KMS Institute Of Geographic Sciences And Natural Resources Research,CAS
| 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 Publication | ECOLOGICAL INDICATORS
 |
| ISSN | 1470-160X |
| Volume | 112Pages:12 |
| Corresponding Author | Dai, Erfu(daief@igsnrr.ac.cn) |
| Abstract | Quantitatively 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. |
| Keyword | Vegetation dynamics NPP Climate change Human activity Separation Attribution |
| DOI | 10.1016/j.ecolind.2019.106013 |
| WOS Keyword | NET PRIMARY PRODUCTIVITY ; LAND-COVER CHANGE ; ECOLOGICAL RESTORATION PROJECTS ; DRIVING FORCES ; YANGTZE-RIVER ; ECOSYSTEM ; SENSITIVITY ; IMPACT ; MODEL ; BASIN |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National 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 Organization | National 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 Area | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| WOS Subject | Biodiversity Conservation ; Environmental Sciences |
| WOS ID | WOS:000518385800091 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.igsnrr.ac.cn/handle/311030/133074 |
| Collection | 中国科学院地理科学与资源研究所 |
| Corresponding Author | Dai, Erfu |
| Affiliation | 1.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. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment