Study On The Construction System Of Eco-river Course And Its Application

The urban river course is the essential factor in the sustainable development of the urban society and economy, is the carrier of urban river system,and also is an important component of the urban ecosystem. For a long time, the urban river course ecosystem has been further deteriorated for three reasons: The first ,because of the environmental infrastructure construction having lagging far behind the economic development, a massive of industrial waste, sanitary sewage, agricultural sewage and urban surface runoff directly disperse into the rivers; The second, because of the poor management in river course, the bottom of the river has accumulated lots of sludge and rotted algae, leading to the stream blocked, deteriorated, and failing to achieve the water standard setted for functional areas; The last, blinded implement treats in the urban river course linearizing and flatizing only for the spillway function. With the improvement of living standards, the requirement is upgrading for the environmental and ecological quality, as a result, the single river landscape has failed to satisfy the people's request to be intimated to the nature.On the other hand, we need an alink to connect the eco-river course idea, the theory and technology of the river course training, the constitute of the river course regulating measures with the sustainable management of the river course training. Study on the specific connotation of eco-river and establish eco-river construction system can fill up the vacancy.On the basis of pre-study, the paper mainly discusses the idea of eco-river construction and initially establishes a system of eco-river construction from the experience of river course training at home and aboard, absorpting their outstanding theory and optimizing their technology in river course training. Taking the example of the planning for zhazhuangqiaogang eco-river course to practice the system of eco-river construction.The establishment of the system provides a basis for urban river course training or others making the work for it more standardization and scientific. Moreover, the establishment of the system makes eco-river course more sustainability exert its maximal service function. More far-reaching speaking, the establishment of the system which advanc its integrated level accelerates the development in scientific research and practice of hydraulic engineering, bearing important theoretical and practical significance.The paper is consisted of five sections.①Introduction. To introduce the gist to set up the topic, research background, the correlation research progress and the paper framework.②Main theoretical basis and correlative technology. To introduce correlative theory of urban river ecosystem and River's ecological restoration and some correlative technology of river ecological slope protection, water quality rehabilita-tion and landscape design.③Construction of eco-river course and its framework system. To introduce the connotation of eco-river course and its construction principle, the framework of eco-river construction system and the necessity of its establishment.④Application example. To compile directed by the construction system of eco-river course.⑤Conclusion and discussion. To summarize 9 conclusions, 4 innovation spots, discussing the paper deficiency and some prospects for future work.