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青草沙,是中国长江河口的一个冲积沙洲,位于上海长兴岛的西北方。青草沙拥有大量优质淡水,总面积约70平方公里,年均径流总量为4896亿立方米。上海被列为全国36个水质型缺水城市之一,更是联合国预测21世纪饮用水缺乏的世界6大城市之一。青草沙水库建成后,每天可供水719万立方米,将一举弥补上海用水缺口。
Qingcaosha, an alluvial sandbank in the Yangtze River estuary in China, is located northwest of Changxing Island in Shanghai. Qingcaosha has a large amount of high-quality fresh water, with a total area of about 70 square kilometers and an average annual runoff of 489.6 billion cubic meters. Shanghai is ranked as one of the 36 water-quality cities in the country. It is also one of the six major cities in the world that the United Nations predicts will lack access to drinking water in the 21st century. After the completion of Qingcaosha Reservoir, a daily supply of 7,190,000 cubic meters of water will make up for the shortage of water in Shanghai.