Weakening summer westerly circulation actuates greening of the Tibetan Plateau
文献类型：期刊论文
| 作者 | Wang, Zhipeng1; Niu, Ben; He, Yongtao2; Zhang, Jing3; Wu, Jianshuang4; Wang, Xiangtao5; Zhang, Yangjian2; Zhang, Xianzhou2 |
| 刊名 | GLOBAL AND PLANETARY CHANGE
 |
| 出版日期 | 2023-02-01 |
| 卷号 | 221页码:104027 |
| ISSN号 | 0921-8181 |
| 关键词 | Greening Climate change Westerly wind South Asia monsoon Teleconnection Tibetan Plateau |
| DOI | 10.1016/j.gloplacha.2022.104027 |
| 文献子类 | Article |
| 英文摘要 | Greening of the Earth is among the world's most important ecological changes in recent decades, but its effects and triggers are multifaceted and varied across the globe. Climate change is the primary driver for greening of the Tibetan Plateau (TP), where vegetation is of great significance for resident survival, carbon sequestration and climate feedbacks. However, the spatial variability of greening and its drivers are not well-understood on the TP. Here, we compiled multi-source vegetation indices, climate and atmospheric data to investigate the greenness spatiotemporal variability and its linkage with large-scale climate oscillations. We found that greening domi-nated the TP during 1980s-2010s and positive trends in satellite-based vegetation indices account for >70% of the TP. Specifically, the arid and semi-arid TP experienced a significant and higher greening rate due to the remarkable increase in precipitation. We further clarified the domains of the South Asian monsoon (SAMI1 and SAMI2), the westerly wind (WI) and the plateau monsoon (TPMI) on the TP, and realized that the wetness in-crease in the arid and semi-arid was correlated with a weakening WI. Detecting the linkage between WI with large-scale climate oscillations, we suggested that the decadal weakening WI was induced by a warmer North Atlantic SST (positive AMO phase), which triggered wave train anomalies and regulated zonal and meridional vapor transport across Eurasia. Generally, during the weak/negative WI phase, anticyclone anomalies centered over Mongolia may strongly reduce vapor output across the east boundaries, while cyclone anomalies centered over the northwest outside the TP likely enhance meridional vapor transport into the western TP from the south ocean. Eventually, precipitation over the arid and semi-arid TP increased significantly in the past four decades, that stimulated plant growth and greening pattern on the TP. Our results established the linkage among climate oscillations, regional climate alteration and vegetation greening, providing a more thorough understanding in terrestrial greening. |
| 学科主题 | Physical Geography ; Geology |
| WOS关键词 | SILK ROAD ; TELECONNECTION PATTERN ; MOISTURE SOURCE ; CLIMATE-CHANGE ; PRECIPITATION ; TEMPERATURE ; IMPACTS ; MONSOON ; JET ; VARIABILITY |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/193528]  |
| 专题 | 拉萨站高原生态系统研究中心_外文论文 |
| 作者单位 | 1.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 2.Hebei Univ Engn, Sch Water Conservancy & Hydropower, Handan 056038, Peoples R China 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China 4.Beijing Normal Univ, Coll Global Change & Earth Syst Sci, Beijing 100875, Peoples R China 5.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Beijing 100081, Peoples R China 6.Tibet Agr & Anim Husb Univ, Linzhi 860000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Zhipeng,Niu, Ben,He, Yongtao,et al. Weakening summer westerly circulation actuates greening of the Tibetan Plateau[J]. GLOBAL AND PLANETARY CHANGE,2023,221:104027. |
| APA | Wang, Zhipeng.,Niu, Ben.,He, Yongtao.,Zhang, Jing.,Wu, Jianshuang.,...&Zhang, Xianzhou.(2023).Weakening summer westerly circulation actuates greening of the Tibetan Plateau.GLOBAL AND PLANETARY CHANGE,221,104027. |
| MLA | Wang, Zhipeng,et al."Weakening summer westerly circulation actuates greening of the Tibetan Plateau".GLOBAL AND PLANETARY CHANGE 221(2023):104027. |
入库方式： OAI收割
来源：地理科学与资源研究所
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