Study On The Interaction Between Groundwater And Surface Water In Kreuk Lake Area,Qaidam Basin

The Kreuk Lake area is located in the northeast of the Qaidam Basin and the west to the city of Delingha,it is a local eco-environmental protection area.With the rapid development of the regional economy and society,the local residents have a great demand for water resources,the water demand increases rapidly,the irrational exploitation and utilization caused a series of adverse consequences,the ecological environment becomes more fragile,so it is necessary to study the utilization and protection of water resources in the area.In Delingha region,the climate is dry and the precipitation is scarce.If the ecological environment of the lake area is destroyed,the environment will deteriorate,which seriously affects the people's living environment and the local economic development.There are two main lakes in the Kreuk Lake area,Kreuk lake and tuosu lake,in the east of Kreuk lake thereis a long 20 km marsh wetland,which constitutes a natural oasis.The total precipitation in the lake area is scarce,the evaporation is strong,the large area of salt water is distributed,the fresh water resources are scarce in the region,it has caused great inconvenience to the lives of local residents,seriously affects the development of industry and agriculture in and around the lake area,and restricts the local social and economic development.The interaction between groundwater and surface water exists universally in nature,studying the interaction can get the change of water volume.The groundwater is closely related to the surface water in the Kreuk Lake area,the study of interaction between groundwater and surface water has a certain role in understanding the sustainable supply of lake water and the source of water supply,providing a basis for the protection of the ecological environment in the lake area.Therefore,it is of great significance to carry out the local hydrogeological research,establish the groundwater model of the Kreuk Lake area and analyze the water balance and the interaction between the groundwater and the surface water for the protection of regional ecology and environment and the planning of its construction.On the basis of the comprehensive collection of geological,and hydrogeological meteorological data in the Kreuk Lake area,this paper delineated the scope of the study area,analyzed the formation conditions in the study area in detail,established the three-dimensional formation model of the Kreuk Lake area using GMS software,and constructed the water bearing layer space structure in the study area.According to the data of hydrogeology and meteorology,the lateral boundary and vertical boundary are generalized,the hydrogeological parameters and main supplement of each aquifer in the Kreuk Lake area are determined,and the hydrogeological conceptual model of the study area is established.Then the numerical model of groundwater flow is set up,and the calculation results are obtained through the model calculation,and then analyze the water balance and the interaction between groundwater and surface water in Kreuk Lake area,to provide a scientific basis for rational exploitation and utilization of groundwater resources,the healthy and coordinated development of local economy and ecological environment in the future.