基于GIS的仙游县土地利用与滑坡灾害敏感性分析

利用滑坡灾害敏感性系数(SCi)及确定性系数(CF)对不同土地利用类型的滑坡灾害综合敏感性进行分析.结果表明:2种系数反映的土地利用对滑坡灾害的敏感程度基本一致,但不同的土地利用类型对滑坡灾害发生的敏感性强弱不同,其中以居民点及独立工矿用地对滑坡灾害的发生最敏感,其次为园地、耕地、牧草地及林地.而敏感性较低的为其它农用地、水利设施用地和未利用地,交通运输用地在一定的缓冲带范围内对滑坡有明显的影响.

Sensibility analysis of land-use and landslide hazard based on GIS in Xianyou County

The sensitivity coefficient(SCi) and certainty factor(CF) were used to analyze the comprehensive sensitivity of landslide hazard in different land use types.Results showed: The sensitivity of landslide hazard in land use reflected by the two factors were basically consistent,but the sensitivities of landslide hazard in different land use types were in different strength,with residential,industrial and mining land,the most sensitive,followed by garden land,cultivated land,grassland and forestland.The less sensitive land use types were other agricultural land,unutilized land and land for water conservancy facilities,and transportation land had a significant impact for the landslide hazard in a certain range of the buffer zone.