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Ecological stability during the LGM and the mid-Holocene in the Alpine Steppes of Tibet?
Miehe, Georg1; Miehe, Sabine1; Bach, Kerstin1; Kluge, Juergen1; Wesche, Karsten2; Yang Yongping3; Liu Jianquan4
Corresponding AuthorMiehe, G (reprint author), Univ Marburg, Fac Geog, Deutschhausstr 10, D-35032 Marburg, Germany
2011-09-01
Source PublicationQUATERNARY RESEARCH
ISSN0033-5894
Volume76Issue:2Pages:243-252
AbstractArid and Alpine ecosystems are known for extreme environmental changes during the Late Quaternary. We hypothesize that the world's largest Alpine arid ecosystem however, the Alpine Steppes of the Tibetan highlands, remained ecologically stable during the LGM and the mid-Holocene. This hypothesis is tested by distributional range of plant species, plant life forms and rate of endemism. The set of character species has a precipitation gradient between 50 and 350 mm/a, testifying for resilience to precipitation changes. 83% of the species have a wider vertical range than 1000 m used as a proxy for resilience to temperature changes. 30% of the species are endemic with 10 endemic genera, including plate-shaped cushions as a unique plant life form. These findings are in line with palaeo-ecological proxies (delta O-18, pollen) allowing the assumption that Alpine Steppes persisted during the LGM with 3 to 4 K lower summer temperatures.
KeywordSteppe Qinghai-tibet Plateau Grazing Endemics Lgm Mid-holocene Optimum
Subject AreaPhysical Geography ; Geology
DOI10.1016/j.yqres.2011.06.002
Indexed BySCI
Language英语
WOS IDWOS:000294532700008
Citation statistics
Document Type期刊论文
Identifierhttp://ir.kib.ac.cn/handle/151853/5265
Collection资源植物与生物技术所级重点实验室
Affiliation1.Univ Marburg, Fac Geog, D-35032 Marburg, Germany
2.Senckenberg Museum Nat Hist Gorlitz, D-02806 Goerlitz, Germany
3.Chinese Acad Sci, Inst Tibetan Plateau Res Kunming, Kunming Inst Bot, Kunming 650204, Peoples R China
4.Lanzhou Univ, Inst Mol Ecol, MOE Key Lab Arid & Grassland Ecol, Sch Life Sci, Lanzhou 730000, Gansu, Peoples R China
Recommended Citation
GB/T 7714
Miehe, Georg,Miehe, Sabine,Bach, Kerstin,et al. Ecological stability during the LGM and the mid-Holocene in the Alpine Steppes of Tibet?[J]. QUATERNARY RESEARCH,2011,76(2):243-252.
APA Miehe, Georg.,Miehe, Sabine.,Bach, Kerstin.,Kluge, Juergen.,Wesche, Karsten.,...&Liu Jianquan.(2011).Ecological stability during the LGM and the mid-Holocene in the Alpine Steppes of Tibet?.QUATERNARY RESEARCH,76(2),243-252.
MLA Miehe, Georg,et al."Ecological stability during the LGM and the mid-Holocene in the Alpine Steppes of Tibet?".QUATERNARY RESEARCH 76.2(2011):243-252.
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