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Climate change indirectly enhances sandstorm prevention services by altering ecosystem patterns on the Qinghai-Tibet Plateau

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Journal of Mountain Science 2021年第7期18卷 1711-1724页

作者： MENG Nan YANG Yan-zheng ZHENG Hua LI Ruo-nan State Key Laboratory of Urban and Regional Ecology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing100085China University of Chinese Academy of Sciences Beijing100049China View author publications

Climate change influences both ecosystems and ecosystem *** impacts of climate change on ecosystems and ecosystem services have been separately ***,it is less well known how ecosystem changes driven by climate change will influence ecosystem services,especially in climate-sensitive ***,we analyzed future climate trends between 2040 and 2100 under four Shared Socioeconomic Pathway(SSP) scenarios(SSP1-2.6,SSP2-4.5,SSP3-7.0,and SSP5-8.5) from the Coupled Model Intercomparison Project 6(CMIP6).We quantified their impacts on ecosystems patterns and on the ecosystem service of sandstorm prevention on the Qinghai-Tibet Plateau(QTP),one of the most climate-sensitive regions in the world,using Random Forest model(RF) and revised wind erosion equation(RWEQ).Strong warming(0.04℃/yr) and wetting(0.65 mm/yr) trends were projected from 2015 to *** these trends,there will be increased interspersion in the pattern of grassland and sparse vegetation with meadow and swamp vegetation,although their overall area will remain similar,while the areas of shrub and needleleaved forest classes will increase and move toward higher *** by the changes in ecosystem patterns caused by climate change indirectly,grassland will play an irreplaceable role in providing sandstorm prevention services,and sandstorm prevention services will increase gradually from 2040 to 2100(1.059-1.070 billion tons) on the ***,some areas show a risk of deterioration in the future and these should be the focus of ecological *** research helps to understand the cascading relationship among climate change,ecosystem patterns and ecosystem services,which provides important spatio-temporal information for future ecosystem service management.

关键词： Qinghai-Tibet Plateau Climate change Sandstorm prevention services Coupled Model Intercomparison Project 6 Random Forest model revised wind erosion equation

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Evaluation of Inner Mongolia wind erosion Prevention Service based on Land Use and the RWEQ Model

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Journal of Resources and Ecology 2022年第5期13卷 763-774页

作者： WANG Yangyang XIAO Yu XU Jie XIE Gaodi QIN Keyu LIU Jingya NIU Yingnan GAN Shuang HUANG Mengdong Institute of Geographic Sciences and Natural Resources Research Chinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China Beijing Forestry University Beijing 100083China

Inner Mongolia is the important ecological barrier zone in northern China,which plays an important role in the prevention and control of wind in the regional *** on the revised wind erosion equation(RWEQ)model and the cost-recovery method,this study simulated the wind erosion prevention service(WEPS)in Inner Mongolia in 2010 and 2015,investigated the spatial pattern of material and monetary value of WEPS,and analyzed the differences among various cities and various *** results indicated that the total WEPS of Inner Mongolia was estimated to be 73.87×10^(8) t in 2015,which was 4.61×10^(8) t less than in 2010,while the monetary value of WEPS was calculated to be 738.66×10^(8) yuan in 2015,which was 46.16×10^(8) yuan less than in *** all the leagues and cities,Xilin Gol League supported the highest WEPS,reaching 18.65×10^(8) t in 2015,while Wuhai provided the *** WEPS of Hulunbeier increased the most,by 4.37×10^(8) t from 2010 to *** WEPS in the grassland ecosystem was the highest among the different ecosystems,accounting for more than55%of the total WEPS in Inner Mongolia,but it was reduced by 1.05×10^(8) t during the same *** WEPS in the forest ecosystem increased the most,reaching 0.19×10^(8) *** study found that the implementation of projects such as returning farmland to forests and grasses and sand control effectively increased the WEPS by increasing the forest ***,unsuitable land use increased the desertification of ecosystems which resulted in a reduction of WEPS in Inner Mongolia.

关键词： wind erosion prevention service revised wind erosion equation ecological technology

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