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以东川典型干热河谷区为研究区,选取坡度、高程、河流水域、植被覆盖、地质灾害、土地利用和自然保护区等7个因子作为生态敏感性评价指标,采用GIS技术与因子加权叠加法相结合的方法对东川区生态敏感性进行综合评价,将生态敏感性程度分为高度敏感、中度敏感、低度敏感和不敏感4个等级。结果表明,东川典型干热河谷区综合生态敏感性较低,大部分地区处于中、低度敏感地区,空间分布差异明显。在生态敏感性分析的基础上,根据不同生态敏感区的实际情况提出分区保护与发展的建议,为东川区城市建设发展以及生态环境开发利用和保护提供依据。
Taking Dongchuan typical dry-hot valley area as the research area, seven factors such as slope, elevation, river waters, vegetation cover, geological disasters, land use and nature reserves were selected as ecological sensitivity evaluation indexes. GIS technology and factor weighted stacking Method of combining the ecological sensitivity of Dongchuan comprehensive evaluation of the ecological sensitivity is divided into highly sensitive, moderately sensitive, low-sensitive and insensitive four levels. The results showed that the comprehensive ecological sensitivity of the typical dry-hot valley in Dongchuan was low, and most of the areas were in medium and low sensitive areas with obvious spatial distribution differences. Based on the analysis of ecological sensitivity, the suggestions of zoning protection and development are put forward according to the actual situation of different ecologically sensitive areas, providing the basis for the urban construction and development, ecological environment development and protection in Dongchuan District.