Evidence for climate instability during the Younger Dryas interval in the Hengduan Mountains, Yunnan, southwestern China
文献类型：期刊论文
| 作者 | Yao, Yi-Feng; Wang, Xia4; Qin, Feng5; Wortley, Alexandra H.; Li, Su-Ping; Blackmore, Stephen6; Li, Cheng-Sen; Wang, Yu-Fei
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| 刊名 | PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
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| 出版日期 | 2020 |
| 卷号 | 554 |
| 关键词 | Biodiversity Global warming Holocene Palaeoclimatology Vegetation |
| ISSN号 | 0031-0182 |
| DOI | 10.1016/j.palaeo.2020.109798 |
| 文献子类 | Article |
| 英文摘要 | The Younger Dryas (YD) is the most recent abrupt climatic event recognized during the transition from the last glaciation to the Holocene. Growing evidence from the middle and high latitudes of Europe and North America shows that the climate within the YD event was highly unstable. Until recently, however, climate instability during this event has received little attention elsewhere in the world. Here we present evidence of a climatically unstable YD based on pollen-climate transfer function and REDFIT spectral analysis of pollen data from Haligu in the Hengduan Mountains of southwestern China, a low latitude temperate biodiversity hotspot. Our data show that the climate fluctuated significantly during the YD, with three warm peaks recognized at 11.5, 11.7 and 12.3 cal kyr BP. In particular, we estimate a gradual rise in mean annual temperature by 3.7 degrees C between the end of the YD and the early Holocene (11.2-10.9 cal kyr BP). In response to this, the subalpine conifer forest dominated by Picea and Abies may have migrated about 610 m upwards. We also detected that the climate fluctuations during the YD-Holocene transition show significant centennial periodicities of 76 yr, 84 yr, 91 yr, 95 yr, and 638 yr. The former four cycles are possibly related to the Gleissberg (around 80 yr) solar cycle, which was also detected in the Hongyuan peat, the PC-6 core of the East China Sea and the GISP2 ice core. These new findings enhance our understanding of millennial-scale abrupt climate events which may be of great significance in predicting the impact of future climate change on mountainous ecosystems in southwestern China. The warming at the end of the YD may provide a potential analog for global warming in the near future, during which the upward migration of vegetation zones will likely lead to the loss of habitat for threatened species. We therefore should take action to restore habitats and provide protected areas for species at risk. |
| 学科主题 | Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology |
| 出版地 | AMSTERDAM |
| 电子版国际标准刊号 | 1872-616X |
| WOS关键词 | HIGH-RESOLUTION ; LAST DEGLACIATION ; VEGETATION RESPONSES ; MONSOON RECORD ; HOLOCENE ; REGION ; SEASONALITY ; DELTA-O-18 ; SEDIMENTS ; TROPICS |
| WOS研究方向 | Physical Geography ; Geology ; Paleontology |
| 语种 | 英语 |
| WOS记录号 | WOS:000552137300010 |
| 出版者 | ELSEVIER |
| 资助机构 | Strategic Priority Research Program of Chinese Academy of SciencesChinese Academy of Sciences [XDB26000000] ; National Key R & D Program of China [2017YFC0803803] ; Open Research Foundation of State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences [LSEB2020-1, 2020-4] ; Digital Environment Archaeology Specially-Appointed Researcher of Henan [200501002] ; Basic Scientific Research of the Digital Environment Archaeology [200601016] ; China Scholarship CouncilChina Scholarship Council [201204910043] ; Scottish Government Rural and Environmental Science ; Scottish Government Analytical Services Division |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/21662]  |
| 专题 | 植物研究所_系统与进化植物学研究中心_系统与进化植物学研究中心_学位论文 |
| 作者单位 | 1.Royal Bot Garden Edinburgh, 20a Inverleith Row, Edinburgh EH3 5LR, Midlothian, Scotland 2.Chinese Acad Geol Sci, Inst Geol, Beijing 100037, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China 5.Henan Acad Sci, Inst Geog Sci, Zhengzhou 450052, Peoples R China 6.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yao, Yi-Feng,Wang, Xia,Qin, Feng,et al. Evidence for climate instability during the Younger Dryas interval in the Hengduan Mountains, Yunnan, southwestern China[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2020,554. |
| APA | Yao, Yi-Feng.,Wang, Xia.,Qin, Feng.,Wortley, Alexandra H..,Li, Su-Ping.,...&Wang, Yu-Fei.(2020).Evidence for climate instability during the Younger Dryas interval in the Hengduan Mountains, Yunnan, southwestern China.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,554. |
| MLA | Yao, Yi-Feng,et al."Evidence for climate instability during the Younger Dryas interval in the Hengduan Mountains, Yunnan, southwestern China".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 554(2020). |
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来源：植物研究所
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