气候变化领域集成服务门户(CCPortal): A Middle Eocene lowland humid subtropical “Shangri-La” ecosystem in central Tibet

CCPortal

DOI	10.1073/PNAS.2012647117
	A Middle Eocene lowland humid subtropical “Shangri-La” ecosystem in central Tibet
	Su T.; Spicer R.A.; Wu F.-X.; Farnsworth A.; Huang J.; Del Rio C.; Deng T.; Ding L.; Deng W.-Y.-D.; Huang Y.-J.; Hughes A.; Jia L.-B.; Jin J.-H.; Li S.-F.; Liang S.-Q.; Liu J.; Liu X.-Y.; Sherlock S.; Spicer T.; Srivastava G.; Tang H.; Valdes P.; Wang T.-X.; Widdowson M.; Wu M.-X.; Xing Y.-W.; Xu C.-L.; Yang J.; Zhang C.; Zhang S.-T.; Zhang X.-W.; Zhao F.; Zhou Z.-K.
发表日期	2021
ISSN	00278424
起始页码	32989
结束页码	32995
卷号	117 期号:52
英文摘要	Tibet’s ancient topography and its role in climatic and biotic evolution remain speculative due to a paucity of quantitative surface-height measurements through time and space, and sparse fossil records. However, newly discovered fossils from a present elevation of ∼4,850 m in central Tibet improve substantially our knowledge of the ancient Tibetan environment. The 70 plant fossil taxa so far recovered include the first occurrences of several modern Asian lineages and represent a Middle Eocene (∼47 Mya) humid subtropical ecosystem. The fossils not only record the diverse composition of the ancient Tibetan biota, but also allow us to constrain the Middle Eocene land surface height in central Tibet to ∼1,500 ± 900 m, and quantify the prevailing thermal and hydrological regime. This “Shangri-La”–like ecosystem experienced monsoon seasonality with a mean annual temperature of ∼19 °C, and frosts were rare. It contained few Gondwanan taxa, yet was compositionally similar to contemporaneous floras in both North America and Europe. Our discovery quantifies a key part of Tibetan Paleogene topography and climate, and highlights the importance of Tibet in regard to the origin of modern Asian plant species and the evolution of global biodiversity. © 2020 National Academy of Sciences. All rights reserved.
英文关键词	Biodiversity; Fossil; Monsoon; Tibetan Plateau; Topography
语种	英语
scopus关键词	article; biodiversity; climate; Europe; flora; fossil; Lutetian; nonhuman; North America; quantitative analysis; seasonal variation; Tibet; topography
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/179626
作者单位	CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, 666303, China; Center of Plant Ecology, Core Botanical Gardens, Chinese Academy of Sciences, Mengla, 666303, China; University of Chinese Academy of Sciences, Beijing, 100049, China; School of Environment, Earth and Ecosystem Sciences, Open University, Milton Keynes, MK7 6AA, United Kingdom; Key Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, 100044, China; Center for Excellence in Life and Paleoenvironment, Chinese Academy of Sciences, Beijing, 100101, China; School of Geographical Sciences, Cabot Institute, University of Bristol, Bristol, BS8 1TH, United Kingdom; CAS Center for Excellence in Tibetan Plateau Earth Sciences, Chinese Academy of Sciences, Beijing, 100101, China; Key Laboratory of Continental Collision and Plateau Uplift, Institute of Tibetan Plateau Research, Chines...
推荐引用方式 GB/T 7714	Su T.,Spicer R.A.,Wu F.-X.,等. A Middle Eocene lowland humid subtropical “Shangri-La” ecosystem in central Tibet[J],2021,117(52).
APA	Su T..,Spicer R.A..,Wu F.-X..,Farnsworth A..,Huang J..,...&Zhou Z.-K..(2021).A Middle Eocene lowland humid subtropical “Shangri-La” ecosystem in central Tibet.Proceedings of the National Academy of Sciences of the United States of America,117(52).
MLA	Su T.,et al."A Middle Eocene lowland humid subtropical “Shangri-La” ecosystem in central Tibet".Proceedings of the National Academy of Sciences of the United States of America 117.52(2021).