Assessment On Eco-environment Quality Of The Salt Lake In YunCheng Based On RS And GIS

Wetland ecological environmental quality assessment is judgment and evaluation towards the healthy of wetland ecological environment. Through the wetland ecological environmental quality assessment, wetland ecological system structure and function condition, pressure and the reaction can be well understood, which can provide basis for protection and recovery measures of wetland ecosystem.As one of the most ancient salt in China,YunCheng Salt Lake is precious geological heritage by geological formation, development and legacy, because of its rich mineral resources, it has been an important inorganic salt chemical industry in Shanxi Province and the pillar industry for economic development of YunCheng. Strict protection and rational utilization of the geological relics is a content in environmental protection work and social economy sustainable development strategy.Based on the summery of the domestic and overseas scholars about in wetland ecological environmental quality assessment, the paper takes the Salt Lake in YunCheng as an example and evaluats wetland ecological environmental quality. The author analies the evaluation results and puts forward the countermeasures of wetland ecological protection. This thesis consists two parts. In the first part, the author analysis the natural environment characteristics of the Salt Lake, social economic condition. Then the author applies RS, GIS technology and mathematics method to extract the wetland information according to the remote sensing image data. In the second part, the author set up a set of including pressure, state and response of the relatively complete index of wetland ecological environmental quality assessment system. Then the author uses ahp to the Salt Lake wetland ecology environment quality evaluation and gets comprehensive evaluation index. The evaluation results were analyzed, and the protection and improvement of the ecological environment of wetland countermeasures and suggestions are put forward.