Role of reservoir regulation and groundwater feedback in a simulated ground‐soil‐vegetation continuum: A long‐term regional scale analysis

The regional terrestrial water cycle is strongly altered by human activities. Among them, reservoir regulation a way to spatially and temporally allocate resources in basin for multi-purposes. However, it still not sufficiently understood how modifies the terrestrial- subsequently, atmospheric cycle. To address this question, representation of into component fully coupled Earth system models required. In study, an existing process-based network module implemented NOAH-HMS, that is, atmospheric–hydrologic modelling system, namely, WRF-HMS. It allows quantitatively differentiate role groundwater feedback simulated ground-soil-vegetation continuum. Our study focuses on Poyang Lake basin, where largest freshwater lake China reservoirs different sizes are located. As compared streamflow observations, newly extended NOAH-HMS slightly improves duration curves simulation period 1979–1986. inclusion leads major changes recharges evaporation from at local scale, but has minor effects soil moisture surface runoff scale. performed sensitivity analysis shows strength consideration regulation. Furthermore, both modify partitioning evapotranspiration, thus affecting region. This finding motivates future research with our community.