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ESTIMATION OF POLLUTANT RUNOFF FROM AN URBAN AREA AND ITS INFLUENCE ON WATER ENVIRONMENT

城市地区污染物径流估算及其对水环境的影响

基本信息

批准号：
06650569
负责人：
NOGUCHI Masato
金额：
$ 1.22万
依托单位：
NAGASAKI UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1994
资助国家：
日本
起止时间：
1994 至 1995
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-06650569/
关键词：
water environment urbanization pollutant runoff physically-based model water quality mathematical simulation field observation resuspention of bed loads Physically-based model

项目摘要

In order to estimate the pollutant runoff from urbanized and urbanizing areas and their influence on water environment, observation of nutrient fallout has been carried out through a project period. At the same time, quantitative and qualitative investigation has been done in the Honmyo river and its estuary, while mathematical simulation models have been developed based on their results, aiming at the water environmental assessement.It is well known that integrated water management in a river and its watershed becomes necessary in order to attain a sound and sustainable development of water environment. Among all, it becomes more important to estimate the spatial and temporal variations of pollutant loads from point and non-point sources, and to complete their data base which can be utilized by anyone. Investigators have already developed the NUMEROUS-EXTENDED as one of the urban storm drainage models, which enables us to predict the hydrograph and pollutograph from urban areas. The above-mentioned data base becomes available as its input data, and pollutant runoffs from a river basin into the receiving water can be appropriately estimated by its model.On the other hand, qualitative and quantitative observations from the chemical and biological viewpoints have also been carried out through the reaches of the Honmyo river. These observed data become useful for estimating the influences of a nature-friendly levee on the water environment and also those of suspended solids and other pollutant loads by a mathematical simulation model.

为了估算城市化和城市化地区的污染物径流量及其对水环境的影响，在一个项目期内进行了营养盐沉降观测。同时，对本庙河及其河口进行了定量和定性的调查，并在此基础上建立了数学模拟模型，对水环境进行了评价，认为为了实现水环境的健康可持续发展，必须对河流及其流域进行综合水管理。其中，估算点源和非点源污染物负荷的空间和时间变化并完善可供任何人使用的数据库变得更加重要。研究人员已经开发了NUMEROUS-EXTENDED作为城市暴雨排水模型之一，使我们能够预测城市地区的过程线和污染线。上述数据库可作为输入数据，通过该模型可适当估算从河流流域流入受纳水体的污染物径流量。另一方面，还从化学和生物学角度对本庙河流域进行了定性和定量观测。这些观测数据成为有用的估计自然友好的堤防对水环境的影响，也是悬浮物和其他污染物负荷的数学模拟模型。