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Evidence for climate instability during the Younger Dryas interval in the Hengduan Mountains, Yunnan, southwestern China
Yao, Yi-Feng; Wang, Xia1; Qin, Feng2; Wortley, Alexandra H.; Li, Su-Ping; Blackmore, Stephen3; Li, Cheng-Sen; Wang, Yu-Fei
2020
发表期刊PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN0031-0182
卷号554
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.
关键词Biodiversity Global warming Holocene Palaeoclimatology Vegetation
学科领域Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
DOI10.1016/j.palaeo.2020.109798
收录类别SCI
语种英语
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
WOS记录号WOS:000552137300010
出版者ELSEVIER
文献子类Article
出版地AMSTERDAM
EISSN1872-616X
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
作者邮箱yaoyf@ibcas.ac.cn ; wangyf@ibcas.ac.cn
引用统计
被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ibcas.ac.cn/handle/2S10CLM1/21662
专题系统与进化植物学国家重点实验室
作者单位1.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China
2.Henan Acad Sci, Inst Geog Sci, Zhengzhou 450052, Peoples R China
3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China
4.Royal Bot Garden Edinburgh, 20a Inverleith Row, Edinburgh EH3 5LR, Midlothian, Scotland
5.Chinese Acad Geol Sci, Inst Geol, Beijing 100037, Peoples R China
6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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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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