Water Conservation Service Assessment and Its Spatiotemporal Features in National Key Ecological Function Zones

Figure 1

Distribution and location of national key ecological function zones: 1: grassland desertification control region in Arkin (GA); 2: mountain forest steppe region in Altai (MA); 3: forest region in the edge of southeastern Tibet (FT); 4: desert region of Qiangtong Plateau in the northwestern Tibet (DT); 5: forest and biodiversity in Sichuan and Yunnan (FY); 6: soil and water conservation region in Dabie Mountain (SM); 7: forest region in greater and lesser Hinggan Mountains (FM); 8: important water supply region of the Yellow River in Gannan (IG); 9: karst rocky desertification region in Guangxi, Guizhou, and Yunnan (KY); 10: tropical rainforest region of central Hainan Island (TI); 11: grassland meadow region in Hulun Buir (GB); 12: hilly and gully region of Loess Plateau (HP); 13: Hunshandake desertification region (HD); 14: grassland desert region of Horqin (GH); 15: forest and biodiversity region in Nanling Mountain (FNM); 16: glacier and water conservation region in Qilian Mountain (GM); 17: biodiversity region in Qinba (BQ); 18: grassland wetland region of Ruoergai (GR); 19: wetland region of Sanjiang plain (WS); 20: grassland meadow wetland region in Sanjiangyuan (GS); 21: Three Gorges Reservoir Area (TA); 22: desertification control region of Tarim River (DR); 23: biodiversity, soil conservation region in Wuling Mountains (BW); 24: grassland region in Yinshan Mountain (GYM); 25: forest region in Changbai Mountain (FCM).