nullWater Resources in China
Water Resources in China
Water ResourcesWater ResourcesWhich four main elements(元素)including in water resources?null China‘s water situation ：
Annual mean precipitation is 648 mm in China , with an estimated discharge of 2711.5 billion m³, 828.8 billion m³ in shallow groundwater resource , and an aggregate annual volume of 2812.4 billion m³.
年平均降水量为648毫米，估计中国排放，2711500000000立方米，8288.00亿立方米的浅层地下水资源，以及总额28124.0亿立方米的年销量。nullPrecipitation in various regions of China differs greatly and unevenly in distribution as a result of China’s monsoon climate, topography(地形), and geomorphy(地貌). In the east rainfall is generally heavy, whereas the west has very little rainfall; meanwhile, the south has heavy rainfall, whereas the north has very little rainfall.nullAt the same time, China have more then 50 000 rivers whose catchment area is over 100 k㎡, and 1 500 rivers whose catchment area is over 1 000 k㎡. Out of which, the most famous rivers are Yangtze River, Yellow River, Zhujiang River, and Huaihe River.
nullBesides, there are roughly 24 000 lakes in China a total storage capacity of 708.8 billion m³ and a surface area of 72 000 k㎡. Well-known freshwater lakes are Poyang Lake, Dongting Lake, Taihu Lake, and Hongze Lake.
nullGroundwater resources in the national annual average of about 828.8 billion m³, of which 676.2 billion m³ distributed in the mountainous regions, 187.4 billion m³ distributed in the plains, mountains and plains repeat the exchange of about 348 billion m³.nullBecause of this vast quantity of water, China is ranked the sixth in the world in terms of aggregate annual water resources. However, the available water resources annually per-capita in China is only 2 200m³，which makes China one of the water shortest countries of the world. The scarcity(稀缺) of water resources especially in the north China.null
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