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Attribution analysis for water yield service based on the geographical detector method:A case study of the Hengduan Mountain region

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Journal of Geographical Sciences 2020年第6期30卷 1005-1020页

作者： DAI Erfu WANG Yahui Lhasa Plateau Ecosystem Research Station Key Laboratory of Ecosystem Network Observation and Mod-elingInstitute of Geographic Sciences and Natural Resources ResearchCASBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China

Ecosystem services,which include water yield services,have been incorporated into decision processes of regional land use planning and sustainable *** pattern characteristics and identification of factors that influence water yield are the basis for decision ***,there are limited studies on the driving mechanisms that affect the spatial heterogeneity of ecosystem *** this study,we used the Hengduan Mountain region in southwest China,with obvious spatial heterogeneity,as the research *** water yield module in the InVEST software was used to simulate the spatial distribution of water ***,quantitative attribution analysis was conducted for various geomorphological and climatic zones in the Hengduan Mountain region by using the geographical detector *** factors,such as climate,topography,soil,vegetation type,and land use type and pattern,were taken into consideration for this *** key findings were ***,water yield spatial heterogeneity is influenced most by climate-related factors,where precipitation and evapotranspiration are the dominant ***,the relative importance of each impact factor to the water yield heterogeneity differs significantly by geomorphological and climatic *** flat areas,the influence of evapotranspiration is higher than that of *** relief increases,the importance of precipitation increases and eventually,it becomes the most influential *** is the most influential factor in a plateau climate zone,while in the mid-subtropical zone,precipitation is the main controlling ***,land use type is also an important driving force in flat ***,more attention should be paid to urbanization and land use planning,which involves land use changes,to mitigate the impact on water yield spatial *** fourth finding was that a risk detector showed that Primarosol and Anthropogenic soil areas,shrub areas,and areas with sl

关键词： water yield service Hengduan Mountain region InVEST software geographical detector attribution analysis

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Spatially-explicit quantitative relationship for a potential PES mechanism:Cascade hydropower development in Yarlung Zangbo River Basin, China

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Journal of Mountain Science 2022年第4期19卷 925-944页

作者： ZHU Xiao-kang FU Bin Ramon Felipe BICUDO DA SILVA GUO Ying-man QIN Chan-yuan FENG Ting YU Hai-bing XIAO Kuang Institute of Mountain Hazards and Environment Chinese Academy of SciencesChengdu 610041China University of Chinese Academy of Sciences Beijing 100049China Xihua University Chengdu 610039China Sichuan Provincial Chengdu Ecological and Environmental Monitoring Center Station Chengdu 610041China Center for Systems Integration and Sustainability Department of Fisheries and WildlifeMichigan State UniversityEast Lansing MI 48823USA Center for Environmental Studies and Research State University of CampinasCampinas 13083-867Brazil

Payment for ecosystem services(PES) is of great importance for the sustainable development of mountain areas, key hotspot regions for the provisioning of ecosystem services. At present, PES researches mainly focus on forest protection, carbon sink trading, and water protection. As an important industry in mountainous areas, cascade hydropower development has generated substantial economic benefits accompanied by social and ecological impacts. However, efficient PES mechanisms to deal with hydropower generation in mountain areas are still unavailable. Therefore, the lacking of PES in mountain systems limits the development of those areas, and compromise the sustainability of hydropower development. The critical reason lies in the lack of a scientific method that can quantitatively analyze the relationship of hydropower stations with a geographical scope at county level(i.e., quantifying the water yield service provided by each county within the cascade hydropower development basin), and with different hydropower enterprises. We use the Yarlung Zangbo River Basin of China as case study area, one of the major hydropower development basins in China. First, we used Integrated Valuation of Ecosystem services and Tradeoffs(InVEST) model to map water yield service. Then, we calculated the value of water yield service by relating the water yield to the gross output value of hydropower stations. We revealed the relationship(e.g., hydropower stations and identified counties) between the payers and the payees of ecosystem services through mapping and quantifying the provisioning regions in the supply of water yield service and the users(hydropower enterprises). Finally, we discussed the current situation of benefit distribution in cascade hydropower development basin based on the supply and use of the water yield service. The results showed that 1) the spatial distribution of the value of water yield service is uneven: the upper reaches are highvalue areas;the eastern region is

关键词： water yield service Relationship Hydropower development InVEST model QinghaiTibet Plateau

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