Study On Ecological Environment Impact Of Natural Gas Long Distance Pipeline Project In Western Guangdong Based On Analytic Hierarchy Process And Fuzzy Comprehensive Evaluation

The construction of long distance natural gas transmission pipeline promotes the rapid economic development of western Guangdong,and at the same time,it will have different degrees of influence on the ecological environment along the pipeline in the stages of design,construction and operation.Therefore,it is of great significance for the construction of local ecological civilization to carry out the ecological environment impact analysis of the long distance natural gas pipeline project in western Guangdong and put forward the research of rational design,construction and operation.In this thesis,based on the background and significance of the maoming-Yangjiang line project construction project of the main natural gas pipeline network in western Guangdong,the ecological environmental impact assessment method of the long distance natural gas pipeline is constructed by combining the technical specifications and standards of project construction.Focusing on the west of Guangdong and providing theoretical support,practical experience and reference for the ecological environmental impact of other types of linear engineering in the region and the construction of natural gas long-distance pipeline projects in other areas.This thesis mainly discusses the rationality and logicality of ahp and fuzzy comprehensive evaluation method in ecological environment evaluation of long distance natural gas pipeline project in western Guangdong by grasping the relevant research status at home and abroad on ecological environment impact assessment of long distance natural gas pipeline construction.From the perspective of project implementer,the ecological influence factors of such projects as well as the characteristics in the implementation process of the project are identified based on the implementation of the design scheme and construction scheme in the specific implementation process.Out of the water environment,soil and atmospheric environment,affects local climate,vegetation,water loss and soil erosion,landform,the landscape pattern,and the micro aspects of using pressure state response model selection index,using the analytic hierarchy process(ahp)and fuzzy comprehensive evaluation method to establish model of quantitative calculation,analysis and evaluation the yuexi region ecological environmental impact of project of gas transmission pipeline.Based on the analytic hierarchy process and fuzzy comprehensive evaluation method,the impact of the construction of the main natural gas pipeline network in western Guangdong on the ecological environment is evaluated.It is concluded that the ecological environment of the main natural gas pipeline network project has been moderately protected and disturbed.Through the design and construction according to the drawings,the scheme is better,and the self-regulation cycle of the system is relatively long.It fully shows that the ecological environment of the long-distance natural gas transmission pipeline project in this area still needs to be improved in terms of preliminary planning,design and implementation,so that the ecological environment of the long-distance natural gas transmission pipeline project has not been well protected and compensated.The conclusion is similar to the results of the EIA report,which further verifies the feasibility of the preliminary EIA report of the project,and more effectively explains the accuracy of the project implementation and the scientificity of the preliminary prediction.