globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.13710
论文题名:
Open tundra persist, but arctic features decline—Vegetation changes in the warming Fennoscandian tundra
作者: Vuorinen K.E.M.; Oksanen L.; Oksanen T.; Pyykönen A.; Olofsson J.; Virtanen R.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2017
卷: 23, 期:9
起始页码: 3794
结束页码: 3807
语种: 英语
英文关键词: alpine ; arctic ; climate change ; disturbance ; Empetrum nigrum ; lichens ; mosses ; reindeer ; tree line ; tundra ; vegetation
Scopus关键词: Betula pubescens subsp. tortuosa ; Bryophyta ; Empetrum nigrum ; Rangifer tarandus ; Salix ; Tracheophyta
英文摘要: In the forest-tundra ecotone of the North Fennoscandian inland, summer and winter temperatures have increased by two to three centigrades since 1965, which is expected to result in major vegetation changes. To document the expected expansion of woodlands and scrublands and its impact on the arctic vegetation, we repeated a vegetation transect study conducted in 1976 in the Darju, spanning from woodland to a summit, 200 m above the tree line. Contrary to our expectations, tree line movement was not detected, and there was no increase in willows or shrubby mountain birches, either. Nevertheless, the stability of tundra was apparent. Small-sized, poorly competing arctic species had declined, lichen cover had decreased, and vascular plants, especially evergreen ericoid dwarf shrubs, had gained ground. The novel climate seems to favour competitive clonal species and species thriving in closed vegetation, creating a community hostile for seedling establishment, but equally hostile for many arctic species, too. Preventing trees and shrubs from invading the tundra is thus not sufficient for conserving arctic biota in the changing climate. The only dependable cure is to stop the global warming. © 2017 John Wiley & Sons Ltd
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被引频次[WOS]:51   [查看WOS记录]     [查看WOS中相关记录]
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60850
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作者单位: Section of Ecology, Department of Biology, University of Turku, Turku, Finland; Department of Arctic and Marine Biology, University of Tromsø – The Arctic University of Norway, Alta, Norway; Department of Botany and Zoology, Masaryk University, Brno, Czech Republic; Department of Ecology and Environmental Science, Umeå University, Umeå, Sweden; Department of Physiological Diversity, Helmholtz Center for Environmental Research – UFZ, Leipzig, Germany; German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany; Department of Ecology & Genetics, University of Oulu, Oulu, Finland

Recommended Citation:
Vuorinen K.E.M.,Oksanen L.,Oksanen T.,et al. Open tundra persist, but arctic features decline—Vegetation changes in the warming Fennoscandian tundra[J]. Global Change Biology,2017-01-01,23(9)
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