| Yanbian area locates in the eastern part of Jilin province,it is a vast and sparsely populated territory.It has important economic and political status.It is not only an important part of "Chang-Ji-Tu" economic circle,also an important import and export of foreign trade and economic.In recent years,with the fast development of regional economy,the human economic development activities on the influence of geological environment in the area is growing gradually.Even it appeared on exchange for economic growth at the expense of the environment of the phenomenon.With the improving of the national emphasis to environmental problems,geological environment as the important carrier of people's life and production has received more and more attention.Therefore,we completes the geological environment comprehensive evaluation,the scientific and reasonable judgments on the regional geological environment,not only can provide powerful guarantee to the regional economic production life,the more able to provide a scientific basis for the management of economic construction.Based on the above,this article based on "Yan-Long-Tu regional environmental geology survey assessment" survey,in the collection of information related to the regional geological environment,field hydrogeology,environmental geology,engineering geology investigation,on the basis of application of hierarchical analysis,fuzzy comprehensive evaluation method of the workspace has carried on the comprehensive evaluation of geological environment conditions.Firstly,the following three areas of natural geography is presented,in this paper,and the groundwater mining,the mine geological environment problems,geological disasters,such as soil pollution survey results are discussed;Secondly,according to the principle of fuzzy comprehensive evaluation of geological environment condition has carried on the classification,divided into two level 10 secondary evaluation index,respectively: mining,abandoned mine pressure of destruction of land area,such as mining damage to the surrounding aquifers,groundwater resources development and utilization situation,collapse,landslide,debris flow,ground collapse,geological hazard point surface density,groundwater pollution and soil pollution.And mesh dissection of the study area,which is divided into 332 cells;Thirdly,using the analytic hierarchy process,fuzzy comprehensive evaluation method to calculate the weight of each evaluation factor value,calculated maximum membership degree,the corresponding evaluation results of "optimal" respectively "good" "bad" 3 levels.The evaluation results of each cell,which can evaluate the merits of the regional geological environmental conditions;Finally,combining with the evaluation results of delay by the development of the regional geological environment put forward reasonable Suggestions,provides the resources reasonable development and utilization of the region with certain scientific basis. |
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