China 128 Water 123 Ecosystems 122 Water quality 108 Article 107 water 105 Rivers 84 Climate change 82 chemistry 77 controlled study 71 human 63 Water supply 62 nonhuman 61 water quality 59 Lakes 58 Surface waters 55 climate change 55 Humans 51 Indicator indicator 51 Wastewater treatment 50 Land use 47 Reservoirs (water) 47 male 47 Forestry 46 Water conservation 44 Sustainable development 43 spatiotemporal analysis 42 Floods 40 Soil moisture 39 United States 39