Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS

The Allowable Exploitation Rate of Rivers Water Resources of the Seven Major Rivers in China

  • 1. School of Natural Resources and Environment,Renmin University of China,Beijing 100872,China;
    2. River and Coastal Environmental Research Center,Chinese Research Academy ofEnvironmental Sciences,Beijing 100012,China

Received date: 2007-11-22

  Revised date: 2008-04-01

  Online published: 2008-05-28


This essay analyzes the factors effecting the exploitation rate of surface water resources from the point of view of binary water circulation.The result indicates that there is close relationship between the exploitation rate of surface water resources and watercourse ecological demands of water,also between regression water and its pollutants' concentration.Besides,in this essay,taking the watercourse ecological demands of water and the ratio between the quantities of polluted water and runoff for condition,the connection between the exploitation of water resources and consumption coefficients is discussed,which presents the increasing trends in logistic curve.With the augment of consumption coefficients,the exploitation rate of water resources is allowed to experience a trend from increasing to maximum to decreasing,while the range is from 20% to 50% to 40%.Taking the seven major rivers in China as an example,this essay estimates the allowable thresholds of exploitation rate of surface water resources under the condition of current water resources consumption.The result shows that the thresholds of Songhuajiang River,Liaohe River,Haihe River,Yellow River,Huaihe River,Yangtze River and Zhujiang River prove to be respectively 34%,38%,45%,36%,38%,31% and 32%.Compared with the seven rivers current exploitation rate of water resources,the results show that the rates of Songhuajiang,Yangtze River and Zhujiang River are within their thresholds' range,while the rates of Liaohe River and Haihe River,Yellow River and Huaihe River all exceed the maximal allowable exploitation rate.

Cite this article

WANG Xi-qin, ZHANG Yuan . The Allowable Exploitation Rate of Rivers Water Resources of the Seven Major Rivers in China[J]. JOURNAL OF NATURAL RESOURCES, 2008 , 23(3) : 500 -506 . DOI: 10.11849/zrzyxb.2008.03.017


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