EGU26-15021。
has superseded natural rock-water interactions in controlling the hydrochemical facies. To maintain waterecologyagriculture security in arid regions， we propose that optimizing irrigation quotas and enhancing floodwater utilization are essential for sustainable groundwater management. This research provides critical insights into the mechanism of water quality evolution under the dual pressure of climate change and human interference. How to cite: Wang， please note that Copernicus Meetings cannot accept any liability for the content and the website you will visit. Cancel Forward to presentation link You are going to open an external link to the presentation as indicated by the authors. Copernicus Meetings cannot accept any liability for the content and the website you will visit. Cancel We are sorry， to quantify the complex interactions between surface water (SW) and groundwater (GW). Our findings demonstrate that large-scale agricultural irrigation serves as the primary physical driver enhancing the intensity and frequency of SWGW exchanges. Isotopic signatures reveal that persistent irrigation return flows have strengthened the hydraulic connectivity between surface water bodies and shallow aquifers. This physical interaction further triggers significant biogeochemical responses. The irrigation-induced leaching of soil salts， W.: Agricultural Irrigation as a Dominant Driver of Surface WaterGroundwater Interactions and Hydrochemical Evolution in Arid Northwest China， China (wangwr@xju.edu.cn) Xinjiang University， College of Geography and Remote Sensing Science， College of Geography and Remote Sensing Science， China (wangwr@xju.edu.cn) In the arid plains of Northwest China， EGU General Assembly 2026， intensive agricultural activities and extreme climatic conditions have profoundly reshaped regional hydrological cycles. This study integrates hydrochemical analysis with multi-isotope tracing， with Total Dissolved Solids (TDS) values ranging from 516 to 2684 mg/L . Hydrochemical modeling confirms that anthropogenic intervention， 2026. Share Please decide on your access Please use the buttons below to download the supplementary material or to visit the external website where the presentation is linked. Regarding the external link， 3–8 May 2026。
Austria， Vienna， coupled with intensive evaporation。
including stable water isotopes (H and O) and nitrate isotopes (N and O)， is identified as the core factor governing groundwater salinization and quality deterioration， but presentations are only available for users who registered for the conference. Thank you. ， https://doi.org/10.5194/egusphere-egu26-15021， updated on 14 Mar 2026 https://doi.org/10.5194/egusphere-egu26-15021 EGU General Assembly 2026 © Author(s) 2026. This work is distributed under the Creative Commons Attribution 4.0 License. Agricultural Irrigation as a Dominant Driver of Surface WaterGroundwater Interactions and Hydrochemical Evolution in Arid Northwest China Wanrui Wang Wanrui Wang Wanrui Wang Xinjiang University。
specifically cropland expansion and groundwater overexploitation， [Back] [SessionHS10.8] EGU26-15021，。