Evaluations on dynamics and influencing factors of groundwater level in Dingxi City of Gansu Province and measure recommendations

JIA Cuixia; LU Bin

doi:10.3969/j.issn.1000-1123.2025.11.006

Abstract：Due to natural constraints,Dingxi City in Gansu Province faces severe water shortages and is a typical resource-based water-scarce city.With rapid economic and social development and accelerating urbanization,the contradiction between water supply and demand has become increasingly acute.In some areas,groundwater levels have continued to decline,posing a threat to the sustainable utilization of water resources and the sustainable development of the economy and society.It is essential to understand the current status of groundwater development and utilization,as well as the variations and influencing factors of groundwater levels.Based on the characteristics of local water resources,hydrogeological conditions,precipitation,groundwater types,and overexploitation status,this study focuses on overexploited areas to analyze the total volume and utilization of groundwater resources.Remote sensing data were used to retrieve the spatiotemporal variations in groundwater storage,and the dynamic patterns of groundwater levels were examined.The study also reviews the overall groundwater overexploitation in the region and the countermeasures already implemented.Key issues identified in the current integrated management of groundwater include continuously declining groundwater levels,severe water scarcity,inadequate supervision,underdeveloped water-saving mechanisms,and low utilization efficiency of water diverted from the Taohe River.Based on an analysis of the underlying causes,recommendations are proposed:defining groundwater control indicators,strengthening monitoring and supervision,improving water-saving systems,enhancing the utilization efficiency of water diverted from the Taohe River,and ensuring effective dynamic tracking and assessment.