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Warming and increasing precipitation induced greening on the northern Qinghai-Tibet Plateau

文献类型：期刊论文

作者Shi, Shangyu4,5; Wang, Ping2,3; Zhan, Xiaoyun4,5; Han, Jianqiao4,5; Guo, Minghang1,4,5; Wang, Fei1,2,4,5
刊名CATENA
出版日期2023-12-01
卷号233页码:13
ISSN号0341-8162
关键词Qinghai-Tibet Plateau Vegetation greening Climate change Multiple time scales
DOI10.1016/j.catena.2023.107483
通讯作者Guo, Minghang(wafe@ms.iswc.ac.cn) ; Wang, Fei(mhguo@ms.iswc.ac.cn)
英文摘要The Qinghai-Tibet Plateau (QTP) has a fragile ecosystem that is sensitive to climate change. Due to the amplifying effect of climate change, the QTP has experienced rapid warming and shifting precipitation in recent decades, profoundly impacting the local ecosystem. However, the specific details of how vegetation responds to these changes were unclear, and the corresponding contributions were poorly quantified. Here, we employed an elastic net regression model to investigate the sensitivity of vegetation to climate factors across multiple time scales and various seasons. The vegetation activity was represented by the enhanced vegetation index (EVI), while climate change was represented by temperature, precipitation, photosynthetically active radiation (PAR), and soil moisture fraction (SMF). During 2000-2020, approximately 50 % of the QTP area showed greening, mainly concentrated in the northern region. Climate change explained approximately 70 % of the variation in vegetation during the growing season, 39 % in spring and 66 % in autumn. Grasslands exhibited the highest sensitive to climate change, with a relative contribution of 83 %, followed by mixed forests (70 %), forests (53 %) and deserts (52 %). Both temperature and precipitation significantly affected vegetation, with relative contributions of 29 % and 22 %, respectively, during the growing season. PAR and SMF had less impact on vegetation, with relative contributions of 8 % and 12 %, respectively. In the greening region, precipitation (26 %) was more important for vegetation growth compared to temperature (25 %). These findings emphasize the importance of precipitation on vegetation on the QTP, providing valuable insights for improving regional ecosystem assessment model and promoting the restoration of fragile ecosystems.
WOS关键词CLIMATE-CHANGE ; TERRESTRIAL ECOSYSTEMS ; SOIL-MOISTURE ; ALPINE ECOSYSTEMS ; PERMAFROST DEGRADATION ; VEGETATION GROWTH ; SEMIARID REGION ; LAND-SURFACE ; TEMPERATURE ; MODIS
资助项目National Key Ramp;D Program of China[2022YFF1300104] ; Innovation Capability Support Program of Shaanxi[2022PT-23]
WOS研究方向Geology ; Agriculture ; Water Resources
语种英语
出版者ELSEVIER
WOS记录号WOS:001074366400001
资助机构National Key Ramp;D Program of China ; Innovation Capability Support Program of Shaanxi
源URL[http://ir.igsnrr.ac.cn/handle/311030/198060]  
专题中国科学院地理科学与资源研究所
通讯作者Guo, Minghang; Wang, Fei
作者单位1.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Key Lab Water Cycle & Related Land Surface Proc, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
4.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Peoples R China
5.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess Pl, Yangling 712100, Peoples R China
推荐引用方式
GB/T 7714		 Shi, Shangyu,Wang, Ping,Zhan, Xiaoyun,et al. Warming and increasing precipitation induced greening on the northern Qinghai-Tibet Plateau[J]. CATENA,2023,233:13.
APA Shi, Shangyu,Wang, Ping,Zhan, Xiaoyun,Han, Jianqiao,Guo, Minghang,&Wang, Fei.(2023).Warming and increasing precipitation induced greening on the northern Qinghai-Tibet Plateau.CATENA,233,13.
MLA Shi, Shangyu,et al."Warming and increasing precipitation induced greening on the northern Qinghai-Tibet Plateau".CATENA 233(2023):13.

入库方式： OAI收割

来源：地理科学与资源研究所

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