における土地利用ごとの地表面熱収支推定モデルの検討

    第65回農業農村工学会中国四国支部講演会  2010 

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  • 土壌の粒径差を利用した除塩効果向上の検討

    2010年度土壌物理学会大会  2010 

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  • 温度法による基準蒸発散量の推定と検証

    平成22年度農業農村工学会大会講演会  2010 

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  • 土壌中の油汚染度の推定・東北タイの地水環境調査

    2010年岡山地域セミナー  2010 

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  • ドリーネにおける夜間気温の観測と最低気温の予測

    2010年度 日本農業気象学会 中国・四国支部大会  2010 

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  • Characteristics of the complementary relationship-based evapotranspiration models: Comparison between the Urban and the Rural Areas

    2010 AGU Fall Meeting  2010 

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  • 土壌の物理的性質の差に着目した除塩効果向上の検討

    第65回農業農村工学会中国四国支部講演会  2010 

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  • 補間関係式を用いた実蒸発散量推定の特徴

    平成21年度農業・農村工学会大会講演会要旨集  2009 

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  • 干拓地圃場における微気象法による潜熱・顕熱フラックスの測定

    2009年度農業気象学会中国四国支部大会  2009 

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  • 翌朝の最低気温予測方法の検討

    2009年度農業気象学会中国四国支部大会  2009 

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  • 数値シミュレーションによる除塩特性表の検討

    平成21年度農業・農村工学会中国四国支部講演要旨集  2009 

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  • 補間関係式を用いた実蒸発散量推定式の改良

    水文・水資源学会2009年度総会・研究発表会  2009 

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  • 翌朝の最低気温予測方法の検討

    平成21年度農業・農村工学会大会講演会要旨集  2009 

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  • 補間関係式を用いた広域実蒸発散量の推定と特徴-岡山県を事例として-

    水文・水資源学会2008年度総会・研究発表会  2008 

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  • 廃棄物処分場からの漏洩水による地下水汚染シミュレーション

    第14回地下水・土壌汚染とその防止対策に関する研究集会  2008 

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  • Estimaion of potential water resources in mega cities in asia

    2008韓国水資源協会年次総会  2008 

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  • 白瓜ビニールハウス内の蒸発散量と上向き補給水量の推定

    日本農業気象学会2008年度全国大会  2008 

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  • Makkink式とHamon式における精度向上のための補正係数の提案

    第63回農業農村工学会中国四国支部講演会講演要旨集  2008 

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  • 廃棄物処分場における地下水中の汚染物質拡散シミュレーション

    第63回農業農村工学会中国四国支部講演会講演要旨集  2008 

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  • 施設畑における灌漑用水量の検討

    平成20年度農業・農村工学会大会講演会要旨集  2008 

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  • 廃棄物処分場における地下水流動及び汚染物質輸送解析

    平成19年度農業土木学会大会講演会  2007 

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  • 汚染水漏洩シミュレーションシステムの構築

    科学技術振興調整費 アウトリーチセミナー  2007 

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  • タイ国土地開発局における大学院生の現地研修

    平成19年度農業土木学会大会講演会  2007 

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  • アジアの大都市における水資源賦存量の推定

    水文・水資源学会2007年度総会・研究発表会  2007 

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  • Hybridized GAs with gradient-based methods for inverse problems ingroundwater flow simulation

    EUROGEN 2007, ECCOMAS Thematic Conference  2007 

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  • 環境問題に対する数値計算手法とその応用

    日本数学会年会講演予稿集  2007 

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  • 簡易手法によるアジア大都市水収支の推定

    第62回農業農村工学会中国四国支部講演会  2007 

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  • Estimaion of potential water resources and water use in mega cities in asia

    2nd International Workshop on Rainwater and Reclaimed Water for Urban Sustainable Water Use  2007 

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  • 白瓜ビニールハウス内の上向き補給水量と蒸発散量の推定

    平成19年度農業土木学会大会講演会  2007 

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  • Simulation of flows of groundwater and contaminants around landfill sites

    European Conference on Computational Fluids Dynamics (ECCOMAS CFD2006)  2006 

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  • 白瓜ビニールハウスにおける土壌水分動態と上向き補給水量の推定

    平成18年度農業土木学会大会講演会要旨集  2006 

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  • Numerical analysis for heat and groundwater flows in landfill sites

