Table 2.

Description of the dataset used in this study.

Data type	Description	Data source
DEM data	The spatial resolution of 90 m	Geospatial Data Cloud
Climate data	Daily data from 25 meteorological stations, including precipitation, temperature, wind speed, solar radiation, humidity	China Meteorological Data Service Center (CMDC)
Land use data	LUCC1990, LUCC 2000, LUCC 2010 with a spatial resolution of 1 km	National Earth System Science Data Sharing Infrastructure
Soil data	The spatial resolution of 1 km	Food and Agriculture Organization of the United Nations (FAO)
Hydrological data	Monthly runoff data from 4 hydrological stations	Yangtze River Water Conservancy Commission
Water demand data	Water demand for different users	Integrated Water Resources Planning of Han River basin
Reservoir data	Large or medium-size reservoirs	Hubei Institute of Water Resources Survey and Design