Fig. 4: Surface water area, terrestrial water storage, and the standardized precipitation–evapotranspiration index at the provincial scale.
From: Gainers and losers of surface and terrestrial water resources in China during 1989–2016

a Chongqing. b Hubei. c Jiangxi. d Shandong. e Tibet. f Qinghai Province. The SPEI is the standardized precipitation-evapotranspiration index. The dashed lines and the numbers in subfigure (a–c) showed the water level (H) of the Three Gorge Reservoir and their corresponding years. The EUWR project in Shandong Province is the Ecological Urgent Water Replenishing (EUWR) project to divert water from the Yangtze River to Nansihu Lake during 2002–2003.