Ecological Function Zoning Method Based On Rs And Gis In The County

Feng County in Shanxi Province is situated at middle the Qinling system of fold, the geologic structure is complex, the stratum differentiation is obvious, the structure deformation is intense. This article in carries on the generalized analysis to the ecology function regionalization theory and the method in the foundation, unifies the Feng County natural environment characteristic, Based on ERDAS IMAGE 8.4 and ARCGIS 9.0 to analyzes the platform for the foundation data processing, in carries on the analysis appraisal to the Feng County ecological environment present situation in the foundation, unifies the Feng County ecological environment sensitivity appraisal and the ecosystem service function importance appraisal, carries on the ecological function district to Feng County. In the district process stressed that the Feng County region landform unit the integrity as well as the socio-economic development characteristic, causes the Feng County ecological function regionalization the district process and the district result has in comprehensive, the objectivity and the practical application feasibility compared to the conventional routes under district.Feng County ecological function zoning detailed step: The first, carries on the generalized analysis appraisal to Feng County's ecological environment present situation. And then, to the Feng County ecological environment sensitivity distribution, ecosystem service function's ecology function regionalization essential factors and so on important distribution carries on the analysis appraisal separately, forms a series of same scale's appraisal graphic document. The third, based on the software ARCGIS 9.0 formidable spatial analysis function, follows the county territory ecology function regionalization the principle, refers to the small region ecology function regionalization the indicator system, refers to the Feng County ecological environment present situation analysis, carries on the space lattice image weighted stack analysis the ecological environment sensitivity distribution and the ecosystem service function importance appraisal, produces the Feng County ecology function district chart. Feng County will divide into four zone.One Northern Zhongshan forest ecology key protectorate zoneSecond Middle low wooded mountain, medicine, cultivation, minerals limit development zone Third The low mountain river valley grain, the pepper, the fruit, the cities and industry and trade optimization development zoneFouth South Zhongshan biodiversity protection and ecology tourist areaFinal, proposed that various functions area concrete development direction as well as the management countermeasure, for the Feng County ecology model district construction, the resources optimized disposition and the reasonable use as well as the Feng County territory socio-economic development and ecological environmental protection's integrated management provide scientific basis.