Study On The Use Of Integrated Index Method In Regional Ecological Environmental Impact Assessment

In recent years, ecological environment protection gradually gets more attention, various methods of environmental impact assessment have emerged, but the current evaluation methods still have some shortcomings. Such as, practical disadvantages, limited to qualitative evaluation, and so on. The existing methods can not complete reflect the characteristics of the ecological environment. With the development of REIA, how to assess ecological environment quality equality of planning area has become one of major problem our study.Under the background of reviewing related literatures, this paper builds eco-environmental quality evaluation index system based on "3S" technology. In order to prove its application, this paper takes Jia Dong Industrial Park as an example. The paper acquire basic diagram of the Jia Dong Industrial Park by correcting remote sensing video,setting,cutting out and so on. After e Enhancement and processing remote sensing images, this paper obtains the value of the evaluation factors by visual interpretation, using the data, the environmental quality index value of Jia Dong industrial park can be calculated.The main contents of this paper include the following:First, in this paper, the development of domestic and foreign environmental assessment is summarized, and the advantages and disadvantages of various evaluation methods were compared. After it, the paper proposes the current environmental impact assessment problems.Secondly, under the comprehensive of the integrated index method, this paper establishes environmental quality evaluation index system of planning area. This article has solved the problems of normalization factor in the integrated index method and pollution loads index. The pollution loads index is solved by the use of environmental function, the normalization factor in the integrated index method is solved by using different normalized coefficients, which is droved from different scales.Thirdly, taking Jia Dong industrial park as an example, this paper evaluated the ecological environment equality before and after the construction of industrial area, obtained the following results:After the construction of Jia Dong industrial park, the ecological environment equality is better than the equal of Jia Yuguan City. At the national scale, the result is in the "poor" level. In response to these findings, this paper proposed the ecological restoration program and eco-building programs of Jia Dong industrial park.