Updated on 2021/07/12

写真a

 
SOMURA Hiroaki
 
Organization
Environmental and Life Science Associate Professor
Position
Associate Professor
External link

Degree

  • 博士(農学) ( 東京農工大学 )

Research Interests

  • Irrigation and Drainage

  • Water Quality

  • Watershed Management

  • Rural Engineering

  • 水文学

  • Hydrology

Research Areas

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

Research History

  • Okayama University   環境生命科学研究科(農村環境創成学講座)   Associate Professor

    2018.4

      More details

  • Shimane University   Faculty of Life and Environmental Science   Associate Professor

    2010.7 - 2018.3

      More details

  • 日本学術振興会優秀若手研究者海外派遣事業(Texas A&M University System,Texas A&M AgriLife Research-Blackland Research & Extension Center)   客員研究員

    2010.4 - 2011.3

      More details

  • Shimane University   Faculty of Life and Environmental Science   Assistant Professor

    2007.4 - 2010.6

      More details

  • Shimane University   Faculty of Life and Environmental Science   Research Assistant

    2005.3 - 2007.3

      More details

  • (独)農業工学研究所   特別研究員

    2003.4 - 2005.2

      More details

▼display all

 

Papers

  • Environmental flow sustainability in the Lower Limpopo River Basin, Mozambique Reviewed International coauthorship International journal

    Osvaldo Silva Zefanias Nhassengo, Hiroaki Somura, June Wolfe III

    Journal of Hydrology: Regional Studies   36   100843   2021.8

     More details

    Authorship:Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Elsevier  

    DOI: 10.1016/j.ejrh.2021.

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

    Vo Ngoc Quynh Tram, Hiroaki Somura, Toshitsugu Moroizumi

    Water   13 ( 5 )   627   2021.2

     More details

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

    DOI: 10.3390/w13050627

  • Developing a hydro-chemical model of Ise Bay watersheds and the evaluation of climate change impacts on discharge and nitrate-nitrogen loads Reviewed

    Takeo Onishi, Jun Yoshino, Ken Hiramatsu, Hiroaki Somura

    Limnology   21 ( 3 )   465 - 486   2020.8

     More details

    Publishing type:Research paper (scientific journal)  

    © 2020, The Japanese Society of Limnology. The objective of this study was to develop a hydro-chemical model using the Soil and Water Assessment Tool (SWAT) and to evaluate the climate change impacts on discharge and nitrate-nitrogen loads from Ise Bay watersheds (the Kiso, Nagara, Ibi, and Shonai rivers). Using a regional climate model, through the dynamic downscaling approach, present and future climate data were generated at a 2 km spatial resolution. The pseudo-global warming downscaling approach under the A1B scenario was adopted for future climate prediction. Then, the optimized SWAT model, driven by the present and future climate data, was executed. The following results were obtained: (1) the significant increase of precipitation in May and June and decrease in August in the future climate scenario, and consequent discharge from the target watersheds also increased in May and June and decreased in August and September; (2) Due to the change in discharge, nitrate-nitrogen loads of the Kiso, Nagara, and Ibi rivers also increased in May and June and decreased in August and September; and (3) While nitrate-nitrogen load from deciduous forest tends to decrease, the one from evergreen forest tends to increase. The response of the model indicated the possibility of an increase in nitrogen uptake by deciduous forests.

    DOI: 10.1007/s10201-020-00622-2

    Scopus

    researchmap

  • Assessment of soil erosion in social forest-dominated watersheds in Lampung, Indonesia Reviewed

    Rahmah Dewi Yustika, Hiroaki Somura, Slamet Budi Yuwono, Bustanul Arifin, Hanung Ismono, Tsugiyuki Masunaga

    Environmental Monitoring and Assessment   191 ( 12 )   2019.12

     More details

    Publishing type:Research paper (scientific journal)   Publisher:Springer Science and Business Media {LLC}  

    DOI: 10.1007/s10661-019-7890-5

    researchmap

  • Impact of Human Activities and Natural Processes on the Seasonal Variability of River Water Quality in Two Watersheds in Lampung, Indonesia Reviewed

    Rahmah Dewi Yustika, Hiroaki Somura, Slamet Budi Yuwono, Tsugiyuki Masunaga

    Water   11 ( 11 )   2363 - 2363   2019.11

     More details

    Publishing type:Research paper (scientific journal)   Publisher:{MDPI} {AG}  

    DOI: 10.3390/w11112363

    researchmap

  • Evaluation of the effects of climate change on field-water demands using limited ground information: a case study in Balkh province, Afghanistan Reviewed

    Abdullah Jami, Masahiro Tasumi, Thomas Michael Mosier, Hiroaki Somura, Toru Konishi

    Irrigation Science   37 ( 5 )   583 - 595   2019.9

     More details

    Publishing type:Research paper (scientific journal)  

    © 2019, Springer-Verlag GmbH Germany, part of Springer Nature. Climate change is a significant global issue that will affect regional agriculture and water management of irrigation supplies. In this study, we project climate change impacts on water and irrigation requirements for major crops—wheat, cotton, and apricots—in Balkh province, Afghanistan. The methodology utilizes satellite imagery to overcome limitations in ground measurements necessary to understand current crop conditions and cultivation schedules for the study site. The climate model-averaged results project an increasing trend in both crop water and irrigation requirements for the study area, with larger trends for the climate model and scenario combinations that project the largest temperature increases. Future trends in the year-to-year variability of field water requirements do not contain a clear trend for most crops. The magnitude of projected changes vary significantly between individual climate models, demonstrating the importance of applying multiple climate models to project future conditions in agricultural water management. The results demonstrate the efficacy of using globally available data, including satellite imagery and global climate model information, to overcome lack of in situ observations. The findings also highlight challenges to current agricultural paradigms in areas such as Afghanistan that are arid to semi-arid and do not have adequate irrigation infrastructure.

    DOI: 10.1007/s00271-019-00638-2

    Scopus

    researchmap

  • Impacts of hydrological changes on nutrient transport from diffuse sources in a rural river basin, western Japan Reviewed International journal

    J. Ide, I. Takeda, H. Somura, Y. Mori, Y. Sakuno, Y. Yone, E. Takahashi

    Journal of Geophysical Research - Biogeosciences   2019.8

  • Importance of considering nutrient loadings from small watersheds to a lake – A case study of the Lake Shinji watershed, Shimane Prefecture, Japan Reviewed

    Somura H, Kunii H, Yone Y, Takeda I, Sato H

    International Journal of Agricultural and Biological Engineering   11 ( 5 )   124 - 130   2018

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    researchmap

  • Relationship between water quality variations and land use in the Batutegi Dam Watershed, Sekampung, Indonesia (published online) Reviewed

    Somura H, Yuwono SB, Ismono H, Arifin B, Fitriani F, Kada R

    Lakes & Reservoirs   1 - 9   2018

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    researchmap

  • Behavior of dissolved organic matter in the two rivers inflowing to Lakes Shinji and Nakaumi Reviewed

