三峡与南水北调工程建设及海平面上升对上海城市供水水质的可能影响

Impacts of the Construction of Key Water Conservancy Projects in the Yangtze River and Sea Level Rise on Water Quality of Shanghai Water Intake

上海城市供水水源地水质除受沿岸地区经济发展过程中大量污染物排放的影响外 ,主要受河口盐水入侵的危害 ,导致严重的水质型缺水问题。正在建设的三峡水利枢纽和拟议中的南水北调工程与全球变暖引起的海平面上升效应相叠加 ,无疑将影响长江河口段和黄埔江的盐水入侵强度 ,进而危及上海城市供水水质。着重探讨三峡与南水北调工程建设运营及海平面上升对上海城市供水水源地水质可能产生的综合影响 。

The Yangtze River mouth is a main headwaters of Shanghai, the water quality of the mouth is affected by both salt water intrusion and pollution from economic development and people's daily life In recent years, decline in water quality of the mouth has resulted in serious problems of the shortage of water supply in this region In constructing Three Gorge Water Control Project and in planning the Project of Transporting Water from the Yangtze River to North China, in addition, sea level rise caused by global warming will all affect water quality of the mouth through exacerbated salt water intrusion Based on the analysis of the affected factors of water quality of the Yangtze River mouth, this paper emphatically studies the integrated impacts of the construction of key water conservancy projects and sea level rise on water quality of Shanghai water intake The result shows that the construction of Three Gorge Water Control Project and the Project of Transporting Water from the Yangtze River to Northern China as well as future sea level rise will result in the decline of water quality of Shanghai water intake in both South Branch of the Yangtze River and Huangpu River, the obvious effects will appear in October and the dry season of the Yangtze River(from December of this year to March of the next year)