气候变化领域集成服务门户(CCPortal): Fine-scale tundra vegetation patterns are strongly related to winter thermal conditions

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DOI	10.1038/s41558-020-00916-4
	Fine-scale tundra vegetation patterns are strongly related to winter thermal conditions
	Niittynen P.; Heikkinen R.K.; Aalto J.; Guisan A.; Kemppinen J.; Luoto M.
发表日期	2020
ISSN	1758-678X
起始页码	1143
结束页码	1148
卷号	10 期号:12
英文摘要	Harsh winters are a characteristic element of Arctic ecosystems, yet the importance of winter conditions for Arctic plant communities is still underrepresented in climate change impact studies. Here, we use fine-scale microclimate data with plot-scale records of vascular plants, lichens and bryophytes from three Arctic areas, and show that topographically heterogeneous tundra holds marked spatial variation, especially in winter temperatures. Winter conditions are the strongest environmental variable related to the fine-scale patterns in tundra vegetation, whereas summer temperatures mainly explain the coarse-scale differences among the Arctic areas. Nonetheless, the three plant groups (and also individual species) show often contrasting and complex responses along the local environmental gradients. Our results highlight the importance of local conditions and heterogeneity for tundra plants, and knowing that the Arctic winters are warming faster than summers, a greater focus should be placed on winter conditions in simulations of climate change impacts in tundra ecosystems. © 2020, The Author(s), under exclusive licence to Springer Nature Limited.
英文关键词	bryophyte; climate change; environmental gradient; lichen; microclimate; seasonality; spatial variation; tundra; vegetation structure; Arctic; bryophytes; Tracheophyta
语种	英语
来源期刊	Nature Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/171631
作者单位	Department of Geosciences and Geography, University of Helsinki, Helsinki, Finland; Finnish Environment Institute, Helsinki, Finland; Finnish Meteorological Institute, Helsinki, Finland; DEE & IDYST, University of Lausanne, Lausanne, Switzerland
推荐引用方式 GB/T 7714	Niittynen P.,Heikkinen R.K.,Aalto J.,et al. Fine-scale tundra vegetation patterns are strongly related to winter thermal conditions[J],2020,10(12).
APA	Niittynen P.,Heikkinen R.K.,Aalto J.,Guisan A.,Kemppinen J.,&Luoto M..(2020).Fine-scale tundra vegetation patterns are strongly related to winter thermal conditions.Nature Climate Change,10(12).
MLA	Niittynen P.,et al."Fine-scale tundra vegetation patterns are strongly related to winter thermal conditions".Nature Climate Change 10.12(2020).