Existent nature reserves not optimal for water service provision and conservation on the Qinghai-Tibet Plateau of China

Lu, Da Yong; Lü, Yihe; Gao, Guangyao; Wu, Bingfang; Fu, Bojie

doi:10.1016/j.gecco.2021.e01945

Cited by 3 publications

(1 citation statement)

References 45 publications

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“…The ecological process in which ecosystems intercept precipitation, store and purify water, and maintain the normal functioning of the ecosystem is referred to as water conservation. It is essential for human survival and development [75]. The contribution of each landscape to water production is determined by regional annual water production, which is obtained from annual precipitation minus actual evapotranspiration [76].…”

Section: • Water Conservationmentioning

confidence: 99%

Construction of an Ecological Security Pattern and the Evaluation of Corridor Priority Based on ESV and the “Importance–Connectivity” Index: A Case Study of Sichuan Province, China

et al. 2022

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Constructing an ecological security pattern (ESP) is an important means to describe, manage, and control ecological security. However, there are few related studies on functional analyses and evaluations of landscape elements, and the distribution of identified elements cannot fully reflect reality. To accurately depict ecological security and strengthen the role of landscape planning for policy formulation, we used the spatial distribution patterns of ecosystem services to adjust the ecosystem service value to accurately identify the distribution of ecological sources. The gravity model and Centrality Mapper tool are used to build an “importance–connectivity” index that evaluates the importance of ecological corridors in linking the sources and the contribution to maintaining the overall connectivity of ecological networks. The results show that (1) spatial heterogeneity exists in seven kinds of ecosystem services in Sichuan Province, China, and the high-level areas are concentrated in the central region. Moreover, (2) a total of 179 ecological sources and 445 ecological corridors with woodland and grassland as the main land use types are identified, and (3) a total of 153, 49, 78, and 165 corridors are divided into high importance–high connectivity, low importance–high connectivity, high importance–low connectivity, and low importance–low connectivity ecological corridors, respectively. The study provides a new framework for the construction of an ESP and for the priority evaluation of ecological corridors. To achieve balance between economic development and environmental protection, priority should be given to the protection of high-priority corridors when maintaining ecological security.

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Section: • Water Conservationmentioning

confidence: 99%

Construction of an Ecological Security Pattern and the Evaluation of Corridor Priority Based on ESV and the “Importance–Connectivity” Index: A Case Study of Sichuan Province, China

et al. 2022

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Spatial analysis of landscape rehabilitation in degraded land along topographic variabilities in the Kiliso sub-watershed, Southern Ethiopia

Girma

2023

Forest Science and Technology

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A New Tool for Mapping Water Yield in Cold Alpine Regions

Zhao

Chen

Yang

et al. 2023

Water

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Watershed management requires reliable information about hydrologic ecosystem services (HESs) to support decision-making. In cold alpine regions, the hydrology regime is largely affected by frozen ground and snow cover. However, existing special models of ecosystem services usually ignore cryosphere elements (such as frozen ground and snow cover) when mapping water yield, which limits their application and promotion in cold alpine regions. By considering the effects of frozen ground and snow cover on water yield, a new version of the Seasonal Water Yield model (SWY) in the Integrated Valuation of Ecosystem Services and Trade-offs (InVEST) was presented and applied in the Three-River Headwaters Region (TRHR) in southeastern Qinghai-Tibetan Plateau (QTP). Our study found that incorporating the effects of frozen ground and snow cover improved model performance. Frozen ground acts as a low permeable layer, reducing water infiltration, while snow cover affects water yield through processes of melting and sublimation. Both of these factors can significantly impact the distribution of spatial and temporal quickflow and baseflow. The annual average baseflow and water yield of the TRHR would be overestimated by 13 mm (47.58 × 108 m3/yr) and 14 mm (51.24 × 108 m3/yr), respectively, if the effect of snow cover on them is not considered. Furthermore, if the effect of frozen ground on water yield were not accounted for, there would be an average of 6 mm of quickflow misestimated as baseflow each year. Our study emphasizes that the effects of frozen ground and snow cover on water yield cannot be ignored, particularly over extended temporal horizons and in the context of climate change. It is crucial to consider their impacts on water resources in cold alpine regions when making water-related decisions. Our study widens the application of the SWY and contributes to water-related decision-making in cold alpine regions.

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Existent nature reserves not optimal for water service provision and conservation on the Qinghai-Tibet Plateau of China

Cited by 3 publications

References 45 publications

Construction of an Ecological Security Pattern and the Evaluation of Corridor Priority Based on ESV and the “Importance–Connectivity” Index: A Case Study of Sichuan Province, China

Construction of an Ecological Security Pattern and the Evaluation of Corridor Priority Based on ESV and the “Importance–Connectivity” Index: A Case Study of Sichuan Province, China

Spatial analysis of landscape rehabilitation in degraded land along topographic variabilities in the Kiliso sub-watershed, Southern Ethiopia

A New Tool for Mapping Water Yield in Cold Alpine Regions

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