Ecological Control of Rocky Desertification in Karst Area and Its Sustainable Development

Rocky desertification,loess,desert and frozen soil are the fragile ecological area of west China,which astricted the sustainable development of the area.With the program of west development,eco-environment has been paid more attention to.Due to the wide distribution of desertification and mankind disturbance,vegetations are being destroyed gradually,soil corroded acutely,desertification worsened rapidly.In this paper,the actual situation of the desertification and its damages is analyzed.Aiming at sustainable development under the guidance of the principles of ecology and eco-economics,some ecological management measures are put forward,for the control of different-degree desertification in different areas.This will be available to the re-vegetation and the protection of the eco-environment in these areas,and there by to sustainable development.