Determination of the reasonable proportion of ecological water used of river ecological system

	Determination of the reasonable proportion of ecological water used of river ecological system
	Xia Jun; Zhan Che-Sheng; Liu Su-Xia
	2005
关键词	Ecology Industrial economics Rivers Water supply
英文摘要	Models of the proportion of ecological water requirement (EWR) and ecological water used (EWU) were put forward. Using the models, the EWU proportion based on EWR, and reasonable proportion of EWU suitable for the local situation of water resources and social economic development were calculated with overall consideration of actual social economical water use. Then, EWR of river ecological system was calculated with an objective renewing the ecological system of the Haihe river to the level in the 1970s. The thresholds of the EWR were 16%-66%. The proportion of actual EWR of the Haihe River during 1999-2002 revealed that the EWU has not been satisfied. Considering the coordination with the social economic development of the Haihe area, the reasonable proportion of Haihe EWU should be maintained within threshold value of 16%-46%.
出处	Zhongshan Daxue Xuebao/Acta Scientiarum Natralium Universitatis Sunyatseni
卷	44 期:2 页:121-124
收录类别	EI
语种	英语
内容类型	EI期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/24396]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Xia Jun,Zhan Che-Sheng,Liu Su-Xia. Determination of the reasonable proportion of ecological water used of river ecological system. 2005.