    Abstract proceedings of the 4th Intercontinental Landfill Research symposium  2006 

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  • 土壌シミュレーションによる節水野菜栽培技術の適用性評価

    システム農学会2006度春季シンポジウム・一般発表会  2006 

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  • 最終処分場周辺における地下水流動シミュレーション

    第55回理論応用力学講演会  2006 

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  • Simulation of groundwater flow around a waste landfill site

    American Geophysical Union 2006 Fall Meeting  2006 

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  • 白瓜ビニールハウスにおける土壌水分動態と蒸発散量の推定

    平成18年度農業気象学会中国四国支部大会  2006 

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  • 最終処分場周辺における地下水位変動

    水文・水資源学会2006年度総会・研究発表会  2006 

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  • 白瓜ビニールハウスにおける微気象測定と蒸発散量の推定

    水文・水資源学会2006年度総会・研究発表会  2006 

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  • 岡山県3河川流域における実蒸発散量と水収支の推定

    水文・水資源学会2006年度総会・研究発表会  2006 

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  • 最終処分場周辺における地下水流動解析

    平成18年度農業土木学会大会講演会要旨集  2006 

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  • 双極熱パルス法を用いた飽和砂土中の油汚染度の推定

    第61回農業土木学会中国四国支部講演会講演要旨集,48-49  2006 

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  • 地下水多相流の数値計算と土質パラメーターの推定

    日本応用数理学会2006年度年会  2006 

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  • Computational assessments of groundwater pollution around final disposal sites

    International Seminar on Applied Mathematics for Real World Problems  2006 

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  • Estimating the NAPL content in sandy soil using amplitude domain reflectmetry

    The seminar on Soil Physics  2005 

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  • 東北タイ天水農業地域における土壌水分動態解析と水資源賦存量の推定

    平成17年度農業土木学会大会講演会要旨集  2005 

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  • Synoptic Watershed Model Combined with the Runoff Routine

    International Workshop on Rainwater and Reclaimed Water for Urban Sustainable Water Use  2005 

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  • Estimaion of regional-scale actual evapotranspiration in Okayama using AMeDAS, land classification, and elevation data

    International Workshop on Rainwater and Reclaimed Water for Urban Sustainable Water Use  2005 

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  • 最終処分場の有害物質の安全安心保障その5 「処分場地下水モデル」最終処分場における地下水流動シミュレーション

    廃棄物学会研究発表会講演論文集,Vol.16  2005 

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  • ADR法による飽和砂土におけるNAPL含有量の推定

    第60回農業土木学会中国四国支部講演会  2005 

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  • 天水農業地帯における土壌水分シミュレーション

    平成16年度農業土木学会  2004 

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  • 東北タイの砂質傾斜畑における地表面流去水の発生要因

    第46回土壌物理学会  2004 

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  • サーモTDRを用いた土壌中の油汚染度の測定

    第46回土壌物理学会  2004 

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  • 東北タイにおける砂質傾斜畑における土壌流亡の発生メカニズム

    第53回農業土木学会北海道支部研究発表会  2004 

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  • 岡山県旭川流域における広域実蒸発散量の推定

    第59回農業土木学会中国四国支部講演会  2004 

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  • ペンマン蒸発散位に対する気象要素の感度解析

    平成16年度農業土木学会大会講演会  2004 

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  • 放射収支計の機種の違いによる測定値の差異

    平成16年度農業土木学会大会講演会  2004 

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  • 東北タイ天水農業地帯における土壌水分調査

    平成16年度農業土木学会大会講演会  2004 

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  • Introduction of HYDRUS(Simulation software on soil water movement)

    The Seminar on soil water movement at International Training Center for Agricultural Development  2003 

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  • 牛窓地区における用水使用量と気象要素との関係 Reilationship between water use amount and meteorological conditions

    平成15年度農業土木学会大会講演会  2003 

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  • 白菜畑における土壌水分動態解析 Numerical simulation of soil water flow in a Chinese cabbage field

    平成15年度農業土木学会大会講演会  2003 

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  • Evapotranspiration and simulation of soil water dynamics in a sand field

    The Seminar on soil water movement at International Training Center for Agricultural Development  2003 

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  • 畑地用水使用量と気象要素との関係-岡山県U地区における事例-

