To understand the spatio-temporal changes in water resources carrying capacity (WRCC) of Pearl River Delta (PRD), 19 indicators were selected from three subsystems (water resources, socio-economic, and eco-environment), entropy weight-TOPSIS model was employed to analyze WRCC each cities PRD 2015 2020. As result shows, subsystem (WRS) had largest weight evaluation system, followed by socio-econ...