Extreme hydroclimatic events and response of vegetation in the eastern QTP since 10 ka
文献类型：期刊论文
| 作者 | Ren, Weihe1; Liu, Zijian1; Li, Quan2; Yi, Guitian1; Qin, Feng2 |
| 刊名 | OPEN GEOSCIENCES
 |
| 出版日期 | 2024-11-11 |
| 卷号 | 16期号:1页码:20220717 |
| 关键词 | Holocene Qinghai-Tibet Plateau hydroclimatic vegetation |
| DOI | 10.1515/geo-2022-0717 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Climate variations during the Holocene significantly impacted vegetation dynamics in the eastern Qinghai-Tibet Plateau (QTP). However, vegetation evolution in response to regional climatic trends and events during this interval remains controversial. Here, we present well-dated decadal-resolution loss on ignition (LOI) and grain size records from the Xing Co Lake on the eastern QTP. The records show an overall drying trend since 10 thousand years ago (ka), with multiple extreme precipitation events observed during 10 to 7 ka. An extreme drought event occurred at around 5.5 ka, after which the climate was drier and unstable with several drought events. In comparison with the hydroclimate, insolation, and El Ni & ntilde;o Southern Oscillation records, our data show a close correspondence with the summer insolation differential between 30 degrees N and 30 degrees S and El Ni & ntilde;o events on orbital-millennium timescales. This suggested that the increased rainfall during the early Holocene on the eastern QTP can be attributed to the high insolation differential between 30 degrees N and 30 degrees S and low El Ni & ntilde;o events. Conversely, the drying trend in the late Holocene appears to correlate with a low insolation differential and high El Ni & ntilde;o events. Whenever ice-rafted debris events occurred in the North Atlantic, there was a corresponding occurrence of drying events in the late Holocene in the Zoige Basin. This suggested that teleconnection between the precipitation on the eastern QTP and the North Atlantic climate exists in the Holocene. When compared to independent hydroclimatic and arboreal pollen (AP%) records on the eastern QTP, the evolutionary trends and events of AP% align closely with local hydroclimate changes. This suggested that arboreal coverage could rapidly respond to climate change during the Holocene, but further studies are needed. |
| WOS关键词 | NORTHEASTERN TIBETAN PLATEAU ; ASIAN SUMMER MONSOON ; HOLOCENE PEATLAND DEVELOPMENT ; GRAIN-SIZE ; ZOIGE BASIN ; CLIMATE-CHANGE ; LAKE QINGHAI ; RECORD ; SEDIMENTS ; CHINA |
| WOS研究方向 | Geology |
| WOS记录号 | WOS:001351848900001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/209502]  |
| 专题 | 陆地表层格局与模拟院重点实验室_外文论文 |
| 通讯作者 | Qin, Feng |
| 作者单位 | 1.Hengyang Normal Univ, Coll Geog & Tourism, Hengyang 421002, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resource Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ren, Weihe,Liu, Zijian,Li, Quan,et al. Extreme hydroclimatic events and response of vegetation in the eastern QTP since 10 ka[J]. OPEN GEOSCIENCES,2024,16(1):20220717. |
| APA | Ren, Weihe,Liu, Zijian,Li, Quan,Yi, Guitian,&Qin, Feng.(2024).Extreme hydroclimatic events and response of vegetation in the eastern QTP since 10 ka.OPEN GEOSCIENCES,16(1),20220717. |
| MLA | Ren, Weihe,et al."Extreme hydroclimatic events and response of vegetation in the eastern QTP since 10 ka".OPEN GEOSCIENCES 16.1(2024):20220717. |
入库方式： OAI收割
来源：地理科学与资源研究所
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