Sensitivity analysis of region landslide vegetation factor based on the remote sensing and geography information system

Influence factors sensitivity analysis is a key problem for region landslide field, vegetation coverage is an important one of all factors. The type of vegetation coverage was classified by remote sensing supervised classification technology, and landslides were interpreted by the three dimension image of remote sensing. The internal relation between landslides and the type of vegetation coverage was revealed by spatial analysis method of geography information system. Contribution rate of every coverage factor for the landslide was obtained. The conclusion gives the support for the policy of conversion of cropland to forest, and lays a foundation for the research of region landslides prediction. It shows that the technology of remote sensing and geography information system have a special advantage for the sensitivity analysis of region landslides influence factors.