气候变化领域集成服务门户(CCPortal): Wildfire and degradation accelerate northern peatland carbon release

CCPortal

DOI	10.1038/s41558-023-01657-w
	Wildfire and degradation accelerate northern peatland carbon release
	Wilkinson, S. L.; Andersen, R.; Moore, P. A.; Davidson, S. J.; Granath, G.; Waddington, J. M.
发表日期	2023
ISSN	1758-678X
EISSN	1758-6798
起始页码	456
结束页码	+
卷号	13 期号:5
英文摘要	The northern peatland carbon sink plays a vital role in climate regulation; however, the future of the carbon sink is uncertain, in part, due to the changing interactions of peatlands and wildfire. Here, we use empirical datasets from natural, degraded and restored peatlands in non-permafrost boreal and temperate regions to model net ecosystem exchange and methane fluxes, integrating peatland degradation status, wildfire combustion and post-fire dynamics. We find that wildfire processes reduced carbon uptake in pristine peatlands by 35% and further enhanced emissions from degraded peatlands by 10%. The current small net sink is vulnerable to the interactions of peatland degraded area, burn rate and peat burn severity. Climate change impacts accelerated carbon losses, where increased burn severity and burn rate reduced the carbon sink by 38% and 65%, respectively, by 2100. However, our study demonstrates the potential for active peatland restoration to buffer these impacts. Northern peatland carbon sink plays a vital role in climate regulation. Here, the authors show that wildfire reduced peatland carbon uptake and enhanced emissions from degraded peatlands; climate change impacts accelerated carbon losses where increased burn rate and severity reduced carbon sink.
英文关键词	BOREAL FOREST; FIRE; EMISSIONS; METHANE; ACCUMULATION; SINK
WOS研究方向	Environmental Sciences ; Environmental Studies ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000975549100002
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/282282
作者单位	McMaster University; University of Toronto; Simon Fraser University; UHI Millennium Institute; University of Plymouth; Uppsala University
推荐引用方式 GB/T 7714	Wilkinson, S. L.,Andersen, R.,Moore, P. A.,et al. Wildfire and degradation accelerate northern peatland carbon release[J],2023,13(5).
APA	Wilkinson, S. L.,Andersen, R.,Moore, P. A.,Davidson, S. J.,Granath, G.,&Waddington, J. M..(2023).Wildfire and degradation accelerate northern peatland carbon release.Nature Climate Change,13(5).
MLA	Wilkinson, S. L.,et al."Wildfire and degradation accelerate northern peatland carbon release".Nature Climate Change 13.5(2023).