基于GIS技术的汶川县生态敏感性分析

以汶川县域的生态敏感性问题为研究对象,选取自然生态因子、生态服务因子、灾害风险因子等作为关键因子,运用ArcGIS 9.0软件分别采取单因子评价和多因子综合评价,进行生态敏感性分析评价.结果表明:汶川县生态敏感性在空间分布上呈显著差异性,非敏感区、低敏感区、中敏感区、高敏感区和极高敏感区分别占总面积的12.55%、9.96%、41.8%、26.94%和8.75%.结合生态敏感性,提出分区环境保护对策和产业调整方向,为汶川县未来产业布局、区域生态环境保护及灾后重建提供决策依据.

Abstract：

In the present study, natural ecology factors, ecology service factors and disaster risk factors are chosen as key factors to make single factor analysis and multi-factor analysis of the ecological sensitivity of Wenchuan country with the software ArcGIS 9.0. The result show that the space distribution of ecology sensitivity of the country is significantly different and non-sensitive, low sensitive, moderately sensitive,highly sensitive and super highly sensitive regions accounted for 12.55%, 9.96%, 41.8%, 26.94% and 8. 75% of the total area, respectively. Considering the ecology sensitivity, the author puts forward some measures for environment protection and industrial re-adjustment of the country.

Ecological Sensitivity Analysis of Wenchuan Country Based on GIS Technology