气候变化领域集成服务门户(CCPortal): Land cover changes across Greenland dominated by a doubling of vegetation in three decades

CCPortal

DOI	10.1038/s41598-024-52124-1
	Land cover changes across Greenland dominated by a doubling of vegetation in three decades
	Grimes, Michael; Carrivick, Jonathan L.; Smith, Mark W.; Comber, Alexis J.
发表日期	2024
ISSN	2045-2322
起始页码	14
结束页码	1
卷号	14 期号:1
英文摘要	Land cover responses to climate change must be quantified for understanding Arctic climate, managing Arctic water resources, maintaining the health and livelihoods of Arctic societies and for sustainable economic development. This need is especially pressing in Greenland, where climate changes are amongst the most pronounced of anywhere in the Arctic. Ice loss from the Greenland Ice Sheet and from glaciers and ice caps has increased since the 1980s and consequently the proglacial parts of Greenland have expanded rapidly. Here we determine proglacial land cover changes at 30 m spatial resolution across Greenland during the last three decades. Besides the vastly decreased ice cover (- 28,707 km2 +/- 9767 km2), we find a doubling in total areal coverage of vegetation (111% +/- 13%), a quadrupling in wetlands coverage (380% +/- 29%), increased meltwater (15% +/- 15%), decreased bare bedrock (- 16% +/- 4%) and increased coverage of fine unconsolidated sediment (4% +/- 13%). We identify that land cover change is strongly associated with the difference in the number of positive degree days, especially above 6 degrees C between the 1980s and the present day. Contrastingly, absolute temperature increase has a negligible association with land cover change. We explain that these land cover changes represent local rapid and intense geomorphological activity that has profound consequences for land surface albedo, greenhouse gas emissions, landscape stability and sediment delivery, and biogeochemical processes.
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:001162143900058
来源期刊	SCIENTIFIC REPORTS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/288428
作者单位	University of Leeds
推荐引用方式 GB/T 7714	Grimes, Michael,Carrivick, Jonathan L.,Smith, Mark W.,et al. Land cover changes across Greenland dominated by a doubling of vegetation in three decades[J],2024,14(1).
APA	Grimes, Michael,Carrivick, Jonathan L.,Smith, Mark W.,&Comber, Alexis J..(2024).Land cover changes across Greenland dominated by a doubling of vegetation in three decades.SCIENTIFIC REPORTS,14(1).
MLA	Grimes, Michael,et al."Land cover changes across Greenland dominated by a doubling of vegetation in three decades".SCIENTIFIC REPORTS 14.1(2024).