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What drives the vegetation dynamics in the Hengduan Mountain region, southwest China: Climate change or human activity?
Yin, Le1,3; Dai, Erfu2,3; Zheng, Du1,3; Wang, Yahui2,3; Ma, Liang2,3; Tong, Miao2,3
2020-05-01
Source PublicationECOLOGICAL INDICATORS
ISSN1470-160X
Volume112Pages:12
Corresponding AuthorDai, Erfu(daief@igsnrr.ac.cn)
AbstractQuantitatively identifying the relative contributions of climate change and human activity to net primary productivity (NPP) is critical for understanding vegetation dynamics and maintaining regional carbon balances. This study focuses on the driving mechanisms of NPP changes and proposes a research framework for evaluating the relative impacts of climate change and human activity. Based on the Thornthwaite Memorial and CASA models, this study first determined the relative contributions of climate change and human activity to actual net primary productivity (ANPP) changes in the Hengduan Mountain region, and then analyzed the response of ANPP to major climate factors at the pixel scale. We found that the contribution of human activities (66.11%) to ANPP change was about twice that of climate change (33.89%) in the Hengduan Mountain region. The ANPP in the north and south region was mainly affected by temperature and precipitation respectively, while although implementing ecological restoration projects had been important for improving vegetation conditions across the Hengduan Mountain region, several human activities, such as overgrazing, sloping cropland reclamation, and urban expansion, were the main reasons for ANPP's decrease, especially in dry-hot valley areas. There was a significant gradient difference between in how climate change and human activities influence the ANPP, human activity impacted ANPP more in high relief areas along the horizontal gradient, while climate change impacts on ANPP first decreased then increased with rising elevation along the vertical gradient. This study provides a theoretical basis and methodological reference for quantitatively evaluating ecosystems.
KeywordVegetation dynamics NPP Climate change Human activity Separation Attribution
DOI10.1016/j.ecolind.2019.106013
WOS KeywordNET PRIMARY PRODUCTIVITY ; LAND-COVER CHANGE ; ECOLOGICAL RESTORATION PROJECTS ; DRIVING FORCES ; YANGTZE-RIVER ; ECOSYSTEM ; SENSITIVITY ; IMPACT ; MODEL ; BASIN
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41571098] ; National Natural Science Foundation of China[41530749] ; National Basic Research Program of China (973Program)[2015CB452702] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA19040304] ; Key Programs of the Chinese Academy of Sciences[ZDRW-ZS-2016-6-4-4] ; National Key R&D Program of China[2017YFC1502903] ; National Key R&D Program of China[2018YFC1508805]
Funding OrganizationNational Natural Science Foundation of China ; National Basic Research Program of China (973Program) ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Key Programs of the Chinese Academy of Sciences ; National Key R&D Program of China
WOS Research AreaBiodiversity & Conservation ; Environmental Sciences & Ecology
WOS SubjectBiodiversity Conservation ; Environmental Sciences
WOS IDWOS:000518385800091
PublisherELSEVIER
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/133074
Collection中国科学院地理科学与资源研究所
Corresponding AuthorDai, Erfu
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Lhasa Plateau Ecosyst Res Stn, Beijing 100101, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Yin, Le,Dai, Erfu,Zheng, Du,et al. What drives the vegetation dynamics in the Hengduan Mountain region, southwest China: Climate change or human activity?[J]. ECOLOGICAL INDICATORS,2020,112:12.
APA Yin, Le,Dai, Erfu,Zheng, Du,Wang, Yahui,Ma, Liang,&Tong, Miao.(2020).What drives the vegetation dynamics in the Hengduan Mountain region, southwest China: Climate change or human activity?.ECOLOGICAL INDICATORS,112,12.
MLA Yin, Le,et al."What drives the vegetation dynamics in the Hengduan Mountain region, southwest China: Climate change or human activity?".ECOLOGICAL INDICATORS 112(2020):12.
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