Late deglacial and Holocene vegetation and climate change at Lake Mapam Yumco, southwestern Tibetan Plateau
文献类型：期刊论文
| 作者 | Humagain, Sima3,4; Lu, Xinmiao4; Zhu, Liping3,4; Ma, Qingfeng4; Wang, Junbo4; Ju, Jianting4; Zhu, Shaohang2; Cheng, Jiuju1,3; Kaphle, Binija3,4; Paudayal, Khum Narayan5 |
| 刊名 | CATENA
 |
| 出版日期 | 2025-12-01 |
| 卷号 | 260页码:109484 |
| 关键词 | Pollen Precipitation reconstruction Indian summer monsoon Southwestern Tibetan Plateau Holocene Westerly |
| ISSN号 | 0341-8162 |
| DOI | 10.1016/j.catena.2025.109484 |
| 产权排序 | 4 |
| 文献子类 | Article |
| 英文摘要 | Environmental changes on the Tibetan Plateau (TP) and their responses to the Indian summer monsoon (ISM) and the westerlies have attracted significant attention. However, our understanding of regional vegetation and climate changes influenced by the ISM from the Arabian Sea and the westerlies in the southwestern TP remains limited. Here, we present a pollen record from Lake Mapam Yumco covering the late deglacial to the Holocene. Results show that alpine meadow was sparsely distributed around the lake, with relatively high moisture from 13.5 to 11.7 cal ka BP. The early Holocene (11.7-8.3 cal ka BP) was the most humid period, marked by persistent alpine meadow and expanding steppe. During 8.3-4.2 cal ka BP, the climate became drier, with alpine meadow steppe dominating. After 4.2 cal ka BP, vegetation shifted to sparse dry steppe. Moisture conditions at Lake Mapam Yumco were humid in the late deglacial and early Holocene but drier in the late Holocene compared to the eastern TP, due to the ISM from different pathways and the influence of the southern branch of the westerlies. The stepwise drying trend in the Holocene reflects that the regional climate was mainly controlled by the ISM, which was driven by the summer insolation at 30 degrees N and the position of the Intertropical Convergence Zone. Exotic pollen studies underscore the crucial role of the westerlies and El Nino-Southern Oscillations in atmospheric circulation. Dry events in the Holocene highlight that the North Atlantic region also impacts the climate in the southwestern TP. |
| URL标识 | 查看原文 |
| WOS关键词 | BASIN WESTERN TIBET ; LATE PLEISTOCENE ; HIGH-RESOLUTION ; MONSOON RECORD ; PALYNOLOGICAL EVIDENCE ; LATE QUATERNARY ; SUMMER MONSOON ; POLLEN RECORD ; SEDIMENTS ; CO |
| WOS研究方向 | Geology ; Agriculture ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:001587637500001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/217445]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Lu, Xinmiao; Zhu, Liping |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China; 2.Huaibei Normal Univ, Huaibei 235099, Peoples R China; 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 4.Chinese Acad Sci, Inst Tibetan Plateau Res, State Key Lab Tibetan Plateau Earth Syst Environm, Beijing 100101, Peoples R China; 5.Tribhuvan Univ, Cent Dept Geol, Kathmandu, Nepal |
| 推荐引用方式 GB/T 7714 | Humagain, Sima,Lu, Xinmiao,Zhu, Liping,et al. Late deglacial and Holocene vegetation and climate change at Lake Mapam Yumco, southwestern Tibetan Plateau[J]. CATENA,2025,260:109484. |
| APA | Humagain, Sima.,Lu, Xinmiao.,Zhu, Liping.,Ma, Qingfeng.,Wang, Junbo.,...&Paudayal, Khum Narayan.(2025).Late deglacial and Holocene vegetation and climate change at Lake Mapam Yumco, southwestern Tibetan Plateau.CATENA,260,109484. |
| MLA | Humagain, Sima,et al."Late deglacial and Holocene vegetation and climate change at Lake Mapam Yumco, southwestern Tibetan Plateau".CATENA 260(2025):109484. |
入库方式： OAI收割
来源：地理科学与资源研究所
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