Study On Urban River's Ecological Restoration

The theme of this paper is research of urban river's ecological restoration. At present, river deterioration has been already accepted as a global environment problem and been widely concerned by the international society. Along with the enhancement of environment consciousness, ecological awareness and the improvement of living standards, the society's request to restore the urban river's disturbed ecosystems has become more and more urgent. Many practice in countries tell us that the combination of the hydraulic engineering and zoology is the important development trend for future river training work. The water resources development of our country is also making for the new stage from traditional "the engineering water resources" to "the ecosystem water resources" and "the environment water resources".This dissertation analyses and studies the common problems that domestic and overseas urban rivers are facing, and summarizes the foreign experiences in urban river's ecological restoration. At the same time, it elaborates the concept and target of urban river's ecological restoration. Based on these, an indicator system for urban river health assessment, which provides 6 subindices and 23 indicators, is established.It expatiates the 5 aspects of theoretics and methods of urban river's ecological restoration separately, and it expatiates that the research to ecological water demand has important meaning for urban river's ecological restoration and elaborates the component and major account method of ecological water demand for urban river. Consequently, it guides programming and design of urban river's ecological restoration projects.The approach of urban river's ecological restoration of Shaoxin city is analyzed based on theoretics and methods of urban river's ecological restoration.