STORAGE STRUCTURE AND SUPPLY CAPACITY OF KARST WATER IN NORTHERN XINGLONG COUNTY, HEBEI PROVINCE

The abundant karst water resources in the northern Xinglong County of Chengde City, Hebei Province, serve as the major water supplies for production and daily life of local residents. The basic hydrogeological conditions in the area are identified with karst water as the main study object in the 1: 50 000 hydrogeological survey. Through the classification of water-bearing rock formations and analysis of the storage structure characteristics of regional karst water, the study area is divided into the main water storage structures of Liuhe river basin and Qaibai river basin in the lower reaches of Luanhe River Basin. Three exploration-mining combination boreholes and three construction matching observation wells are applied for the analysis and evaluation of water supply capacity of boreholes, to provide scientific basis for rational development and utilization of karst groundwater resources in the area.