Strategies and Applications of Groundwater Exploitation for Ecological Conservation in Arid Fragile

• 作 者: ChenYue;LiYu-Hong;
• 机 构: School of Hydropower & Information Engineering, Digital Engineering Research Center, Huazhong Univer
• 出 处: 环境保护与可持续发展国际研讨会(Proceedings of International Workshop in Con
• 发表日期: 2009年期

　　A comparative study of agriculture and groundwater characteristics in a fragile arid region were analyzed to determine the impacts of groundwater use on desertification and salinization and to develop an index for the sustainable development of these arid lands.Reduction of ecological vulnerability was the evaluation criterion used.We used two quantitative coupled indicators,the irrigation guarantee rate and carrying capacity per unit area from groundwater,as the evaluation mechanism and,based on empirical evidence,an ecological warning line and warning interval of groundwater were established.The evaluation criteria can be used to designate water use areas (such as areas of optimized exploitation,emphasis exploitation,restraint exploitation and prohibited exploitation),and formulate policies for the critical regulation of groundwater use and ecological restoration strategies for these arid landscapes.