A Study on the Response of Surface Water and Groundwater Interaction to River Runoff in the Taoer River Alluvial Fan

Abstract

Understanding the transformation mechanisms of surface water and groundwater positively impacts the rational utilization of water resources and the more scientific allocation of their uses. Many factors affect surface water and groundwater interaction (SGWI), among which river runoff is the most critical variable. Studying the response mechanism of SGWI under changes in river channel volume can help understand the essence of SGWI. Using the Taoer River alluvial fan as the research area, daily runoff data from hydrological stations in the study area from January to March 1961, 1971, 1981, 1991, 2001, and 2011 were collected. The daily SGWI was calculated using the water balance and flow speed difference methods. The results show that river runoff is the main factor controlling the SGWI, and the interaction quantity (IQ) is more stable when the IQ is relatively small.