globalchange  > 气候减缓与适应
DOI: 10.1111/ele.12574
Scopus记录号: 2-s2.0-84959899410
论文题名:
Demographic controls of aboveground forest biomass across North America
作者: Vanderwel M.C.; Zeng H.; Caspersen J.P.; Kunstler G.; Lichstein J.W.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2016
卷: 19, 期:4
起始页码: 414
结束页码: 423
语种: 英语
英文关键词: Biomass ; Carbon ; Growth ; Mortality ; Productivity ; Trees
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
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.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107782
Appears in Collections:气候减缓与适应

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作者单位: Department of Biology, University of Regina, 3737 Wascana Pkwy, Regina, SK, Canada; Department of Biology, University of Florida, Gainesville, FL, United States; Faculty of Forestry, University of Toronto, 33 Willcocks St., Toronto, ON, Canada; Irstea, UR EMGR, 2 rue de la Papeterie-BP 76, St-Martin-d'Hères, France; Univ. Grenoble Alpes, Grenoble, France

Recommended Citation:
Vanderwel M.C.,Zeng H.,Caspersen J.P.,et al. Demographic controls of aboveground forest biomass across North America[J]. Ecology Letters,2016-01-01,19(4)
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