    平成15年度農業気象学会中国・四国支部大会  2003 

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  • 浅い耕起が地下排水に与える影響

    第56回農業土木学会中国四国支部講演会  2002 

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  • Spatial variability of surface soil moisture in a sloping grassland field

    17th Word Congress of Soil Science  2002 

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  • 冬瓜畑における蒸発散量の測定と上向き補給水量

    平成14年度農業土木学会講演会  2002 

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  • 潅漑条件下の砂地圃場の土壌水動態解析

    平成14年度農業土木学会大会講演会  2002 

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  • 砂地圃場の蒸発散量と土壌水分動態解析

    第6回水資源に関するシンポジウム  2002 

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  • 裸地砂地圃場の熱・水動態解析と上向き水分フラックス

    平成13年度農業土木学会(平成13年度農業土木学会大会講演会講演要旨集, 512-513)  2001 

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    Language:Japanese   Presentation type:Oral presentation (general)  

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  • 裸地圃場における土壌水分・地温の時空間変動特性

    2001年水文・水資源学会(研究発表会要旨,150-151)  2001 

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  • 草地における表層土壌水分の空間的変動特性に関する検討

    第56回農業土木学会中国四国支部講演会(講演要旨,142-143)  2001 

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  • 平成9〜11年東伯農業水利事業地区における用水利用実態

    平成12年度農業土木学会大会  2000 

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  • 草地における表層土壌水分の空間分布特性

    平成12年度農業土木学大会  2000 

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  • TDRを用いた簡易pF試験法の開発

    第41回土壌物理学会シンポジウム  1999 

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  • 耕起処理が畑土壌中の温度・水分環境に与える影響

    第38回農業土木学会土壌物理研究部会研究集会  1999 

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  • 灌漑砂地圃場における微気象観測と土壌水分の動態

    日本農業気象学会中国・四国支部学会  1999 

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  • 中国四国地方の蒸発散位分布

    農業土木学会中国四国支部第54回講演会  1999 

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  • Numerical Analysis of Water and Heat in a Field Soil by the Coupled Model and the Uncoupled Model

    平成11年度農業土木学会大会  1999 

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  • Numerical Analysis for Space-Time Dynamics of Water and Heat in a Field Soil International coauthorship International conference

    T Moroizumi, B P Mohanty, P J Shouse, M Th.van Genuchten

    AGU 1998 Fall Meeting  1998.12.10  米国地球物理学連合

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    Venue:San Francisco, CA  

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  • Theoretical Studies on Characteristics of Heat and Water Transfer in Unsaturated Soil Zone "jointly worked"

    1996 Western Pacific Geophysics Meeting  1996 

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  • 不飽和土壌層内における土壌水・熱移動機構に関する実験的考察-ATESに関する基礎的研究(Ⅱ)

    諸泉利嗣, 堀野治彦, 丸山利輔

    平成2年度農業土木学会大会講演会  1990.7.25  (社)農業土木学会

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    Venue:名古屋市  

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  • 飽和土壌層内における熱移動特性の実験的考察-ATESに関する基礎的研究(Ⅰ)

    堀野治彦, 諸泉利嗣, 丸山利輔

    平成2年度農業土木学会大会講演会  1990.7.25  (社)農業土木学会

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    Venue:名古屋市  

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  • Experimental studies on Heat and Moisture Transfer in Saturated Soil Zone(jointly worked) International conference

    Western Pacific Geophysics Meeting  1990  米国地球物理学連合

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    Venue:金沢市  

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Awards

  • 平成21年度 農業農村工学会研究奨励賞

    2009.8   公益社団法人 農業農村工学会   土壌中の水分・物質の分布と移動に関する一連の研究

    諸泉利嗣

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    Country:Japan

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Research Projects

  • Development of sediment microbial fuel cells for improvement of water quality and reduction in greenhouse gas emissions in agricultural drainage canals

    Grant number:22H02458  2022.04 - 2025.03

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)  Grant-in-Aid for Scientific Research (B)

    前田 守弘, 仁科 勇太, 赤尾 聡史, 諸泉 利嗣

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    Grant amount:\17420000 ( Direct expense: \13400000 、 Indirect expense:\4020000 )

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  • 水溶性・非水溶性物質で汚染された土壌・地下水の熱・電気化学特性の解明と汚染度推定

    Grant number:20K12207  2020.04 - 2023.03

    日本学術振興会  科学研究費助成事業 基盤研究(C)  基盤研究(C)

