Socio-hydrological investigation of mitigations for agricultural-origin water pollution

2017 Fiscal Year Final Research Report

• Project/Area Number: 15KT0120
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 特設分野
• Research Field: Food Cycle Research
• Research Institution: Nagasaki University
• Principal Investigator: NAKAGAWA Kei 長崎大学, 水産・環境科学総合研究科(環境), 教授 (90315135)
• Co-Investigator(Kenkyū-buntansha): 渡辺 貴史 長崎大学, 水産・環境科学総合研究科(環境), 教授 (50435468)
• Project Period (FY): 2015-07-10 – 2018-03-31
• Keywords: 硝酸性窒素 / 地下水汚染 / 窒素負荷ポテンシャル / GIS（地理情報システム）

Outline of Final Research Achievements

This study considered strategies to enhance compatibility between mitigating groundwater pollution and promoting the agricultural/livestock industry from both scientific and social perspectives. We investigated spatial and temporal changes in groundwater pollution from the beginning of the problem to the present and investigated stakeholder's awareness and responses to the pollution problem. The following two topics were considered: 1) elucidation of the spatiotemporal structure of pollution, and 2) elucidation of the awareness and response to groundwater pollution. We found that although the supply of nitrogen to groundwater is decreasing, the nitrate concentration remains high in areas near the pollution source. Alongside measures to reduce nitrogen load as people's responses to pollution levels changed, the remaining approaches required to solve the pollution problem were clarified.

Free Research Field

環境地下水学・地盤環境工学