Study On The Functional Division Of Lugu Lake Wetland Nature Reserve Based On Ecological Sensitivity Analysis

To planning study of nature reserves,can be targeted to preserve the ecological environment,the main object of protection control of important natural resources such as protection,nature reserve planning based on ecological sensitivity analysis is the scientific planning of the quantitative and qualitative analysis method,through the analysis of index selection,can not only from a macro perspective to grasp the overall nature reserve habitat,also can to protect the main protected objects accurately.In recent years,due to the sudden increase of tourists,poor management and low awareness of protection,the ecological environment of lugu lake wetland nature reserve began to deteriorate,resulting in habitat problems such as soil erosion and water eutrophication.In front of the habitat deterioration in lugu lake wetland nature reserve,in order to in lugu lake wetland nature reserve area habitat for better protection,protection object,reasonable functional zoning is an essential part of thesis to lugu lake wetland nature reserve as the research object,using the methods of analytic hierarchy,the superposition of multiple factor,follow the "index selection,weight calculation,sensitivity analysis-sensitive function regionalization-protection Suggestions and development strategy of" the main research analysis,analysis of the sensitivity of the study area distribution and function division,through the reasonable functional zoning,restrict human activity area,In order to guide the healthy development of the ecological environment in the reserve,reasonable space for the survival and restoration of the ecosystem is given.The specific results are as follows:(1)through the analysis of the current situation of lugu lake wetland nature reserve,the frequency analysis of relevant research indicators and the consultation of Delphi experts,eleven analysis indicators of habitat,human activities and geological disasters in the nature reserve were determined,and the weight values were determined according to their importance by using analytic hierarchy process.They are elevation 0.0577,slope 0.0264,slope direction 0.0373,water buffer 0.1265,rare vegetation 0.3410,vegetation coverage 0.0831,soil type 0.0214,land cover 0.1169,slope 0.0304,road buffer 0.0398,landscape resources 0.1194.(2)carry out single-factor analysis on 11 indicators one by one,and divide them into 5 levels according to the level of ecological sensitivity index: Extremely sensitive,highly sensitive,moderate sensitive and low sensitive and low sensitive,using ArcGIS for each analysis indicators into 30 m * 30 m GRID format of raster data,according to the weight of expert judgment matrix as a result,the weighted superposition,get the lugu lake wetland sensitivity between 1.5761 7.6751,lowsensitive to an area of 1519 hectares,accounting for more than 9%,low sensitive to an area of 4764 hectares,accounting for more than 28%,in the sensitive area accounted for 24%,covers an area of 4115 hectares,high sensitive area accounted for17%,covers an area of 2775 hectares,Extremely sensitive area 3694 hectares,accounting for 22%.(3)according to the ecological sensitivity analysis results,based on "about establish a national park as the main body of the natural protected area system guidance,put forward the general control area--core area as the target partition planning and general control area of 6485.8 hectares,accounting for more than 38%,contain low sensitivity,low sensitivity,core area covers an area of 10381.2 hectares,accounting for more than 62%,contain in the sensitive area,high sensitivity and very sensitive.(5)on the basis of the complete functional area division,according to the divisions of nature reserve of lugu lake wetland nature reserve to provide advice,environmental protection and development strategy for reserve the control population research,lugu lake,habitat construction,resources control,produce the protection of the ecological restoration as the main measures and strengthen the functions of center towns,adjusting the industrial structure and the development of mosuo culture development strategy.