The Weibei Buried Karst Water Circulation Patterns And Can Be Updated

Using environmental isotopes we have analyzed the recharge mechanism and recycling type of the lie concealed karst water system in the east of Weibei and have built environmental effect model of precipitation , hydrogeology model of the karst water and exponential-piston model of environmental isotope tritium.Though the study of environmental isotopes in the study area, we analyzed the conversion of the surface water , precipitation and groundwater. Precipitation is the origin recharge of the karst water, and there is a strong relationship between the surface water and shallow groundwater. Surface water recharge groundwater 74. 3%. Karst exploited area in the west of study area is the supply area , and in the middle part of study area, such structural belts as rupturing , horst , graben , etc. are flow area, and the spring area in the east and the southeast are the eliminating area. Eastern and western karst water belong to one karst water system, from west to east ,along Baishuishangwang—Chengchengxitou—Heichi has a strong runoff belt which is the available groundwater development zone. There is an underground watershed between the Huanghe River and Luohe River which has no obvious effect on the runoff. Through the environmental tritium dating method, using the exponential model and the exponential-piston model to calculate the age of the groundwater and draw the age contour on the direction of flow on which we circle the strong runoff area .we have calculated the storage capacity, coefficient of storage and coefficient of permeability and other hydrogeology paraments, supplying basic data for quantitative assessment on renewable property of the karst water.