Comparative Survey on Non-Point Source Pollution among Three Regions in Japan

日本三地区面源污染比较调查

• 批准号: 11650564
• 负责人: TANAKA Kazuhiro
• 金额: $ 1.73万
• 依托单位: Nihon University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11650564/
• 关键词: Non-Point Source; Load of rainfall runoff; Transportation mechanism; Floods; Sedimented dust; Road sediments; Nutrients; Heavy Metals; 出水時; 地域特性

Rainfall runoff contains several types of pollutants and possibly causes deterioration of water quality in public water bodies. Recently many researchers have tried to evaluate non-point source (NPS) pollution quantitatively and to make clear the mechanism of pollutant runoff. But NPS depends so much on the regional characteristics that systematic research has not been done. The purpose of this study is to make clear the characteristics of NPS pollutant runoff from areas with different regional characteristics.In urban area like Funabashi City and Chiyoda City, road runoff is possibly the main NPS. Most of researches were conducted to investigate either sedimentation process or runoff process, because of the experimental difficulties. We tried to link the results obtained from each investigation together. Consequently, particle size and solubility were suggested to be the key factors in the mechanism of pollutant runoff.In Koriyama City, NPS pollutant runoff into Abukuma River and Miharu Lake caused by floods is major problem. Transportation mechanisms of pollutants during floods were investigated. Continuous observation revealed that the pollutant transportation characteristics were correlated with the regional properties. And mathematical model to express the phenomena, which were observed in this study, was developed. Sedimentation process, re-suspension process, and the correlation between river sediments and nutrients were also considered in the model.

降雨径流中含有多种污染物，可能导致公共水体水质恶化。近年来，许多研究者试图定量评价非点源污染，并阐明污染物径流的机理。但由于其对地域特征的依赖性较大，目前还没有系统的研究。本研究的目的是弄清不同地域特征地区的污染物径流特征。在船桥市和千代田市等城市地区，道路径流可能是主要的污染物。由于试验困难，大多数研究都是针对泥沙过程或径流过程进行的。我们试图把每次调查的结果联系起来。因此，粒径和溶解度是污染物径流机制的关键因素。郡山市的主要问题是洪水造成的污染物流入阿武熊川和三春湖。研究了洪水期间污染物的迁移机制。连续观测结果表明，污染物输运特征与区域特征相关。并建立了数学模型来描述本研究中观察到的现象。模型中考虑了泥沙的沉降过程、再悬浮过程以及泥沙与营养盐的相关性。

项目成果

高橋迪夫,渡邉毅: "洪水時の三春ダムにおける汚濁物質の流出・流送特性"第43回 日本大学工学部学術研究報告会講演要旨集. 112-113 (2000)

高桥道夫、渡边刚：“洪水期间三春水库污染物的流出和输送特征”第43届日本大学工学院学术研究报告会议摘要112-113（2000）。

齋藤 利晃、田中 和博: "都市域における路面堆積物中の重金属含有量について"第43回 日本大学理工学部学術講演会 土木系部会講演集. 538-539 (1999)

Toshiaki Saito，Kazuhiro Tanaka：“关于城市地区道路表面沉积物中的重金属含量”第43届日本大学理工学院学术会议论文集，土木工程部门538-539（1999）。

渡邊 毅, 高橋迪夫: "洪水時の三春ダム流域における汚濁物質の輸送機構"土木学会第56回年次学術講演会講演集. 344-345 (2001)

Takeshi Watanabe、Michio Takahashi：“洪水期间三春坝盆地污染物的传输机制”第 56 届日本土木工程学会学术年会论文集 344-345（2001）。

H. Nagabayashi, N. Kobayashi: "The Mechanism of Nutrient Load and Material Transportation of Flooding River"Proceedings of the Twelfth Congress of the Asia and Pacific Regional Division of the International Association for Hydraulic Engineering and Resear

H. Nagabayashi、N. Kobayashi：“洪水河道营养负荷和物质输送的机制”国际水利工程与研究协会第十二届亚太地区分会会议论文集

小川裕正, 長林久夫: "山間地湖沼の負荷特性と水質特性の長期消長過程に関する研究"水工学論文集. 第46巻. (2000)

小川弘正、永林久雄：“山地湖泊沼泽负荷特性和水质特性的长期演化过程研究”，水利工程学报，2000年第46卷。