The Study Of River Health Assessmen And Landscape Pattern Optimization On Qinling Taiping River Plain

The Taiping river plain area of the northern Qinling is a piedmont diluvial sector river with fragile ecological environment, unstable landscape process and complex humanities process. The Taiping river is regarded as the research scope and the plain section as the research object. Then from the related theory of the river corridor and landscape ecology, a river health evaluation of the Taiping river plain ecological system is taken through field investigation and data analysis. At the same time, the essence that leads the Taiping river plain section to ecological degradation is put forward and the ecological process which has caused these problems is analysed in order to come up with control pattern to improve ecological processes.From the theory of the river system theory and landscape ecology, the strategy and pattern of the Taiping river plain section’s ecological process restoration is put forward on the basis of the health evaluation of its river corridor. The introduction part is mainly about the research object, research scope and research content of this study and the purpose and significance of the research is put forward with the research method and process briefly illustrated, the innovation of the thesis highlighted and the outline of the thesis showed.Literature review is on the background theory in detail and the current research situation of river health evaluation and structure optimization at home and abroad is comprehensively discussed with the overseas classic case of river evaluation and restoration deeply analysed. The main body of this paper is respectively about river health evaluation system building and the comprehensive evaluation methods, and structure optimization methods. Then the river health evaluation methods are used to construct the river health evaluation system of the Taiping river of Qinling and the health evaluation is carried on it. Finally, based on the analysis of the results of the evaluation, the four patterns of river process of ecological restoration are put forward according to the problems of Taiping river’s river ecological process.Four optimization patterns are put forward aiming at ecological process restoration of the Taiping river plain section of the Qinling: the water protection pattern that the ecosystem requires water to keep; the pattern of nonpoint source pollution control that river pollution is controlled; the habitat diversity pattern that the river ecosystem biodiversity is restored; the shape recovery pattern that rivers go straight for bending.