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
通讯作者Miehe, G (reprint author), Univ Marburg, Fac Geog, Deutschhausstr 10, D-35032 Marburg, Germany
2011-09-01
发表期刊QUATERNARY RESEARCH
ISSN0033-5894
卷号76期号:2页码:243-252
摘要Arid 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.
关键词Steppe Qinghai-tibet Plateau Grazing Endemics Lgm Mid-holocene Optimum
学科领域Physical Geography ; Geology
DOI10.1016/j.yqres.2011.06.002
收录类别SCI
语种英语
WOS记录号WOS:000294532700008
引用统计
文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/5265
专题资源植物与生物技术所级重点实验室
作者单位1.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
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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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