Gahai Wetland of Gansu and Its Biodiversity Characteristics

The main contents and the basic methods of resources investigation of Gahai wetland were dis-cussed,and the main types of wetland such as alpine meadow wetland,flooding wetland,herb peat swamps,lakes,swamp and rivers were described respectively.Furthermore,the main characteristics of Gahai wetland,biodiversity and zoogeo-graphical divisions and vegetation regionalization,hydrology and service value of ecology system were introduced emphatically in this paper.