    Sugitani Y, Somura H, Takeda I

    Laguna   23   47 - 58   2017.3

  • 酸化鉄を含む底質の堆積が観察される水田群における鉄とリンの挙動と物質収支 Reviewed

    武田育郎, 高田竜之介, 宗村広昭, 佐藤裕和

    農業農村工学会論文集   301   57 - 63   2016

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.11408/jsidre.84.I_57

    researchmap

  • Characteristics and potential usage of dissolved silica in rice cultivation in Sumani Watershed, Sumatra, Indonesia Reviewed

    Somura H, Darmawan, Sato K, Ueno M, Husnain, Aflizar, Masunaga T

    Pertanika Journal of Tropical Agricultural Science   39 ( 4 )   601 - 615   2016

  • The Relationship between Examination Scores and the Timing of Lecture Video Viewing in a Flipped Classroom Plan Reviewed

    Somura H, Kazumi D, Omata K

    Japan Journal of Educational Technology   40 ( Suppl. )   9 - 12   2016

     More details

    Publisher:日本教育工学会  

    DOI: 10.15077/jjet.s40007

    researchmap

    Other Link: http://orcid.org/0000-0002-2592-7174

  • Hydrological Effects on Relationships Between N-15 of River Nitrate and Land Use in a Rural River Basin, Western Japan Reviewed

    J. Ide, H. Somura, T. Nakamura, Y. Mori, I. Takeda, K. Nishida

    RIVER RESEARCH AND APPLICATIONS   31 ( 5 )   639 - 649   2015.6

     More details

    Language:English   Publishing type:Research paper (scientific journal)   Publisher:WILEY-BLACKWELL  

    This study aimed to examine how the relationship between N-15 of nitrate (N-15(NO3)) in rivers and land use within a river basin changes with varying hydrological conditions. This information would aid in identifying the dominant source contributing to increased nitrate concentrations in rural rivers. For this, N-15(NO3) in river water was investigated monthly in the five subbasins of the Hii River basin (area: 911km(2)), western Japan, for 1year and 3months. There were significant correlations (p<0.05) between N-15(NO3) and the land-use ratio (i.e. ratios of forested, agricultural and residential areas in a subbasin) for the majority of the observation days, indicating that N-15(NO3) reflected land use within the basin. N-15(NO3) ranged from +1.4 parts per thousand to +8.5 parts per thousand and was lower in a subbasin with a higher forested area ratio. We found that the absolute value of the regression slope of the relationship between N-15(NO3) and the land-use ratio decreased with increasing river discharge. This finding demonstrates that differences in N-15(NO3) among subbasins with different land-use compositions became smaller under higher flow conditions. Because N-15(NO3) decreased with increasing river discharge, the small absolute value of the regression slope under high flow conditions indicates that forested areas could be the dominant source of river nitrate during high flows in all subbasins investigated regardless of land-use composition. The results suggest that forested areas make a large contribution to the increase in nitrate concentration in downstream rivers during high flows, because the nitrate concentration increased with increasing river discharge. Copyright (c) 2014 John Wiley & Sons, Ltd.

    DOI: 10.1002/rra.2756

    Web of Science

    researchmap

  • Estimation of nutrient input by a migratory bird, the Tundra Swan (Cygnus columbianus), to winter-flooded paddy fields Reviewed

    Hiroaki Somura, Tsugiyuki Masunaga, Yasushi Mori, Ikuo Takeda, Jun'ichiro Ide, Hirokazu Sato

    AGRICULTURE ECOSYSTEMS & ENVIRONMENT   199   1 - 9   2015.1

     More details

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

    Thousands of Tundra Swans visit winter-flooded paddy fields in the study area, Yasugi city, Shimane Prefecture, Japan every year for overwintering from November to March. Since 2004, they have roosted in the paddy fields during the night and foraged in the paddy and surrounding fields during the day, coinciding with the time when farmers began using winter-flooded paddy fields. Before 2004, the swans visited the area for foraging during the day and roosted at nearby lakes, wetlands, and sandbars along rivers during the night. When the swans visited our target paddy fields, the water gradually became green and began to emit an ammonia-like odor. In this study, we investigated the changes in the water qualities of winter-flooded paddy fields and the influence of bird excrement on water quality in the paddy fields during winter, and then estimated the amounts of nitrogen (N) and phosphorus (P) provided by bird droppings to the paddy fields. The mean concentrations of N, P, suspended sediment, and total organic carbon were higher in the overwintering season than during the irrigation season. This trend was observed in both the first and second seasons of the study. The spatial distribution of electric conductivity (EC) measured using a GEM-2 broad-band electromagnetic sensor coincided with that of the matted sites of Tundra Swans in the paddy field, which indicated that the excrement of the swans affected the EC distribution. The total input amounts of N and P from the birds' excrement to the flooded paddy fields were estimated using a simple model that considered bird counts and probable nutrient content of feces, and the amounts were found to be equivalent to approximately 30% of those present in the standard fertilizers used for rice during the irrigation period. These results suggested that the excrement from the swans markedly influences the water qualities of winter-flooded paddy fields. (C) 2014 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.agee.2014.07.018

    Web of Science

    Scopus

    researchmap

    Other Link: http://orcid.org/0000-0002-2592-7174

  • Challenges to Establishing Environmental Resource Recycling Society after Texas Water Environment Project International journal

    森 也寸志, 宗村 広昭, ウォルフ ジューン

    水土の知 : 農業農村工学会誌   83 ( 1 )   7 - 10   2015.1

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:農業土木学会  

    CiNii Article

    researchmap

  • 流域水質保全計画におけるSWATモデルの利活用に関する展望 International journal

    加藤亮, 宗村広昭

    水環境学会誌   37 ( 7 )   2014.7

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    researchmap

  • 斐伊川流域における確率渇水流量の経年変動解析 Reviewed

    佐藤 裕和, 武田 育郎, 宗村 広昭

    日本雨水資源化システム学会誌   19 ( 2 )   51 - 55   2014.1

     More details

  • 鉄バクテリア集積物による自然水域からのリン回収における木炭の可能性 Reviewed

    武田育郎, 山根達弘, 宗村広昭, 佐藤裕和, 深田耕太郎

    農業農村工学会論文集   289   55 - 56   2014

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.11408/jsidre.82.55

    researchmap

  • Improving water quality in the Nile Delta irrigation network by regulating reuse of agricultural drainage water Reviewed

    Khater, A, Kitamura, Y, Shimizu, K, Somura, H, Abou El, Hassan, W.H

    Food, Agriculture and Environment   12 ( 3-4 )   329 - 337   2014

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    researchmap

  • Evaluation of management practices in forest soil environments using a multi-frequency electromagnetic sounding system Reviewed