    諸泉 利嗣

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    Grant amount:\4160000 ( Direct expense: \3200000 、 Indirect expense:\960000 )

    本年度は,非水溶性液体であるNAPL(Nonaqueous Phase Liquid)で汚染された飽和砂土を想定し,土壌中にNAPLと水が分離して存在する層構造の場合と分散状態で存在するランダム構造の2つの存在形態が誘電率と熱伝導率に与える影響について検討した.NAPLには,水よりも密度の小さいLNAPLと密度の大きいDNAPLを用いた.
    その結果,砂土-水-LNAPL(またはDNAPL)の飽和3相系の場合,誘電率を求めるためのTDR波形は,層構造に関しては,LNAPLでは2つのピークを示し,DNAPLではピークは1つであった.これは,LNAPLとDNAPLで水への溶解性が異なるためであると考えられた.一方,ランダム構造については,攪拌によって水・NAPLの界面が存在せず,波形のピークは1だけであった.また,誘電率は,LNAPLに比べてDNAPLの方が大きくなり,ランダム構造と層構造の比較では,ランダム構造のときの誘電率は,層構造のときに比べて小さくなった.熱伝導率については,LNAPLの方がDNAPLよりも大きくなり,ランダム構造のときの熱伝導率は層構造のときと比べて大きくなった.誘電率および熱伝導率推定モデルの適用性については,実験結果と推定モデルを比較することによって,誘電率はMD modelおよびα modelを用いることで,熱伝導率は小岩崎モデルおよび直列モデルを用いることで一定の精度で推定できることが分かった.
    水-NAPL-土壌の飽和3相系汚染土の汚染度を誘電率および熱伝導率という物理量を用いて推定する場合,NAPL含有量が同じであってもNAPLの存在形態によって各物理量の値が異なる可能性がある.このことから,NAPLの存在形態が各物理量に与える影響を事前に検討しておくことは極めて重要である.

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  • The search of the condition to maximize self-potential in the soil and development to soil battery

    Grant number:24658203  2012.04 - 2015.03

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Challenging Exploratory Research  Grant-in-Aid for Challenging Exploratory Research

    MOROIZUMI Toshitsugu, KADA Kazuki

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    Grant amount:\4030000 ( Direct expense: \3100000 、 Indirect expense:\930000 )

    This study clarified a condition to generate the greatest electric potential by measuring a self - potential in the soil under various conditions such as water fluxes, the difference of pressure heads, and soil properties. As a result, in the case of sandy soil, according to of the streaming potential theory, the generation of self - potential were proportion to the soil water fluxes, but, in the case of Kuroboku soils did not become so.

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  • Soil purification of amphiphilic contaminants

    Grant number:22380130  2010 - 2012

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)  Grant-in-Aid for Scientific Research (B)

    ISHIGURO Munehide, MOROIZUMI Toshitsugu, AHMED Farook, MORIGUCHI Kazuki, KOOPAL Luuk, AKAE Takeo

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    Grant amount:\16510000 ( Direct expense: \12700000 、 Indirect expense:\3810000 )

    Anionic surfactants which are the most used synthetic chemicals and discharged to the environment were investigated and detected the fundamental adsorption, decomposition and transport phenomena in a soil. Sodium dodecyl sulfate moved well at high concentration and decomposed well at low concentration in the soil. It is a good washing agent for contaminated soil. Sodium dodecyl benzene sulfonate decomposition is restricted when it is adsorbed in a soil. Further research is needed for its purification in soils.

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  • A study on effective desalinization method from low land agricultural field intruded by sea water

    Grant number:19380137  2007 - 2009

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)  Grant-in-Aid for Scientific Research (B)

    AKAE Takeo, MOROIZUMI Toshitsugu, MORITA Hidenori, ISHIGURO Munehide, HAMADA Hiromasa

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    Grant amount:\20020000 ( Direct expense: \15400000 、 Indirect expense:\4620000 )

    (1) A field research on damage in agricultural land by sea water invasion was conducted on case of 2004 Indian Ocean Tsunami. A method to predict the damaged area using satellite image and geological information was developed.
    (2) The fresh water ponding irrigation method was found most effective for desaliinization of the sea water invaded farm land by a field experiment.
    (3) A desalinization characteristics index(DCI) by ponding irrigation was proposed. The validity of the index was confirmed by a column experiment and a numerical simulation.
    (4) Water requirement for desalinization was mapped on a studied area using the index.
    (5) A scheme for optimum water allocation for desalinization of farm land on coastal area was developed

