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Institut de la Recherche Interdisciplinaire de Toulouse Association de la Recherche Interdisciplinaire |
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Forum of Organic Ecology and Circular Economy
Section:
Research Dispatch: Urgent Environment Affairs and Circular Economy
Water Resources in China: More Need
But Less Supply
Xu XuHan
IRIT-ARI, 197-199 Rue des Fontaines, 31300 Toulouse,
France.
Water supply in China faces a critical situation in relation to fast development demands.
In China, in the last 20 years, natural precipitation has decreased about 6% in the vast areas around the Yellow River, Huai River, Hai River and Liao River, mainly in the central and north China, and surface water decreased about 17%. About 2/3 cities in China are deficient in water resources and natural precipitation. In rural areas, a population around 20 300 000 face un-guaranteed drinking water supply, and in urban areas, the figure also reaches 100 000 000. The overall national water supply still needs a more 40 000 000 000 M3.
In average, drought caused losses reach 1.2% of China’s annual GDP in the last 20 years, and 15 300 000 ha faming fields are shocked by drought each year. The areas with qualified water function only cover 41.6% in China.
The average GDP per M3 of water is only 23 Yuan (about 2.3 €), a valued of 1/3 in the industrialized counties. In the year 2007, 75 000 000 000 M3 waste water was released to the environment. The national planning for water use in the “11th Five” has set a 30% decrease in water input for each unit of industrial added value, and a 20% decrease of water input for each GDP unit.
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Received 24 Feb 2009
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