    124 ( 124 )   17 - 24   2013.7

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    CiNii Article

    CiNii Books

    researchmap

    Other Link: https://agriknowledge.affrc.go.jp/RN/2010853115

  • SWATモデルの水田を含む流域への適用の問題点と改善に向けて Reviewed

    加藤亮, 渡邊裕純, Julien Boulange, 江口定夫, 坂口敦, 宗村広昭

    農業農村工学会誌   81 ( 12 )   983 - 987   2013

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    researchmap

  • Impact of suspended sediment and nutrient loading from land uses against water quality in the Hii River basin, Japan Reviewed

    H. Somura, I. Takeda, J. G. Arnold, Y. Mori, J. Jeong, N. Kannan, D. Hoffman

    JOURNAL OF HYDROLOGY   450   25 - 35   2012.7

     More details

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

    Lake Shinji lies in eastern Shimane Prefecture, and is typical of brackish lakes in Japan. Water quality of the lake does not meet the expected environmental standards for total nitrogen (TN) and total phosphorus (TP), even though the national and prefectural governments have tried to improve water quality by developing maintenance scenarios for sewage, plant effluent, agricultural activity, and forestry. Consequently, detailed data of nutrient loading to the lake from river inflows is crucial to support strategies for improving the lake water environment. The Hii River contributes approximately 80% of the discharge flowing into the lake. In this study, we examine the Hii River catchment with a focus on land uses such as paddy fields, upland fields, residential areas, and forestry. Average annual discharges of suspended sediment (SS), TN, and TP loads were determined at Otsu, near the outlet of the basin into Lake Shinji. We also determined average yield per unit area of SS, TN, and TP loads from each land use. Yields per unit area from upland areas were the greatest, whereas yields from forests were the lowest. Forests were the largest contributor of SS, TN, and TP in the basin, because of its dominant land area. Upland fields had the second largest impact on these loads in the basin, because fertilizer applied to the fields is a major source of nitrogen (N) and phosphorus (P). large differences in yields per unit area between fine and rainy day conditions were also observed, especially for SS and TP loads. Furthermore, we determined that a major pathway of N to the river was through groundwater, regardless of land use, whereas P was transported to the river with sediments, especially in paddy and upland fields. Based on these analyses, it will be difficult to reduce the SS load discharge in the basin in the future, because forestry is the major source. In contrast, N and P load reductions are straightforward, because the primary source is agricultural, and appropriate management of fertilizer application will be a key factor in reducing loads. (c) 2012 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.jhydrol.2012.05.032

    Web of Science

    Scopus

    researchmap

    Other Link: http://orcid.org/0000-0002-2592-7174

  • 斐伊川流域における確率水文量の経年変化 Reviewed

    佐藤裕和, 武田育郎, 宗村広昭

    土木学会論文集B1(水工学)   68 ( 4 )   1387 - 1392   2012

     More details

  • 島根県隠岐の島町スギ人工林における間伐の現状 Reviewed

    高橋絵里奈, 米康充, 森也寸志, 宗村広昭, 井手淳一郎, 佐藤利夫, 竹内典之

    森林応用研究   21 ( 2 )   9 - 16   2012

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.20660/applfor.21.2_9

    researchmap

  • Simulation of nutrients from an agricultural watershed in Japan using the SWAT model Reviewed

    T. Kato, H. Somura, H. Kuroda, H. Nakasone

    International Agricultural Engineering Journal   20 ( 3 )   40 - 49   2011

     More details

  • 強雨が森林流域における土壌浸透水の水質へ及ぼす影響 Reviewed

    森澤太平, 森也寸志, 井手淳一郎, 宗村広昭, 武田育郎, 井上光弘

    雨水資源化システム学会誌   16 ( 2 )   61 - 67   2011

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.7132/jrcsa.KJ00007225460

    researchmap

  • 鉄バクテリアと木質バイオマスによる面源のリン負荷削減と循環利用 International journal

    武田育郎, 宗村広昭, 佐藤裕和

    用水と排水   53 ( 12 )   961 - 967   2011

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    researchmap

  • Recovery of phosphorus from natural water bodies using iron-oxidizing bacteria and woody biomass Reviewed

    Ikuo Takeda, Hiroaki Somura, Yasushi Mori

    ECOLOGICAL ENGINEERING   36 ( 8 )   1064 - 1069   2010.8

     More details

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

    There is a global concern that phosphorus (P) resources will be depleted in the near future, but the P flux from water to land is extremely limited, whereas the reverse flux is substantial. A new method for the recovery of P from natural water bodies was proposed using iron-oxidizing bacteria and woody biomass (heartwood of conifer) as a carrier and a practical demonstration was presented. The woody carrier was immersed in water abundant in iron-oxidizing bacteria and removed 1-10 weeks later. Our results showed that the immersed carrier collected biogenic iron (Fe) oxides produced by iron-oxidizing bacteria, and contained about 0.2 mg g(-1) of P after 3 weeks; this amount was higher than that contained in some P fertile soils used for cultivating plants. The biogenic Fe oxides on the carrier acted as a source of P for plant cultivation, and they could adsorb P from P-rich solutions (10 mg L(-1) of PO(4)-P). Although our study involved only a small-scale trial, the proposed method can potentially aid in the effective use of Pin water and in water quality improvement if conducted on a large scale. (C) 2010 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.ecoleng.2010.04.019

    Web of Science

    researchmap

  • A land use planning recommendation for the Sumani watershed, West Sumatra, Indonesia Reviewed

    Aflizar, Saidi, A, Husnain, Ismawardi, Bambang Istijono, Harmailis, Somura, H, Wakatsuki, T, Masunaga, T

    Tropics   19 ( 1 )   43 - 51   2010

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.3759/tropics.19.43

    researchmap

  • 降雨強度と雨水の水質が土壌浸透流出水の水質へ及ぼす影響 Reviewed

    森澤太平, 森也寸志, 井手淳一郎, 宗村広昭, 武田育郎, 井上光弘

    土壌の物理性   114   3 - 10   2010

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    researchmap

  • Soil erosion characterization in an agricultural watershed in West Sumatra, Indonesia Reviewed

    Aflizar, Saidi, A, Husnain, Indra, R, Darmawan, Harmailis, Somura, H, Wakatsuki, T, Masunaga, T

    Tropics   19 ( 1 )   29 - 42   2010

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.3759/tropics.19.29

    researchmap

  • Influence of puddling procedures on the quality of rice paddy drainage water Reviewed

    Hiroaki Somura, Ikuo Takeda, Yasushi Mori

    AGRICULTURAL WATER MANAGEMENT   96 ( 6 )   1052 - 1058   2009.6

     More details

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

    Drainage water quality in rice paddies was strongly influenced by the puddling of soil in the paddy fields by tractors and in response to opening of drainage gates. The concentrations of contaminants in drainage water increased rapidly when the puddling process began and were maintained at high concentrations throughout the puddling period. Moreover, the high concentrations did not decrease immediately after the puddling procedures ceased. Additionally, the ratio of dissolved nitrogen and phosphorous to total nitrogen and total phosphorous increased daily during the last half of the puddling period, due to discharge of chemical fertilizers with the drainage water. Also, the loads of particulate nitrogen and phosphorus discharged during the puddling period were larger than the loads discharge during irrigation. The discharge from paddy fields during puddling also increased the total annual contaminant load. (C) 2009 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.agwat.2008.12.005

