城市环境水文问题分析

Analysis of Non-Point Source Pollution Problems Associated with Urbanization

城市化对水环境污染是一个具有普遍性和严重性的问题.城市水环境污染分为点污染和面污染两类.本文针对城市降雨径流污染(城市面源污染)作了系统分析.其内容包括城市化对降雨径流的影响,城市面污染的积累和暴雨径流的冲刷,以及推求城市暴雨径流污染负荷过程的模拟途径.

Urbanization is one of the most important influences of human activites on geograhpic varation.The effects of watershed urbanization on storm runoff are first discussed in this paper. In many cases,the storm runoff also carries with it a substantial amount of pollution,causing not only posible flooding problems,but also deterioration of water quality in downstream.In this paper the non-point sources pollution of storm runoff on urban areas are discussed and the approach about how to determine the pollution loads process of watershed urbanization are also presented.