Variations and drivers of terrestrial water storage in ten basins of China

• DOI: 10.1016/j.ejrh.2022.101286
• Publication Date: 2022-12-05T22:23:25Z
• Authors: Beibei Yang; Yuanxi Li; Chongxin Tao; Changlu Cui; Fengmin Hu; Qian Cui; Lingkui Meng; Wen Zhang
• Keywords: Water storage

Ten major river basins in China. The spatial and temporal distribution of terrestrial water storage (TWS) China is significantly affected by global climate change increased human activity. In this study, we analyzed the variability TWS ten Chinese based on data Gravity Recovery Climate Experiment (GRACE). To discuss driving force TWS, assessed relative contributions time lags precipitation (P), evapotranspiration (ET), runoff (R) to using Spearman correlation analysis partial least squares regression (PLS). Results indicate that: (1) generally shows a reduction trend at rate 1.58 ± 0.067 mm/a from 2003 2020, with most significant decreasing September (−2.77 0.070 mm/a). (2) P, ET, R are 29.89 6.98%, 31.03 6.92% 39.09 10.82%, respectively, more prominent low-latitude regions than high-latitude regions. (3) best-correlated lag times were 1–2 months between P responses. (4) Melting snow, ice groundwater extraction may have weakened response northern climate. results provide insight into variation storage, which can basis for scientific effective management resources.