    Web of Science

    researchmap

  • Influence of puddling procedures on the quality of rice paddy drainage water Reviewed

    Hiroaki Somura, Ikuo Takeda, Yasushi Mori

    AGRICULTURAL WATER MANAGEMENT   96 ( 6 )   1052 - 1058   2009.6

     More details

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

    Drainage water quality in rice paddies was strongly influenced by the puddling of soil in the paddy fields by tractors and in response to opening of drainage gates. The concentrations of contaminants in drainage water increased rapidly when the puddling process began and were maintained at high concentrations throughout the puddling period. Moreover, the high concentrations did not decrease immediately after the puddling procedures ceased. Additionally, the ratio of dissolved nitrogen and phosphorous to total nitrogen and total phosphorous increased daily during the last half of the puddling period, due to discharge of chemical fertilizers with the drainage water. Also, the loads of particulate nitrogen and phosphorus discharged during the puddling period were larger than the loads discharge during irrigation. The discharge from paddy fields during puddling also increased the total annual contaminant load. (C) 2009 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.agwat.2008.12.005

    Web of Science

    Scopus

    researchmap

    Other Link: http://orcid.org/0000-0002-2592-7174

  • Impact of climate change on the Hii River basin and salinity in Lake Shinji: a case study using the SWAT model and a regression curve Reviewed

    H. Somura, J. Arnold, D. Hoffman, I. Takeda, Y. Mori, M. Di Luzio

    HYDROLOGICAL PROCESSES   23 ( 13 )   1887 - 1900   2009.6

     More details

    Language:English   Publishing type:Research paper (scientific journal)   Publisher:WILEY-BLACKWELL  

    The impacts of climate change oil water resources were analysed for the Hii River basin and downstream Lake Shinji. The variation between saline and fresh water within these systems means that they encompass diverse ecosystems. Changes in evapotranspiration (ET), snow water equivalent, discharge into the basin, and lake salinity were determined for different climate scenarios. The impact of climate change on a brackish water clam found in the lake was then examined using simulated monthly variations of lake salinity and information from prior Studies of the clam.
    ET increased and snow water equivalent decreased for all scenarios incorporating temperature rise, particularly during the winter season. Furthermore, ET and snow water equivalent were not as sensitive to variations in precipitation and thus temperature rise was considered to be a major factor for these variables. Nevertheless, monthly discharge Volume was more influenced by variation in precipitation than variations in temperature. Discharge increased during both the summer and winter season, since precipitation contributed to river discharge instead of being stored as snow pack during the winter season. The magnitudes of salinity dilutions and concentrations predicted under the climate change scenarios Would not be lethal for adult clams. However, the egg-laying season of the clam would coincide with periods of strong salinity dilution in the lake. Since juveniles are less tolerant to changes in salinity, future generations of the clam may be affected and reproduction of the clam may be reduced by increasing precipitation in the future. Copyright (C) 2009 John Wiley & Sons, Ltd.

    DOI: 10.1002/hyp.7321

    Web of Science

    Scopus

    researchmap

    Other Link: http://orcid.org/0000-0002-2592-7174

  • 間伐遅れの針葉樹人工林における水文流出の特徴とその長期変動 Reviewed

    武田育郎, 福島晟, 宗村広昭

    農業農村工学会論文集   263   41 - 48   2009

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.11408/jsidre.77.509

    researchmap

  • 間伐遅れの針葉樹人工林における水文特性とタンクモデル定数との関係 Reviewed

    戸田政仁, 武田育郎, 宗村広昭, 井手淳一郎

    応用水文   21   1 - 9   2009

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    researchmap

  • Long-term trends in water quality in an under-populated watershed and influence of precipitation Reviewed

    Takeda, I, Fukushima, A, Somura, H

    Journal of Water and Environment Technology   7 ( 4 )   293 - 306   2009

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.2965/jwet.2009.293

    researchmap

  • Sensitivity analyses of hydrologic and suspended sediment discharge in the abashiri river basin, hokkaido region, Japan Reviewed

    Somura H, Takeda I, Mori Y

    International Agricultural Engineering Journal   18 ( 1-2 )   27 - 39   2009

  • 谷津農業集水域における降雨時の硝酸態窒素流出特性 Reviewed

    加藤亮, 宗村広昭, 大澤和敏, 黒田久雄

    農業農村工学会論文集   261   49 - 55   2009

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.11408/jsidre.77.281

    researchmap

  • Impacts of nutrient management and decrease in paddy field area on groundwater nitrate concentration: a case study at the Nasunogahara alluvial fan, Tochigi Prefecture, Japan Reviewed

    Hiroaki Somura, Akira Goto, Hiroyuki Matsui, Elhassan Ali Musa

    HYDROLOGICAL PROCESSES   22 ( 24 )   4752 - 4766   2008.11

     More details

    Language:English   Publishing type:Research paper (scientific journal)   Publisher:JOHN WILEY & SONS LTD  

    In order to help evaluate the trends in the NO(3)-N concentration in groundwater with a view to preventing further degradation in water quality in the future, a distributed groundwater quality model was constructed tor the Nasunogahara basin. The best fit for the groundwater table elevations by the flow component of the model was achieved with average mean absolute errors (MAEs) of 0.92 m for the calibration period and 0-83 in for the validation period. Moreover. the best fit for the NO(3)-N concentration by the water quality component was achieved with average mean relative errors (MREs) of 29-8% for the calibration period and 30.3% for the validation period. After developing a robust model. various change scenarios were tested specifically. the effects of effluent load control and a decrease in paddy field area on the NO(3)-N concentration in groundwater were predicted. The most intensively farmed area contributed about 40% of the total effluent load because of livestock fanning ill the basin. When the effluent load from this area was decreased by 50%, the average NO(3)-N concentrations at sites S1, S2 and S3 were reduced by about 15%: however, the average concentrations at S4 and S5 were reduced by only 1%. Furthermore. when the total effluent load from the concentrated livestock area was removed completely, the average groundwater NO(3)-N concentrations at SI, S2 and S3 were reduced by about 30% as compared with the original calculated results. In contrast. decreasing the area of the paddy fields in the basin did not greatly influence the groundwater NO(3)-N concentration. In the case of a 70% reduction in paddy field area, average NO(3)-N concentrations increased by about 7% at S1. S2 and S3. Copyright (C) 2008 John Wiley & Soils, Ltd.

