Increasing Impact of Precipitation on Alpine-Grassland Productivity over Last Two Decades on the Tibetan Plateau
文献类型：期刊论文
| 作者 | Zha, Xinjie1,2; Niu, Ben3; Li, Meng4; Duan, Cheng3 |
| 刊名 | REMOTE SENSING
 |
| 出版日期 | 2022-07-01 |
| 卷号 | 14期号:14页码:14 |
| 关键词 | alpine grassland productivity climate warming precipitation sensitivity |
| DOI | 10.3390/rs14143430 |
| 通讯作者 | Duan, Cheng(duanc.16b@igsnrr.ac.cn) |
| 英文摘要 | Understanding the importance of temperature and precipitation on plant productivity is beneficial, to reveal the potential impact of climate change on vegetation growth. Although some studies have quantified the response of vegetation productivity to climate change at local, regional, and global scales, changes in climatic constraints on vegetation productivity over time are not well understood. This study combines the normalized difference vegetation index (NDVI) and the net primary production (NPP) modeled by CASA during the plant-growing season, to quantify the interplay of climatic (growing-season temperature and precipitation, GST and GSP) constraints on alpine-grassland productivity on the Tibetan Plateau, as well as the temporal dynamics of these constraints. The results showed that (1) 42.2% and 36.3% of grassland NDVI and NPP on the Tibetan Plateau increased significantly from 2000 to 2019. GSP controlled grassland growth in dryland regions, while humid grasslands were controlled by the GST. (2) The response strength of the NDVI and NPP to precipitation (partial correlation coefficient RNDVI-GSP and RNPP-GSP) increased substantially between 2000 and 2019. Especially, the RNDVI-GSP and RNPP-GSP increased from 0.14 and 0.01 in the first 10year period (2000-2009) to 0.83 and 0.78 in the second 10-year period (2010-2019), respectively. As a result, the controlling factor for alpine-grassland productivity variations shifted from temperature during 2000-2009 to precipitation during 2010-2019. (3) The increase in precipitation constraints was mainly distributed in dryland regions of the plateau. This study highlights that the climatic constraints on alpine-grassland productivity might change under ongoing climate change, which helps the understanding of the ecological responses and helps predict how vegetation productivity changes in the future. |
| WOS关键词 | ECOSYSTEM PRODUCTION ; ABOVEGROUND BIOMASS ; CLIMATE-CHANGE ; CARBON UPTAKE ; VARIABILITY ; VEGETATION ; SATELLITE ; TRENDS ; TEMPERATURE ; DIVERSITY |
| 资助项目 | Central Government Guides Local Science and Technology Development Program[XZ202201YD0014C] ; Key R&D Program of Tibet[XZ202001ZY0050G] |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology |
| 语种 | 英语 |
| WOS记录号 | WOS:000833151600001 |
| 出版者 | MDPI |
| 资助机构 | Central Government Guides Local Science and Technology Development Program ; Key R&D Program of Tibet |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/181413]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Duan, Cheng |
| 作者单位 | 1.Xian Univ Finance & Econ, China Xian Inst Silk Rd Res, Xian 710100, Peoples R China 2.Xian Univ Finance & Econ, Res Ctr Populat Resource & Environm Stat, Xian 710100, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modelling, Lhasa Natl Ecol Res Stn, Beijing 100101, Peoples R China 4.Nantong Univ, Sch Geog Sci, Nantong 226007, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zha, Xinjie,Niu, Ben,Li, Meng,et al. Increasing Impact of Precipitation on Alpine-Grassland Productivity over Last Two Decades on the Tibetan Plateau[J]. REMOTE SENSING,2022,14(14):14. |
| APA | Zha, Xinjie,Niu, Ben,Li, Meng,&Duan, Cheng.(2022).Increasing Impact of Precipitation on Alpine-Grassland Productivity over Last Two Decades on the Tibetan Plateau.REMOTE SENSING,14(14),14. |
| MLA | Zha, Xinjie,et al."Increasing Impact of Precipitation on Alpine-Grassland Productivity over Last Two Decades on the Tibetan Plateau".REMOTE SENSING 14.14(2022):14. |
入库方式： OAI收割
来源：地理科学与资源研究所
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