其他摘要：The rationality of land use is closely related to the sustainable development of economy and so-ciety. Therefore, it is crucial to evaluate the rationality of land use. The paper based on GIS technology platform, according to the landform characteristics in the study area, selects four key ecological evaluation factors of elevation, slope, rivers and basic farmland protection area and gives the reasonable weight and index level to each factor and carry out the comprehensive evaluation of ecological sensitivity with the method of multi factor weighted superposition on the land use of Xixia County. The comprehensive evaluation result shows that the ecological sensitivity of land use of Xixia County is uneven distribution; the area of non-sensitive region is 90.82 km2, which accounting for 2.63% of the total area of land use of Xixia County; the area of low sensitive region accounting for 62.13% of the total area of land use of Xixia County is 2146.15 km2. In the moderate sensitive area, the area is 955.68 km2, and accounts for 27.26% of the total area of land use of Xixia County; the highly sensitive region accounts for 1.76% of the total area of land use of Xixia County with the area of 60.8 km2; super highly sensitive area takes up 5.81% of the total area of land use of Xixia County with 200.55 km2. Considering the evaluation result, it gives some feasible suggestions to optimize the land use, which provides valuable reference for the study of the ecological environment protection and the healthy development of the social economy.
关键词：生态敏感性 ; GIS ; 土地利用 ; 多因素加权叠加法 ; 西峡县 ; Ecological Sensitivity ; GIS ; Land Use ; The Method of Multi Factor Weighted Superposition ; Xixia County
其他关键词：生态敏感性 ; GIS ; 土地利用 ; 多因素加权叠加法 ; 西峡县 ; Ecological Sensitivity ; GIS ; Land Use ; The Method of Multi Factor Weighted Superposition ; Xixia County