    DOI: 10.1002/hyp.7089

    Web of Science

    Scopus

    researchmap

    Other Link: http://orcid.org/0000-0002-2592-7174

  • Decadal fluctuations in the consumption of irrigation water during the rainy season, Lower Mekong River Reviewed

    Hiroaki Somura, Koshi Yoshida, Hajime Tanji

    HYDROLOGICAL PROCESSES   22 ( 9 )   1310 - 1320   2008.4

     More details

    Language:English   Publishing type:Research paper (scientific journal)   Publisher:WILEY  

    The importance of proper water management means that the consumption of irrigation water should be estimated even in areas where data are scarce. The Mekong River, particularly the lower part, is one area where irrigation water has received little research attention. Studies that seek to estimate the use of irrigation water in this area are restricted by a lack of hydrological data; consequently, alternative methods are required to obtain these data. One solution is the use of model simulations. The main difference between our approach and existing irrigation-water estimation models is that we consider agricultural data in estimating the use of irrigation water, especially that used for rice production, as these data are relatively easy to collect. As a result, rice production during the rainy season in the target area was computed for 10 years with errors of less than 30%. The average values of calculated and observed rice yields per hectare were 1.3 and 1.7 t/ha in Thailand, 2.5 and 2.7 t/ha in Lao PDR, and 1.2 and 1.3 t/ha in Cambodia, respectively. In addition, we clarified decadal fluctuations in horizontal supplied (HS) water and irrigation water. The average values of HS water supplied to the paddy fields during the simulation period were approximately 17.2 km(3)/rainy season in Thailand (388 mm), 0-81 km(3)/rainy season in Lao PDR (245 mm), and 4.4 km(3)/rainy season in Cambodia (322 mm). Comparisons with HS water (7.4 km3/rainy season) and the existing requirements for irrigation water revealed that the simulation yielded acceptable values, thus verifying the reproducibility of the model results. Finally, we calculated the average water balances during the growth period for rice. The highest amount of irrigation water per unit irrigated area during the rainy season was used in Lao PDR, though the volume of irrigation water was greatest in Thailand. Copyright (C) 2008 John Wiley & Sons, Ltd.

    DOI: 10.1002/hyp.6940

    Web of Science

    Scopus

    researchmap

    Other Link: http://orcid.org/0000-0002-2592-7174

  • Spatial distribution of water quality and load units in the Iinashi River basin, Shimane Prefecture, Japan Reviewed

    H. Somura, D. Nakayama, M. Aizaki, Y. Seike, M. Okumura, K. Nishikata

    2   15 - 24   2008

     More details

    Authorship:Lead author, Last author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    researchmap

  • 多周波電磁探査法による土壌環境モニタリング Reviewed

    平井優也, 森也寸志, 宗村広昭, 江草直和, 森澤太平

    土壌の物理性   109   3 - 14   2008

     More details

  • 間伐材と鉄バクテリアを用いた自然水域からのリン回収とその農業利用 International journal

    武田育郎, 宗村広昭

    環境技術   37 ( 5 )   347 - 351   2008

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.5956/jriet.37.347

    researchmap

  • 土壌浸透水採取による山林斜面における面源負荷の形成過程の解明, International journal

    森 也寸志, 宗村広昭, 武田育郎

    環境技術   37 ( 11 )   1 - 6   2008

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    researchmap

  • Development of Irrigation Water Allocation Model considering Gate Operator Density, in Northeast Thailand Reviewed

    Katsuhiro Higuchi, Osamu Toda, Koshi Yoshida, Hiroaki Somura, Hajime Tanji

    水文・水資源学会誌   20 ( 3 )   167 - 190   2007

  • 管理状態の異なる森林からの集中豪雨に伴う汚濁負荷流出特性-土壌浸透水直接採取からの観察- Reviewed

    森澤太平, 森也寸志, 江草直和, 宗村広昭, 井上光弘

    応用水文   20   11 - 20   2007

     More details

  • Hydro-meteorological observation and analysis of observed data at Tonle Sap Lake and its environs, urban and paddy areas Reviewed

    Takao Masumoto, Kumiko Tsujimoto, Hiroaki Somura

    206   219 - 236   2007

     More details

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

    researchmap

  • 水田地区に生息する魚類に影響を及ぼす環境因子 Reviewed

    西村圭市, 武田育郎, 福島晟, 宗村広昭

    雨水資源化システム学会誌   12 ( 1 )   11 - 16   2006

  • 河畔林葉面積指数の季節変動を考慮した日射遮断機能のモデル化 Reviewed

    吉田貢士, 塩沢昌, 戸田修, 宗村広昭, 丹治肇

    水工学論文集   51   1225 - 1230   2006

  • 夏季の農業排水路における水生動物の多様性と環境因子との関係 Reviewed

    西村圭市, 武田育郎, 福島晟, 宗村広昭

    農業土木学会論文集   74 ( 2 )   99 - 105   2006

  • Estimation of supplementary water to paddy fields in the lower Mekong River basin during the dry season Reviewed

    Hiroaki Somura, Hajime Tanji, Koshi Yoshida, Osamu Toda, Katsuhiro Higuchi

    PADDY AND WATER ENVIRONMENT   3 ( 3 )   177 - 186   2005.9

     More details

    Language:English   Publishing type:Research paper (scientific journal)   Publisher:SPRINGER HEIDELBERG  

    Efficient management of water resources in paddy fields requires an understanding of the volume of supplementary water used. However, quantifying the volume is laborious due to the large amount of data that must be collected and analyzed. The purpose of our study was to estimate the volume of supplementary water used in paddy fields, based on several years of available statistical data, and to provide information on how much water can be supplied to paddy fields in each target area. In this study, the lower Mekong River basin of northeast Thailand, Laos, and Cambodia was selected as the study area. In the first step, we used agricultural statistics for each country, rainfall data acquired from the Mekong River Commission Secretariat (MRCS), and the value of virtual water required per unit of rice production. Because several years of data were used for dry season harvested areas and rice production in each country, the supplementary water to paddy fields in each province was calculated using virtual water and rainfall. This method made it possible to estimate changes in supplementary water in each province. Through this study, the supplementary water to paddy fields during the dry season in three countries was approximated from the minimum number of data sets. Moreover, for cases in which it is not possible to procure agricultural water use data for a hydrological model simulation, an alternative solution is proposed.

