Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1029/2020PA004126 |
Vegetation History and Precipitation Changes in the NE Qinghai-Tibet Plateau: A 7,900-years Pollen Record From Caodalian Lake | |
Lv, Feiya; Chen, Jianhui; Zhou, Aifeng; Cao, Xianyong; Zhang, Xu; Wang, Zhenqian; Wu, Duo; Chen, Xuemei; Yan, Jingjing; Wang, Haipeng; Dong, Guanghui; Xu, Qinghai; Huang, Xiaozhong; Chen, Fahu | |
通讯作者 | Chen, JH (corresponding author), Lanzhou Univ, Coll Earth & Environm Sci, Key Lab Western Chinas Environm Syst, Minist Educ, Lanzhou, Peoples R China. |
来源期刊 | PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY |
ISSN | 2572-4517 |
EISSN | 2572-4525 |
出版年 | 2021 |
卷号 | 36期号:4 |
英文摘要 | The northeastern Qinghai-Tibet Plateau is strongly influenced by the East Asian summer monsoon (EASM), the Indian summer monsoon (ISM) and the westerlies. However, how these various circulation systems interacted in the region during the Holocene, and the nature of the associated environmental impacts, are unclear and even controversial. Here we present a high-resolution pollen record from Caodalian Lake since 7.9 ka (1 ka = 1,000 cal yr BP), which is used to reconstruct the regional vegetation history and climatic changes. In addition, we use a novel procedure for pollen-based quantitative paleoclimatic reconstruction to characterize the evolution of precipitation at Caodalian Lake and nearby Qinghai Lake. The results suggest that mean annual precipitation (P-ann) is the most significant factor controlling the fossil pollen record at both sites, and the P-ann reconstructions are well correlated with each other (r = 0.72, p < 0.001). A synthesis of the P-ann records from the two sites indicates that the precipitation in the region began to increase before 10 ka, reached a maximum during 10-5 ka, and gradually decreased thereafter. We propose that the pattern of precipitation evolution in the Qinghai Lake basin resulted from the combined effects of the ISM and EASM, with a precipitation maximum of 10-7 ka for the ISM and 7-5 ka for the EASM; both systems contributed to the regional precipitation maximum during 10-5 ka. Our well-dated and unambiguous P-ann record also provides the opportunity to reconcile paleoenvironmental reconstructions derived from different paleoenvironmental proxies from the Qinghai Lake basin. |
英文关键词 | Holocene pollen Qinghai Lake Quantitative precipitation reconstruction vegetation |
类型 | Article |
语种 | 英语 |
收录类别 | SCI-E |
WOS记录号 | WOS:000644566400025 |
WOS关键词 | ASIAN SUMMER MONSOON ; OXYGEN-ISOTOPE RECORD ; CLIMATE CALIBRATION-SET ; ARID CENTRAL-ASIA ; HOLOCENE VEGETATION ; GENGGAHAI LAKE ; QUANTITATIVE RECONSTRUCTIONS ; AEOLIAN DEPOSITS ; CARBON ISOTOPES ; INNER-MONGOLIA |
WOS类目 | Geosciences, Multidisciplinary ; Oceanography ; Paleontology |
WOS研究方向 | Geology ; Oceanography ; Paleontology |
来源机构 | 兰州大学 ; 中国科学院青藏高原研究所 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/368880 |
作者单位 | [Lv, Feiya; Chen, Jianhui; Zhou, Aifeng; Zhang, Xu; Wang, Zhenqian; Wu, Duo; Yan, Jingjing; Dong, Guanghui; Huang, Xiaozhong; Chen, Fahu] Lanzhou Univ, Coll Earth & Environm Sci, Key Lab Western Chinas Environm Syst, Minist Educ, Lanzhou, Peoples R China; [Cao, Xianyong; Chen, Fahu] Chinese Acad Sci, Inst Tibetan Plateau Res, State Key Lab Tibetan Plateau Earth Syst Sci, Alpine Paleoecol & Human Adaptat Grp ALPHA, Beijing, Peoples R China; [Xu, Qinghai] Hebei Normal Univ, Coll Resources & Environm Sci, Hebei Key Lab Environm Change & Ecol Construct, Shijiazhuang, Hebei, Peoples R China; [Chen, Xuemei] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soils Engn, Lanzhou, Peoples R China; [Wang, Haipeng] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou, Peoples R China |
推荐引用方式 GB/T 7714 | Lv, Feiya,Chen, Jianhui,Zhou, Aifeng,et al. Vegetation History and Precipitation Changes in the NE Qinghai-Tibet Plateau: A 7,900-years Pollen Record From Caodalian Lake[J]. 兰州大学, 中国科学院青藏高原研究所,2021,36(4). |
APA | Lv, Feiya.,Chen, Jianhui.,Zhou, Aifeng.,Cao, Xianyong.,Zhang, Xu.,...&Chen, Fahu.(2021).Vegetation History and Precipitation Changes in the NE Qinghai-Tibet Plateau: A 7,900-years Pollen Record From Caodalian Lake.PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY,36(4). |
MLA | Lv, Feiya,et al."Vegetation History and Precipitation Changes in the NE Qinghai-Tibet Plateau: A 7,900-years Pollen Record From Caodalian Lake".PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY 36.4(2021). |
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