The Key Role of Water Resources Management in Ecological Restoration in Western China
作者单位：Institute of Geology and GeophysicsChinese Academy of Sciences
会议名称：《中国科学院地质与地球物理研究所2006学术年会》
会议日期：2007年
学科分类：082802[工学-农业水土工程] 07[理学] 08[工学] 0828[工学-农业工程] 09[农学] 0903[农学-农业资源与环境] 0713[理学-生态学]
关 键 词：water resource reservoir ecology regional development ecological rehabilitation environmental management hydrology China
摘 要：The interactions of nature and society are intimately reflected in the degradation of the vast, yet diverse,landscapes and ecosystems of arid western *** development of agriculture, especially irrigation,has altered rivers,soils and ecosystems so much that major ecological rehabilitation and restoration efforts have been needed since *** catchments of the Tarim River in southern Xinjiang(the Tarim Basin) and of the Black River(Hei He) in Gansu Province and western Inner Mongolia provide examples of the benefits,difficulties and conflicts involved in dryland water *** the early stages of human development of these catchments,agriculture depending on irrigation with water from these inland rivers was *** over-exploitation of these water resources led to such ecological problems as desiccation of lakes,drying-out of rivers,degradation of soils and vegetation and lowering of groundwater levels,with consequent environmental and economic *** 1990 several high-cost,national projects to re-establish ecosystems have been initiated. Water is now released from dams in the headwaters of the rivers in order to restore water flows to the dried-out lake *** schemes have inevitably led to social problems and difficulties for the people who depended on the water from the dams for local *** contrasts in adjustments and attitudes over the use of water for agriculture and other economic activities,as opposed to schemes of restoration of ecosystems and ecological engineering,stem largely from two issues:inconsistent provision of information from the scientific community,and differing ideologies,namely environmental protection versus economic development.