    DOI: 10.1007/s10333-005-0015-5

    Web of Science

    Scopus

    researchmap

    Other Link: http://orcid.org/0000-0002-2592-7174

  • Estimation of Irrigation Water to Paddy Fields under Conditions of Poor Data Availability, Cambodia Reviewed

    Somura H, Tanji H, Yoshida K, Toda O, Masumoto T

    JOURNAL OF JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES   18 ( 1 )   22 - 34   2005

     More details

    Publisher:水文・水資源学会  

    DOI: 10.3178/jjshwr.18.22

    researchmap

    Other Link: http://orcid.org/0000-0002-2592-7174

  • Estimation of supplementary water capacity for non-irrigated paddy fields during the dry season in Northeast Thailand Reviewed

    Somura H, Yoshida K, Higuchi K, Toda O, Tanji H

    Journal of the Japanese Agricultural Systems Society   21 ( 3 )   167 - 176   2005

     More details

    Publisher:システム農学会  

    DOI: 10.14962/jass.21.3_167

    researchmap

    Other Link: http://orcid.org/0000-0002-2592-7174

  • Model Development for Estimating Supplementary Water to Paddy Fields during Rainy Seasons in the Lower Mekong River Basin Reviewed

    Somura H, Yoshida K, Higuchi K, Toda O, Tanji H

    PROCEEDINGS OF HYDRAULIC ENGINEERING   49   235 - 240   2005

     More details

    Publisher:社団法人 土木学会  

    DOI: 10.2208/prohe.49.235

    researchmap

    Other Link: http://orcid.org/0000-0002-2592-7174

  • 河畔林保全による流域の河川水温管理 Reviewed

    吉田貢士, 宗村広昭, 樋口克宏, 丹治肇

    農業土木学会誌   73 ( 4 )   281 - 284   2005

  • Stream Temperature Analysis in Nam Ngum River Basin, Mekong Reviewed

    Yoshida, K, Tanji, H, Somura, H

    Annual Journal of hydraulic Engineering   48   1531-1535   2004

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    researchmap

  • 洪水リスクにおける脆弱性評価の検討 Reviewed

    丹治肇, 吉田貢士, 蘭嘉宣, 宗村広昭

    農業土木学会誌   72 ( 5 )   381 - 384   2004

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.11408/jjsidre1965.72.5_381

    researchmap

  • 河畔林密度の違いが河川水温環境に与える影響について Reviewed

    吉田貢士, 宗村広昭, 樋口克宏, 戸田修, 丹治肇

    水工学論文集   49 ( 1 )   1543 - 1548   2004

  • 東南アジアの米の将来需要予測 Reviewed

    丹治肇, 多田稔, 宗村広昭, 吉田貢士

    農業土木学会誌   72 ( 9 )   795 - 797   2004

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.11408/jjsidre1965.72.9_795

    researchmap

  • カンボジアのコルマタージュ・システムの歴史と展望 Reviewed

    戸田修, 樋口克宏, 宗村広昭, 丹治肇

    農業土木学会誌   73 ( 1 )   31 - 34   2004

     More details

  • 農業用水におけるライフ・サイクル・アセスメントの検討 Reviewed

    丹治肇, 吉田貢士, 蘭嘉宣, 宗村広昭

    農業土木学会誌   71 ( 12 )   1087 - 1090   2003

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.11408/jjsidre1965.71.12_1087

    researchmap

  • Modeling analysis of nitrate nitrogen pollution processes of groundwater in Nasunogahara basin Reviewed

    Somura H, Goto A, Mizutani M

    Transactions of the Japanese Society of Irrigation, Drainage and Reclamation Engineering   226   1 - 10   2003

  • Water quality forecast of Cidanau watershed, Indonesia, for watershed management planning, Reviewed

    Kato, T, Somura, H, Goto, A

    Rural and Environmental Engineering   43   3 - 12   2002

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    researchmap

  • Groundwater Nitrogen Pollution and Its Mechanism in Nasunogahara Basin, Tochigi Pref., Japan Reviewed

    Somura H, Masuda M, Goto A, Mizutani M

    Transactions of The Japanese Society of Irrigation, Drainage and Reclamation Engineering   219   71 - 79   2002

▼display all

MISC

  • Challenges to Establishing Environmental Resource Recycling Society after Texas Water Environment Project

    森 也寸志, 宗村 広昭, ウォルフ ジューン

    水土の知 : 農業農村工学会誌   83 ( 1 )   7 - 10   2015.1

     More details

    Language:Japanese   Publisher:農業土木学会  

    CiNii Article

    researchmap

  • 流域水質保全計画におけるSWATモデルの利活用に関する展望

    加藤亮, 宗村広昭

    水環境学会誌   37 ( 7 )   2014.7

     More details

    Language:Japanese  

    researchmap

  • 鉄バクテリアと木質バイオマスによる面源のリン負荷削減と循環利用

    武田育郎, 宗村広昭, 佐藤裕和

    用水と排水   53 ( 12 )   961 - 967   2011

     More details

  • 土壌浸透水採取による山林斜面における面源負荷の形成過程の解明,

    森 也寸志, 宗村広昭, 武田育郎

    環境技術   37 ( 11 )   1 - 6   2008

     More details

  • 間伐材と鉄バクテリアを用いた自然水域からのリン回収とその農業利用

    武田育郎, 宗村広昭

    環境技術   37 ( 5 )   347 - 351   2008

  • Mitigation of stream temperature change with reservoir management

    Yoshida, K, Tanji, H, Somura, H, Higuchi, K, Toda, O

    Proc. of the 4th International Symposium on Environmental Hydraulics   101-108   2006

     More details

    Language:English   Publishing type:Article, review, commentary, editorial, etc. (international conference proceedings)  

    researchmap

  • 私のビジョン「学生や地域住民との関わりを大切にして」

    宗村広昭

    農業土木学会誌   74 ( 11 )   1014 - 1016   2006

     More details

  • Estimation of Rice production and Evapotranspiration by using Plant Growth Model in Khon Kaen, Northeast Thailand

    Yoshida, K, Shiozawa, S., H, Toda, O, Somura, H, Tanji, H

    Proc. of 2ndInternational Symposium on Sustainable Development in the Mekong River Basin   2006

     More details

    Language:English   Publishing type:Article, review, commentary, editorial, etc. (international conference proceedings)  

    researchmap

  • Relation of corridor vegetation density and stream temperature

    Koshi Yoshida, Hiroaki Somura, Katsuhiro Higuchi, Osamu Toda, Hajime Tanji

    Dynamics and Biogeochemistry of River Corridors and Wetlands   294 ( 0 )   102 - 113   2005

     More details

    Language:English   Publisher:INT ASSOC HYDROLOGICAL SCIENCES  

    The decline of river corridor vegetation density strongly affects the river thermal environment, which also has a large impact on the ecological systems. In this study, a stream temperature analysis model related to river corridor vegetation density was developed and applied to the Nam Song River in Laos. Meteorological data (air temperature, relative humidity, wind speed) were used, and the sink or source terms of the heat transfer equation were estimated from those data. Land cover GIS data was used for vegetation density analysis along the main river. The results of simulation with several levels of vegetation density indicate that river water temperature is more sensitive to river discharge change in the case of low vegetation density.

