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Evolutionary mechanisms of water conservation services in the Yarlung Zangbo River
Study region: Yarlung Zangbo River, a major component of the ''Asian Water Tower'' located in the southern Tibetan Plateau, is designated as an important water conservation functional reserve due to its highly fragile ecosystem. Study focus: This study comprehensively analyzed the uncertainties associated with applying the InVEST model in plateau regions across multiple scales. Quantified water conservation and assessed the contributions of primary driving factors in the study area. Predicted future changes in water conservation under scenarios of climate change and land use/cover alterations.New hydrological insights for the region: The results demonstrated that InVEST can accurately simulate water yield; however, its performance in simulating water conservation is inferior to conventional distributed hydrological models and is predominantly observed in areas with high human activity. Precipitation and LUCC exhibit the highest explanatory power for the spatial heterogeneity of water conservation (0.66，0.33). From 1990–2020, the average annual water conservation in the study area was 53 mm, with an annual reduction of 41.4 × 106 m³ over this period. The spatial trend shows a gradual decrease from west to east. For the future, part of bare land areas will be covered by grassland and woodland; water conservation is expected to show an upward trend. This research addresses the uncertainty gap in water conservation assessment and prediction in plateau regions.
Evolutionary mechanisms of water conservation services in the Yarlung Zangbo River
Study region: Yarlung Zangbo River, a major component of the ''Asian Water Tower'' located in the southern Tibetan Plateau, is designated as an important water conservation functional reserve due to its highly fragile ecosystem. Study focus: This study comprehensively analyzed the uncertainties associated with applying the InVEST model in plateau regions across multiple scales. Quantified water conservation and assessed the contributions of primary driving factors in the study area. Predicted future changes in water conservation under scenarios of climate change and land use/cover alterations.New hydrological insights for the region: The results demonstrated that InVEST can accurately simulate water yield; however, its performance in simulating water conservation is inferior to conventional distributed hydrological models and is predominantly observed in areas with high human activity. Precipitation and LUCC exhibit the highest explanatory power for the spatial heterogeneity of water conservation (0.66，0.33). From 1990–2020, the average annual water conservation in the study area was 53 mm, with an annual reduction of 41.4 × 106 m³ over this period. The spatial trend shows a gradual decrease from west to east. For the future, part of bare land areas will be covered by grassland and woodland; water conservation is expected to show an upward trend. This research addresses the uncertainty gap in water conservation assessment and prediction in plateau regions.
Evolutionary mechanisms of water conservation services in the Yarlung Zangbo River
Ding Hua (author) / Xingguo Mo (author) / Shi Hu (author) / Xianfang Song (author)
2025
Article (Journal)
Electronic Resource
Unknown
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Evolutionary mechanisms of water conservation services in the Yarlung Zangbo River
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