气候变化领域集成服务门户(CCPortal): Tundra vegetation change and impacts on permafrost

CCPortal

DOI	10.1038/s43017-021-00233-0
	Tundra vegetation change and impacts on permafrost
	Heijmans, Monique M. P. D.; Magnusson, Runa, I; Lara, Mark J.; Frost, Gerald, V; Myers-Smith, Isla H.; van Huissteden, Jacobus; Jorgenson, M. Torre; Fedorov, Alexander N.; Epstein, Howard E.; Lawrence, David M.; Limpens, Juul
发表日期	2022
EISSN	2662-138X
起始页码	68
结束页码	84
卷号	3 期号:1
英文摘要	Tundra vegetation productivity and composition are responding rapidly to climatic changes in the Arctic. These changes can, in turn, mitigate or amplify permafrost thaw. In this Review, we synthesize remotely sensed and field-observed vegetation change across the tundra biome, and outline how these shifts could influence permafrost thaw. Permafrost ice content appears to be an important control on local vegetation changes; woody vegetation generally increases in ice-poor uplands, whereas replacement of woody vegetation by (aquatic) graminoids following abrupt permafrost thaw is more frequent in ice-rich Arctic lowlands. These locally observed vegetation changes contribute to regional satellite-observed greening trends, although the interpretation of greening and browning is complicated. Increases in vegetation cover and height generally mitigate permafrost thaw in summer, yet, increase annual soil temperatures through snow-related winter soil warming effects. Strong vegetation-soil feedbacks currently alleviate the consequences of thaw-related disturbances. However, if the increasing scale and frequency of disturbances in a warming Arctic exceeds the capacity for vegetation and permafrost recovery, changes to Arctic ecosystems could be irreversible. To better disentangle vegetation-soil-permafrost interactions, ecological field studies remain crucial, but require better integration with geophysical assessments. Greening and vegetation community shifts have been observed across Arctic environments. This Review examines these changes and their impact on underlying permafrost.
语种	英语
WOS研究方向	Environmental Sciences ; Geosciences, Multidisciplinary
WOS类目	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000742668100013
来源期刊	NATURE REVIEWS EARTH & ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/280615
作者单位	Wageningen University & Research; University of Illinois System; University of Illinois Urbana-Champaign; University of Illinois System; University of Illinois Urbana-Champaign; Vrije Universiteit Amsterdam; University of Edinburgh; Melnikov Permafrost Institute, Siberian Branch of the RAS; Russian Academy of Sciences; University of Virginia; National Center Atmospheric Research (NCAR) - USA
推荐引用方式 GB/T 7714	Heijmans, Monique M. P. D.,Magnusson, Runa, I,Lara, Mark J.,et al. Tundra vegetation change and impacts on permafrost[J],2022,3(1).
APA	Heijmans, Monique M. P. D..,Magnusson, Runa, I.,Lara, Mark J..,Frost, Gerald, V.,Myers-Smith, Isla H..,...&Limpens, Juul.(2022).Tundra vegetation change and impacts on permafrost.NATURE REVIEWS EARTH & ENVIRONMENT,3(1).
MLA	Heijmans, Monique M. P. D.,et al."Tundra vegetation change and impacts on permafrost".NATURE REVIEWS EARTH & ENVIRONMENT 3.1(2022).