    Web of Science

    researchmap

  • 遅延入力降雨系列を用いた貯留型流出モデルとその適用例

    福島晟, 武田育郎, 宗村広昭

    島根大学生物資源科学部研究報告   10 ( 0 )   37 - 46   2005

     More details

▼display all

Presentations

  • How should we manage a watershed for sustainable water environment? Invited International coauthorship International conference

    H. Somura, S. Yuwono , R. Yustika

    Japan Geoscience Union Meeting (JpGU) 2021  2021.6.4 

     More details

    Event date: 2021.5.30 - 2021.6.6

    Language:English   Presentation type:Oral presentation (invited, special)  

  • Mitigation of stream temperature change with reservoir management

    Yoshida, K, Tanji, H, Somura, H, Higuchi, K, Toda, O

    Proc. of the 4th International Symposium on Environmental Hydraulics  2006 

     More details

    Event date: 2006

    Language:English  

    researchmap

  • Estimation of Rice production and Evapotranspiration by using Plant Growth Model in Khon Kaen, Northeast Thailand

    Yoshida, K, Shiozawa, S., H, Toda, O, Somura, H, Tanji, H

    Proc. of 2ndInternational Symposium on Sustainable Development in the Mekong River Basin  2006 

     More details

    Event date: 2006

    Language:English  

    researchmap

  • Factors affecting water quality in Sekampung and Sangharus sub-watersheds, Lampung, Indonesia

    Yustika R, Arifin B, Yuwono S, Ismono R, SomuraH

    平成30年度農業農村工学会大会講演会  2018 

     More details

    Language:English  

    researchmap

  • アフガニスタン北部2流域への水文モデルの適用

    宗村広昭, Ezatullah Rabanizada, Shoaib Saboory

    水文・水資源学会2018年度研究発表会  2018 

     More details

    Language:Japanese  

    researchmap

  • Application of water balance model for evaluation of water resources and climate change impact in upper Panji-Amu River basin

    Rasekhudin S, Somura H

    平成30年度農業農村工学会大会講演会  2018 

     More details

    Language:English  

    researchmap

  • Causes of irrigation water scarcity in Landakhil irrigation canal, Nangarhar Province, Afghanistan

    Hashemi T, Somura H

    平成30年度農業農村工学会大会講演会  2018 

     More details

    Language:English  

    researchmap

  • コハクチョウ越冬による田面水や土壌への影響評価

    宗村広昭, 毛利達也

    平成30年度農業農村工学会大会講演会  2018 

     More details

    Language:Japanese  

    researchmap

  • Effects of anthropogenic water demands against ecological integrity in lower Limpopo River

    Nhassengo, O, Somura, H

    平成29年度農業農村工学会大会  2017 

     More details

    Language:English  

    researchmap

  • アフガニスタン・ホルム流域への水文モデル適用可能性と課題

    宗村広昭, Rabanizada, E, Mohammad, S

    水文・水資源学会2017年度研究発表会  2017 

     More details

    Language:Japanese  

    researchmap

  • Estimation of irrigation water Requirement in Zohrabi canal command area, Khulm watershed, Afghanistan

    Rabanizada, E, Somura, H

    平成28年度農業農村工学会大会  2016 

     More details

    Language:English  

    researchmap

  • アフガニスタン国ホルム流域ゾハラビ灌漑地区における灌漑要水量の推定

    農業農村工学会全国大会  2016 

     More details

  • 島根県宍道湖・中海周辺のため池における30年間の水生植物相の変遷

    農業農村工学会全国大会  2016 

     More details

  • Relationship between water quality variations and land use in the Batutegi Dam watershed, Sekampung, Indonesia

    The World Lake Conference 2016  2016 

     More details

  • Potential availability of feces from a migratory bird, Tundra Swan, in winter-flooded paddy fields

    Myanmar-Japan International Symposium 2016  2016 

     More details

  • コハクチョウの越冬が冬期湛水水田の土壌栄養塩量に与える影響に関する基礎研究

    農業農村工学会全国大会  2016 

     More details

  • Determining potential sites of water harvesting structures using Multi-Criteria Analysis and GIS in Khulm Watershed, Afghanistan

    Mohammad, S, Somura, H, Shobair, S

    平成27年度農業農村工学会大会  2015 

     More details

    Language:English  

    researchmap

  • 斐伊川流域における窒素,リンの流出解析

    日本陸水学会 第76回大会  2011 

     More details

  • Application of the SWAT model to the Abashiri River basin for impact assessment analysis to a brackish lake, Hokkaido region, Japan

    1st SWAT-SEA Conference  2009 

     More details

  • Relationship between farming activities and water quality variations of drainage water from paddy fields area

    World Environmental & Water Resources Congress 2008  2008 

     More details

  • SWATモデルを用いたSS成分の流出量解析

    農業農村工学会大会  2008 

     More details

    Presentation type:Poster presentation  

    researchmap

  • Estimation of suspended solid discharge to a brackish lake in Shimane prefecture, Japan

    5th SWAT International Conference  2008 

     More details

  • Application of the SWAT Model to the Hii River Basin, Shimane Prefecture, Japan

    4th INTERNATIONAL SWAT CONFERENCE  2007 

     More details

  • SWATモデルの斐伊川への適用

    農業農村工学会大会講演会  2007 

     More details

    Presentation type:Poster presentation  

    researchmap

  • 飯梨川における水質の空間分布

    汽水域国際シンポジウム2007  2007 

     More details

  • Impact Assessment of Climate Change to Salinity in Brackish Lake: A Case Study with SWAT Model and Regression Curve

    AGU Fall Meeting  2007 

     More details

    Presentation type:Poster presentation  

    researchmap

  • Irrigation Water Consumption during the Rainy Season in the lower Mekong River Basin

    The 2nd International Symposium on Sustainable Development in the Mekong River Basin  2006 

     More details

  • 水田群が周辺環境に与える環境影響評価のための基礎的研究

    平成18年度農業土木学会大会  2006 

     More details

  • 農業土木(分野)の現状

    サマーセミナー2006  2006 

     More details

  • Cost Allocation Model for Construction and Maintenance of Irrigation and Drainage Facilities

    19th Congress on Irrigation and Drainage  2005 

     More details

  • Estimation of Recovery of Historical Fish Catch in Cambodia with consideration of Flood Water Levels

