The distribution of rocky desertification in different types of land use was identified on SPOT imagery(2.5 m resolution) with 3S technology.The results indicate that

rocky desertification(over mild degree of desertification) occurred in parts of cultivated lands

shrub lands

sparse woodlands and/or grasslands.According to the habitat characteristics and social economic development of the upstream

midstream

and downstream areas in Shiqiao catchment

engineering and biological measures of desertification control were suggested as followed:(1) Practicing intercropping and rotation of tree—grass

tree—crop

crop—grass in sloped farmland as breakthrough points of ecological construction under high population pressure;(2) Optimizing water resource network of water pumps

head tanks and channels as the kernel;(3) Developing a suburban hybrid industry of agriculture

forestry and animal husbandry as a ecological system to promote rural economic growth in future.Finally

water and soil loss

rocky desertification will be controlled with soil erosion reduction of 32%

income increase of 533 yuan per capita

and sustainable ecology

economy and society.