气候变化领域集成服务门户(CCPortal): Decadal changes in fire frequencies shift tree communities and functional traits

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DOI	10.1038/s41559-021-01401-7
	Decadal changes in fire frequencies shift tree communities and functional traits
	Pellegrini A.F.A.; Refsland T.; Averill C.; Terrer C.; Staver A.C.; Brockway D.G.; Caprio A.; Clatterbuck W.; Coetsee C.; Haywood J.D.; Hobbie S.E.; Hoffmann W.A.; Kush J.; Lewis T.; Moser W.K.; Overby S.T.; Patterson W.A.; III; Peay K.G.; Reich P.B.; Ryan C.; Sayer M.A.S.; Scharenbroch B.C.; Schoennagel T.; Smith G.R.; Stephan K.; Swanston C.; Turner M.G.; Varner J.M.; Jackson R.B.
发表日期	2021
ISSN	2397-334X
起始页码	504
结束页码	512
卷号	5 期号:4
英文摘要	Global change has resulted in chronic shifts in fire regimes. Variability in the sensitivity of tree communities to multi-decadal changes in fire regimes is critical to anticipating shifts in ecosystem structure and function, yet remains poorly understood. Here, we address the overall effects of fire on tree communities and the factors controlling their sensitivity in 29 sites that experienced multi-decadal alterations in fire frequencies in savanna and forest ecosystems across tropical and temperate regions. Fire had a strong overall effect on tree communities, with an average fire frequency (one fire every three years) reducing stem density by 48% and basal area by 53% after 50 years, relative to unburned plots. The largest changes occurred in savanna ecosystems and in sites with strong wet seasons or strong dry seasons, pointing to fire characteristics and species composition as important. Analyses of functional traits highlighted the impact of fire-driven changes in soil nutrients because frequent burning favoured trees with low biomass nitrogen and phosphorus content, and with more efficient nitrogen acquisition through ectomycorrhizal symbioses. Taken together, the response of trees to altered fire frequencies depends both on climatic and vegetation determinants of fire behaviour and tree growth, and the coupling between fire-driven nutrient losses and plant traits. ? 2021, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
scopus关键词	ecosystem; fire; forest; soil; tree; Ecosystem; Fires; Forests; Soil; Trees
来源期刊	Nature Ecology & Evolution
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/256989
作者单位	Department of Earth System Science, Stanford University, Stanford, CA, United States; Department of Plant Sciences, University of Cambridge, Cambridge, United Kingdom; Department of Natural Resources & Environmental Science, University of Nevada, Reno, NV, United States; Department of Environmental Systems Science, Institute of Integrative Biology, ETH Zürich, Zürich, Switzerland; Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA, United States; Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT, United States; Southern Research Station, USDA Forest Service, Auburn, AL, United States; National Parks Service, Sequoia & Kings Canyon National Parks, Three Rivers, CA, United States; Department of Forestry, Wildlife, and Fisheries, University of Tennessee, Knoxville, TN, United States; Scientific Services, South African National Parks, Kruger National Park, Skukuza, South Africa; School of Natural Resource Management, Nelson Mandela Univer...
推荐引用方式 GB/T 7714	Pellegrini A.F.A.,Refsland T.,Averill C.,et al. Decadal changes in fire frequencies shift tree communities and functional traits[J],2021,5(4).
APA	Pellegrini A.F.A..,Refsland T..,Averill C..,Terrer C..,Staver A.C..,...&Jackson R.B..(2021).Decadal changes in fire frequencies shift tree communities and functional traits.Nature Ecology & Evolution,5(4).
MLA	Pellegrini A.F.A.,et al."Decadal changes in fire frequencies shift tree communities and functional traits".Nature Ecology & Evolution 5.4(2021).