Taking the view area of Panzhihua city as an example

the suitability appraisement and regionalization of vegetation rehabilitation was undertaken in the dry hot valley by using GIS technique. Thinking of the importance to vegetation growth and distribution

some factors were considered. They were the elevation

the aspect

the slope degredient

the soil depth and the lithological composition. The weighs and the suitability values of selected factors were given through expert method. Through data dealling

spatial analyzing and model establishing and data handling

the vegetation rehabilitation suitability map was obtained. After that

the value of suitability appraisement was reclassified and merged. The area of Vegetation rehabilitation was divided into five types: suitable zone

less suitable zone

less unsuitable zone

unsuitable zone and extreme unsuitable zone. In the end the map of vegetation rehabilitation was gotten.