    19th Congress on Irrigation and Drainage  2005 

     More details

  • 農業生産量データを用いた補給水量推定の試み

    平成17年度農業土木学会大会  2005 

     More details

  • Model Development for Supplementary Water Estimation in the Lower Mekong Basin

    19th Congress on Irrigation and Drainage  2005 

     More details

▼display all

Research Projects

  • 灌漑用水配分のための人工知能に基づく対話型意思決定支援システムの開発と実地試験

    2018 - 2021

    JSPS  基盤研究B 

    加藤亮

      More details

    Grant type:Competitive

    researchmap

  • インドネシア・スカンプン川流域における生態系サービスの持続性と最適解に関する研究

    2017 - 2020

    JSPS  基盤研究B 

    嘉田良平

      More details

    Grant type:Competitive

    researchmap

  • フィリピン棚田群の劣化プロセスの解明と水文学的将来予測による最適環境管理

    2017 - 2020

    JSPS  基盤研究B 

    森 也寸志

      More details

    Grant type:Competitive

    researchmap

  • 渡鳥コハクチョウのもつ営農コスト削減ポテンシャルの検証と湖沼流域への負荷削減効果

    2015 - 2018

    JSPS  基盤研究C 

    宗村広昭

      More details

    Authorship:Principal investigator  Grant type:Competitive

    researchmap

  • 東南アジアにおける農林業と環境の両立にむけた生態系サービス支払いの制度設計

    2014 - 2017

    JSPS  基盤研究B 

    嘉田良平

      More details

    Grant type:Competitive

    researchmap

  • DPSIRモデルによる宍道湖における突発的な水草の分布拡大の評価と対策

    2013 - 2017

    JSPS  基盤研究B 

    國井秀伸

      More details

    Grant type:Competitive

    researchmap

  • 遺伝的アルゴリズムによる環境直接支払の最適化と農業政策への適用

    2013 - 2016

    JSPS  挑戦的萌芽研究 

    田中勝也

      More details

    Grant type:Competitive

    researchmap

  • 伊勢湾流域圏を対象とした水系総合モデルの開発と感度解析

    2013 - 2016

    JSPS  基盤研究C 

    大西健夫

      More details

    Grant type:Competitive

    researchmap

  • 熱帯地域における可給態ケイ酸動態調査と稲作のための自然供給システム構築

    2012 - 2015

    JSPS  基盤研究B 

    増永二之

      More details

    Grant type:Competitive

    researchmap

  • 汽水湖水環境の修復に向けた周辺河川流域の影響解析

    2012 - 2015

    JSPS  若手研究B 

    宗村広昭

      More details

    Authorship:Principal investigator  Grant type:Competitive

    researchmap

  • 統合的サステイナビリティ・インデックスによる環境政策評価モデルの構築

    2009 - 2011

    JSPS  基盤研究C 

    加藤亮

      More details

    Grant type:Competitive

    researchmap

  • 地域の有機性資源と鉄バクテリアを用いたリン資源の循環利用システム

    2008 - 2012

    JSPS  基盤研究B 

    武田育郎

      More details

    Grant type:Competitive

    researchmap

  • 気候変動による流域水環境の変化が汽水域の生物生息環境に及ぼす影響評価に関する研究

    2008 - 2009

    JSPS  若手研究B 

    宗村広昭

      More details

    Authorship:Principal investigator  Grant type:Competitive

    researchmap

  • 熱帯アジア(インドネシア)における集水域生態系の持続的利用と農業生産

    2006 - 2008

    JSPS  基盤研究B 

    増永二之

      More details

    Grant type:Competitive

    researchmap

  • 水田地域における生物生息環境保全のための水土環境診断システム

    2004 - 2007

    JSPS  基盤研究B 

    武田育郎

      More details

    Grant type:Competitive

    researchmap

  • 流域水資源管理*半乾燥地における水資源の有効利用と農業生産の安定化に関する研究

      More details

    Grant type:Competitive

    アフガニスタンにおいて,流域における水資源の確保・有効利用と農業生産(特に麦)の安定化を目指して,水資源量(灌漑水量)に関する解析や将来的な気候の変化による水資源量の変化に関する解析を,アフガニスタンからの留学生と共に行っている.

    researchmap

  • 流域水環境管理*流域環境の変化が生物生息環境に与える影響*営農など人間活動が流域水環境へ及ぼす影響*河川流域が下流湖沼の水文・水質環境に及ぼす影響*コハクチョウの越冬が冬期湛水水田の水環境に与える影響と営農コスト削減効果に関する研究

      More details

    Grant type:Competitive

    researchmap

  • Modeling Analysis of NO<sub>3</sub>-N pollution Processes of Groundwater.

    0100 (Japanese Only) 

      More details

    Grant type:Competitive

    researchmap

  • 流域水資源管理*半乾燥地における水資源の有効利用を通した農業生産の安定化と河川生態系保全に関する研究

      More details

    Grant type:Competitive

    アフリカ・モザンビーク・リンポポ川流域において,特に乾期の灌漑水量の確保・食糧生産の安定化と環境用水・生態系保全とのバランス(最適管理)に関する研究を,モザンビークから来た留学生と共に開始している.

    researchmap

▼display all

 

Class subject in charge

  • Laboratory in Water Management (2021academic year) 1st semester  - 月5,月6,月7,木5,木6,木7

  • Programming (2021academic year) 3rd and 4th semester  - 水1,水2

  • Programming (2021academic year) 3rd and 4th semester  - 水1,水2

  • Programming 1 (2021academic year) Third semester  - 水1,水2

  • Programming 2 (2021academic year) Fourth semester  - 水1,水2

  • Laboratory Work and Practice on Basic Engineering (2021academic year) 1st and 2nd semester  - 火5,火6,火7,火8

  • Laboratory Water Management (2021academic year) 1st semester  - 月5~7,木5~7

  • Introduction of Fluid Dynamics (2021academic year) Fourth semester  - 火5~6,金5~6

  • Special Research (2021academic year) Year-round  - その他

  • Biosphere and Ecosystem (2021academic year) Second semester  - 火1~2,金3

  • Biosphere and Ecosystem (2021academic year) Second semester  - 火1~2,金3

  • Environmental Meteorology (2021academic year) Second semester  - 木1~3

  • Irrigation and Environmental Biophysics (2021academic year) Late  - その他

  • Rural and Environmental Meteorology (2021academic year) Prophase  - 火2~3

  • Seminar on Irrigation and Drainage (2021academic year) Prophase  - その他

  • Seminar in Irrigation and Drainage (2021academic year) Late  - その他

  • Seminar on Irrigation and Drainage (2021academic year) Late  - その他

  • Seminar in Irrigation and Drainage (2021academic year) Prophase  - その他

  • Laboratory in Water Management (2020academic year) 1st semester  - 月5,月6,月7,木5,木6,木7

  • Introduction to Innovation (2020academic year) Late  - 月7,月8,金7,金8

  • Introduction to Innovation (2020academic year) Late  - 月7~8,金7~8

  • Laboratory Water Management (2020academic year) 1st semester  - 月5,月6,月7,木5,木6,木7

  • Laboratory Water Management (2020academic year) 1st semester  - 月5,月6,月7,木5,木6,木7

  • Introduction of Fluid Dynamics (2020academic year) Fourth semester  - 火4,火5,金4,金5

  • Introduction of Fluid Dynamics (2020academic year) Fourth semester  - 火4,火5,金4,金5

  • Special Research (2020academic year) Year-round  - その他

  • Biosphere and Ecosystem (2020academic year) Second semester  - 火1,火2,金3

  • Biosphere and Ecosystem (2020academic year) Second semester  - 火1,火2,金3

  • Environmental Meteorology (2020academic year) Second semester  - 火6,火7,火8

  • Environmental Meteorology (2020academic year) Second semester  - 火6,火7,火8

  • Irrigation and Environmental Biophysics (2020academic year) Late  - その他

  • Rural and Environmental Meteorology (2020academic year) Prophase  - 火2,火3

  • Seminar on Irrigation and Drainage (2020academic year) Prophase  - その他

  • Seminar in Irrigation and Drainage (2020academic year) Late  - その他

  • Seminar on Irrigation and Drainage (2020academic year) Late  - その他

  • Seminar in Irrigation and Drainage (2020academic year) Prophase  - その他

▼display all