Possible Effects of the Proposed Eastern Route Diversion of Changjiang (Yangtze) River Water to the Northern Provinces with Emphasis on the Hydrobiological Environment of the Main Water Bodies Along the Transer Route
In China there is an abundance of water in the south, the main sources being the Changjiang (Yangtze) River and its tributaries, while in the north, where the main supply is the Huanghe (Yellow) River, there is a shortage of water. The average annual rainfall throughout south China is more than 1000 mm while in the north it is only 500–600 mm (Figure 1). The Changjiang River Basin and areas to the south receive 75% of the country’s total surface runoff, while the Huanghe Basin and areas to the northwest receive only 8%. The Changjiang River has an annual flow of close to 100 x 1010 m3 per year, while the Huanghe River which is almost the same length, has an annual flow of less than 5 x 1010 m3. This disparity in water distribution indicates the need for eventual transfer of water from south to north.
KeywordsCommon Carp Grass Carp Silver Carp Northern Province Large Yellow Croaker
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