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  • The characteristics and modeling for the coupled flow of water, solutes, and heat in heterogeneous soils with an evaporative process

    Grant number:12660222  2000 - 2002

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)  Grant-in-Aid for Scientific Research (C)

    MOROIZUMI Toshitsugu, MIURA Takeshi

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    Grant amount:\3700000 ( Direct expense: \3700000 )

    In this study, we developed a sensor which measured simultaneously the moisture, solutes, and heat in soils, and conducted the measurement of heat balance and soil water dynamics in a heterogeneous sand field under the wet and dry conditions. Moreover, we simulated the dynamics of soil moisture and temperature in a sand field. The main results are follows :
    1) The thermo-TDR probe measurement system which can measure simultaneously the moisture, solutes, and heat in soils was developed. Moreover, a simple method of pF measurement was developed by combining TDR-Tensiometer with TDR-Hygrometer. The values measured by the TDR-Tensiometer were in good agreement with those of the ordinary methods, but the values measured by TDR-Hygrometer were not satisfactory.
    2) We measured an evapotranspiration in the sand field under wet and dry conditions, and conducted the simulations of soil water movement. It was clarified that the characteristics of evapotranspiration and that a water supply from lower layer of soil hardly occurred under wet condition. It was also shown that the numerical model had a limit of its application.
    3) The characteristics of spatial distribution and the time stability of sampling locations for sloping grassland filed were discussed using the field data obtained by 100 cm^3 core samplers. As a result, the variability of surface soil moisture decreased with an increase in water contents, and its distribution was led not to show the normal distribution with the decrease of water contents. The area-scale mean water contents at each area indicated that the mean water content at the low area was the highest, and that the surface soil moistures were different according to each area.

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  • The development of evapotranspiration for upland irrigation planning by the AMeDAS meteorolgical data

    Grant number:11660243  1999 - 2001

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)  Grant-in-Aid for Scientific Research (C)

    MIURA Takeshi, MOROIZUMI Toshitsugu

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    Grant amount:\3400000 ( Direct expense: \3400000 )

    A reference evapotransipiration that is the most important factor in upland field irrigation is calculated by the Penman's method using the meteorological data. There are about 840 weather stations in Japan where air temperature, solar radiation, and so on are measured. Those data have been measured for about 20 years since the start of AMeDAS measurement and can be used for the Penman' equation. The objective of this study was to develop a database on the hard disk in a computer to take out the necessary data from the database. The user can select the target observation location, meteorological factors, and the observation term and can calculate the average values, the cumulative values, and the reference evaporation by Penman's equation. Those results are output into a data file and displayed as a contour map or a plot of equi-values. The system program was coded by a Microsoft Visual Basic language.
    On the other hand, the crop coefficient is needed to estimate the actual evapotranspiration using a reference evapotranspiration calculated by the Penman's equation. In Japan, there are few data of crop coefficients for various kinds of crops, and therefore it is needed to measure much more data for the detailed upland irrigation planning. Dr. Miura who is a head investigator has measured the evapotranspiration at different upland fields using the micrometeorological method and rearranged those results as crop coefficients. Furthermore, he has set up the long-term measurement system of radiation balance to test the predictive equation of net radiation based on measured values. The differences of sunshine duration due to the different instruments of heliograph have reported, however, the result for the predictive equation of net radiation has not reported.
    In this report, some papers that have already been published are classified into four categories, that is, the relationship between AMeDAS and Penman's equation, the measurement of micrometeorology in upland field, the upland field irrigation, and the meteorological environment. More papers will be published in the future.

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  • Studies on the macropore morphology of grassland soil determined by X-ray and contrast media.

