气候变化领域集成服务门户(CCPortal): Demographic controls of aboveground forest biomass across North America

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DOI	10.1111/ele.12574
	Demographic controls of aboveground forest biomass across North America
	Vanderwel M.C.; Zeng H.; Caspersen J.P.; Kunstler G.; Lichstein J.W.
发表日期	2016
ISSN	1461-023X
EISSN	1461-0248
卷号	19 期号:4
英文摘要	Ecologists have limited understanding of how geographic variation in forest biomass arises from differences in growth and mortality at continental to global scales. Using forest inventories from across North America, we partitioned continental-scale variation in biomass growth and mortality rates of 49 tree species groups into (1) species-independent spatial effects and (2) inherent differences in demographic performance among species. Spatial factors that were separable from species composition explained 83% and 51% of the respective variation in growth and mortality. Moderate additional variation in mortality (26%) was attributable to differences in species composition. Age-dependent biomass models showed that variation in forest biomass can be explained primarily by spatial gradients in growth that were unrelated to species composition. Species-dependent patterns of mortality explained additional variation in biomass, with forests supporting less biomass when dominated by species that are highly susceptible to competition (e.g. Populus spp.) or to biotic disturbances (e.g. Abies balsamea). © 2016 John Wiley & Sons Ltd/CNRS.
英文关键词	Biomass; Carbon; Growth; Mortality; Productivity; Trees
学科领域	Abies balsamea; Populus; biodiversity; biological model; biomass; ecosystem; forest; growth, development and aging; North America; physiology; time; tree; Biodiversity; Biomass; Ecosystem; Forests; Models, Biological; North America; Time; Trees
语种	英语
scopus关键词	Abies balsamea; Populus; biodiversity; biological model; biomass; ecosystem; forest; growth, development and aging; North America; physiology; time; tree; Biodiversity; Biomass; Ecosystem; Forests; Models, Biological; North America; Time; Trees
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/118570
作者单位	Department of Biology, University of Regina, 3737 Wascana Pkwy, Regina, SK S4S 0A2, Canada; Department of Biology, University of Florida, Gainesville, FL 32611, United States; Faculty of Forestry, University of Toronto, 33 Willcocks St., Toronto, ON M5S 3B3, Canada; Irstea, UR EMGR, 2 rue de la Papeterie-BP 76, St-Martin-d'Hères, F-38402, France; Univ. Grenoble Alpes, Grenoble, F-38402, France
推荐引用方式 GB/T 7714	Vanderwel M.C.,Zeng H.,Caspersen J.P.,et al. Demographic controls of aboveground forest biomass across North America[J],2016,19(4).
APA	Vanderwel M.C.,Zeng H.,Caspersen J.P.,Kunstler G.,&Lichstein J.W..(2016).Demographic controls of aboveground forest biomass across North America.Ecology Letters,19(4).
MLA	Vanderwel M.C.,et al."Demographic controls of aboveground forest biomass across North America".Ecology Letters 19.4(2016).