What drives the vegetation dynamics in the Hengduan Mountain region, southwest China: Climate change or human activity?
文献类型：期刊论文
| 作者 | Yin, Le1,2; Dai, Erfu2,3 ; Zheng, Du1,2; Wang, Yahui2,3; Ma, Liang2,3; Tong, Miao2,3
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| 刊名 | ECOLOGICAL INDICATORS
 |
| 出版日期 | 2020-05-01 |
| 卷号 | 112页码:12 |
| 关键词 | Vegetation dynamics NPP Climate change Human activity Separation Attribution |
| ISSN号 | 1470-160X |
| DOI | 10.1016/j.ecolind.2019.106013 |
| 通讯作者 | Dai, Erfu(daief@igsnrr.ac.cn) |
| 英文摘要 | 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. |
| WOS关键词 | NET PRIMARY PRODUCTIVITY ; LAND-COVER CHANGE ; ECOLOGICAL RESTORATION PROJECTS ; DRIVING FORCES ; YANGTZE-RIVER ; ECOSYSTEM ; SENSITIVITY ; IMPACT ; MODEL ; BASIN |
| 资助项目 | 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] |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000518385800091 |
| 出版者 | ELSEVIER |
| 资助机构 | 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 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/133073]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Dai, Erfu |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.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 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：地理科学与资源研究所
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