    Grant number:06660083  1994 - 1995

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for General Scientific Research (C)  Grant-in-Aid for General Scientific Research (C)

    SATO Koichi, MORIZUMI Toshitugu, SATO Yuichi

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    Grant amount:\2100000 ( Direct expense: \2100000 )

    The purpose of this study is to examine the morphology of macropores in the grassland soils. The morphology of macropores was studied on the universal of the pore formed by roots (rooted pore), the actual condition, the formative period of the pore formed by roots, and pore formed by particles and aggregates. Soil samples were collected from seven domestic and overseas soils. The macropore of particles and aggregates was from quartz sand, glass beads, grain of Andsol, aggregates of the Andsol, and aggregates of earthworm. The morphology of pores showed that the shap of almost all macropores is the rooted pore in the permanent grassland.
    The pores formed by particles and aggregates were consisted of inter-particles and inter-aggregates, that morphology was a globular form or a rod-shaped form. The Pores formed by aggregates of the earthworm were network structure of the spongy body. In the drainage and water-retention zone, the macropore was consisted of the rooted pore except under the influence of the earth-worm and weather. The morphology of the non-capillary pores observed the rooted pore in the dense and solid sur-face soil layr in Andosol, heavy clay, and steppe soil. The pore direction was in the horizontal and slant in rootmat of the sur-face soil layr, but the sub sur-face soil and subsoil layr is not clear in the steppe soil and brown forest soil in England. The morphology of the capillary pores was shaped by the rooted pore, inter-particles and inter-aggregates in the density and sandy each surface soil layr. The sub sur-face soil layr and subsoil layr were consisted all inter-particles and inter-aggregates in the sandy soil. In the clay soil, all the morphology of macropores was shaped by the rooted pore. The formative period of the rooted pore was for three years. The macropores of the grassland soil consisted mainly of the rooted pore formed by plant roots, that was universal phenomenon in the grassland soil.

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  • 草地生育環境下におけるスラリー散布後の地温と物質の動態に関する実証的研究

    Grant number:06760218  1994

    日本学術振興会  科学研究費助成事業 奨励研究(A)  奨励研究(A)

    諸泉 利嗣

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    Grant amount:\1000000 ( Direct expense: \1000000 )

    本研究では,草地とその対照区である裸地にスラリーを散布し,スラリーが日射,降水、地温,土壌水分などの影響を受けながらどのような挙動を示し,地下水帯に浸入するかを明らかにするとともに,スラリーの散布により地温や土壌水分,蒸発量の変動特性がどのように変化するかを実験的に明らかにしようとした。
    2台の土壌カラムを準備し,一方は地表面を草地に,他方は裸地状態とし,それぞれのカラムに同量のスラリーを散布し,測定を行った。研究成果の概要は,以下の通りである。
    1.カラム下端から排水された水のEC値は,草地カラムに比べて裸地カラムの方が大きかった。このことより,スラリーが草地表面及び根群域に貯留されていると推察された。
    2.スラリーの散布による蒸発量の変化は,草地カラム・裸地カラムともに,今回の実験では顕著な差は見られなかった。
    3.カラム下端からの排水量が,スラリーの散布回数を増すにつれて,減少した。これは,スラリーの有機物成分により土壌間隙が目詰まりを起こしたためであると考えられる。
    今後の展開としては,
    (1)土壌環境の違い(草地と裸地)を考慮して,地温と土壌水,物質の同時移動モデルを作成し,実験結果を用いてモデルのパラメータを決定し,シミュレーションを行う。
    (2)実験結果とシミュレーション結果を比較することにより,土壌環境の違い地温と土壌水分,物質の動態に与える影響を検討する。

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  • The movements of the soil water and animal surrey in the sloping upland after the rain-fall.

    Grant number:03454092  1991 - 1992

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for General Scientific Research (B)  Grant-in-Aid for General Scientific Research (B)

    SATO Yuichi, MOROIZUMI Tugutosi, SATO Koichi

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    Grant amount:\2100000 ( Direct expense: \2100000 )

    In the sloping upland, we spread the animal surrey, and investigated the movement of the soil water, runoff water and respective ions after the rain-fall.
    The resulst have been summarized as follows.
    (1) The rain-fall in the sloping upland, at fast, the soil water potential increased in the low regions, and secondly in the high regions.
    (2) The runoff percentages were in range of 20-50 percentages.
    (3) The movements of K ion was the most remarkable, Nitric acid was evident and ammonia nitrogen was apparent.
    (4) All salts in the runoff of the rain were under one percentage.

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  • 異なる土壌環境下における熱と土壌水の移動機構に関する基礎的研究

    Grant number:03760162  1991

    日本学術振興会  科学研究費助成事業 奨励研究(A)  奨励研究(A)

    諸泉 利嗣

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    Grant amount:\700000 ( Direct expense: \700000 )

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    私を取り巻く水環境:地水環境と蒸発散

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