Modeling hydrological consequences of 21st-Century climate and land use/land cover changes in a mid-high latitude watershed

作者：Chuanqi Liu, Chi Xu, Zhijie Zhang, Shengqing Xiong, Wanchang Zhang, Bo Zhang, Hao Chen, Yongxin Xu, Shuhang Wang · 发表于：Geoscience Frontiers · 年份：2024 · DOI：10.1016/j.gsf.2024.101819 · 被引用次数：25 · 研究领域：Hydrology and Watershed Management Studies、Cryospheric studies and observations、Climate variability and models

The Naoli River Basin (NRB), a pivotal agricultural production area in China, is poised to undergo substantial impacts on water resources due to projected climate and land use/cover (LULC) changes. Despite its significance in the context of China's expanding farmland construction in the NRB, there exists limited research on the potential repercussions of future shifts in runoff, soil water content (SWC), and evapotranspiration (ET) on crop productivity and water availability (both in terms of quantity and timing). This study employs future LULC maps and an ensemble of ten CMIP6 Global Climate Models (GCMs) across three scenarios to drive the well-calibrated distributed hydrological model, ESSI-3. The objective of present study is aimed on projecting hydrological consequences under climate and land use/land cover changes in near-term (2026–2050), middle-term (2051–2075), and far-term (2076–2100) future in comparison to the baseline period of 1990–2014. Results consistently indicate an increase trend in annual average ET, runoff, and SWC in the NRB across all three future periods under the three SSP scenarios. LULC changes emerge as the primary driver influencing regional hydrological processes in the near future. Notably, under high-emission scenarios, monthly runoff and SWC are projected to significantly increase in March but decrease in April during the middle and far future periods compared to the baseline. This shift is attributed to the anticipated warming of winter and s...