Preliminary study on karst low-flow,drought and disaster——A case study in Guizhou Province

Because of the unique hydrological and geological conditions in karst drain areas,the relationship and the impact among karst low-flow,karst drought and karst disaster are different from these in the non-karst areas.From the angle of hydro-geography and landform in the karst areas,this paper,with a special reference to Guizhou Province,systematically defines the concepts of karst low-flow,karst drought and karst disaster,and analyzes their occurrent time and region in karst drain areas,then explores their interrelationships,in order to provide certain theories for anti-drought,disaster prevention and economic development in Guizhou.