气候变化领域集成服务门户(CCPortal): Biocrusts mediate a new mechanism for land degradation under a changing climate

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DOI	10.1038/s41558-021-01249-6
	Biocrusts mediate a new mechanism for land degradation under a changing climate
	Phillips M.L.; McNellis B.E.; Howell A.; Lauria C.M.; Belnap J.; Reed S.C.
发表日期	2022
ISSN	1758-678X
起始页码	71
结束页码	76
卷号	12 期号:1
英文摘要	Global concerns for desertification have focused on the slow recovery of extensive and expanding drylands following disturbance, which may be exacerbated by climate change. Biological soil crusts (biocrusts) are photosynthetic soil communities found in drylands worldwide, which are central to the stability and resilience of dryland ecosystems, but vulnerable to global change. Here we use multiple decade-long experiments to investigate the consequences of climate and land-use change on biocrusts and soil stability. Biocrusts recovered rapidly under ambient temperatures but warming interacted with the precipitation disturbance to halt recovery. Moreover, warming alone caused losses of mosses, lichens and soil stability. Our results present a new mechanism contributing to land degradation in drylands whereby warming drives a state shift in biocrust communities, which degrades soil stability. The synergistic effects of climate and land-use change co-occur globally and our results support projections of increased desertification and lowered dryland resilience under warming. © 2022, This is a U.S. government work and not under copyright protection in the U.S.; foreign copyright protection may apply.
语种	英语
scopus关键词	climate change; desertification; disturbance; dryland farming; global warming; land degradation; land use change; precipitation (climatology); soil crust; soil fauna
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/256793
作者单位	US Geological Survey, Southwest Biological Science Center, Moab, UT, United States; New Mexico State University, Department of Plant and Environmental Sciences, Las Cruces, NM, United States
推荐引用方式 GB/T 7714	Phillips M.L.,McNellis B.E.,Howell A.,et al. Biocrusts mediate a new mechanism for land degradation under a changing climate[J],2022,12(1).
APA	Phillips M.L.,McNellis B.E.,Howell A.,Lauria C.M.,Belnap J.,&Reed S.C..(2022).Biocrusts mediate a new mechanism for land degradation under a changing climate.Nature Climate Change,12(1).
MLA	Phillips M.L.,et al."Biocrusts mediate a new mechanism for land degradation under a changing climate".Nature Climate Change 12.1(2022).