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Global importance of large-diameter trees

文献类型：期刊论文

作者Lutz, James A.6; Furniss, Tucker J.6; Johnson, Daniel J.1; Davies, Stuart J.7,8; Allen, David9; Alonso, Alfonso10; Anderson-Teixeira, Kristina J.7,11; Andrade, Ana12; Baltzer, Jennifer13; Becker, Kendall M. L.6
刊名GLOBAL ECOLOGY AND BIOGEOGRAPHY
出版日期2018-07-01
卷号27期号:7页码:849-864
ISSN号1466-822X
关键词forest biomass forest structure large-diameter trees latitudinal gradient resource inequality Smithsonian ForestGEO
DOI10.1111/geb.12747
通讯作者Lutz, James A.(james.lutz@usu.edu)
英文摘要Aim: To examine the contribution of large-diameter trees to biomass, stand structure, and species richness across forest biomes. Location: Global. Time period: Early 21st century. Major taxa studied: Woody plants. Methods: We examined the contribution of large trees to forest density, richness and biomass using a global network of 48 large (from 2 to 60 ha) forest plots representing 5,601,473 stems across 9,298 species and 210 plant families. This contribution was assessed using three metrics: the largest 1% of trees >= 1 cm diameter at breast height (DBH), all trees >= 60 cm DBH, and those rank-ordered largest trees that cumulatively comprise 50% of forest biomass. Results: Averaged across these 48 forest plots, the largest 1% of trees >= 1 cm DBH comprised 50% of aboveground live biomass, with hectare-scale standard deviation of 26%. Trees >= 60 cm DBH comprised 41% of aboveground live tree biomass. The size of the largest trees correlated with total forest biomass (r(2) 5.62, p < .001). Large-diameter trees in high biomass forests represented far fewer species relative to overall forest richness (r(2) = 5.45, p < .001). Forests with more diverse large-diameter tree communities were comprised of smaller trees (r(2) = 5.33, p < .001). Lower large-diameter richness was associated with large-diameter trees being individuals of more common species (r(2) =5.17, p=5.002). The concentration of biomass in the largest 1% of trees declined with increasing absolute latitude (r(2) = 5.46, p < .001), as did forest density (r(2) = 5.31, p < .001). Forest structural complexity increased with increasing absolute latitude (r(2) = 5.26, p < .001). Main conclusions: Because large-diameter trees constitute roughly half of the mature forest biomass worldwide, their dynamics and sensitivities to environmental change represent potentially large controls on global forest carbon cycling. We recommend managing forests for conservation of existing large-diameter trees or those that can soon reach large diameters as a simple way to conserve and potentially enhance ecosystem services.
资助项目Utah Agricultural Experiment Station[1153] ; National Natural Science Foundation of China ; National Science Foundation[1354741] ; National Science Foundation[1545761]
WOS研究方向Environmental Sciences & Ecology ; Physical Geography
语种英语
出版者WILEY
WOS记录号WOS:000439785700008
资助机构Utah Agricultural Experiment Station ; National Natural Science Foundation of China ; National Science Foundation
源URL[http://ir.imr.ac.cn/handle/321006/128821]  
专题金属研究所_中国科学院金属研究所
通讯作者Lutz, James A.
作者单位1.Utah State Univ, Biol Dept, Logan, UT 84322 USA
2.Tunghai Univ, Life Sci Dept, Taichung, Taiwan
3.Royal Soc SEARRP UK Malaysia, Danum Valley, Malaysia
4.Univ Sao Paulo, Dept Ecol, Sao Paulo, Brazil
5.Univ Hawaii, Dept Biol, Hilo, HI 96720 USA
6.Utah State Univ, Wildland Resources Dept, 5230 Old Main Hill, Logan, UT 84322 USA
7.Smithsonian Trop Res Inst, Ctr Trop Forest Sci, Forest Global Earth Observ, Panama City, Panama
8.Natl Museum Nat Hist, Dept Bot, Washington, DC 20560 USA
9.Middlebury Coll, Dept Biol, Middlebury, VT 05753 USA
10.Smithsonian Conservat Biol Inst, Natl Zool Pk, Ctr Conservat & Sustainabil, Washington, DC USA
推荐引用方式
GB/T 7714		 Lutz, James A.,Furniss, Tucker J.,Johnson, Daniel J.,et al. Global importance of large-diameter trees[J]. GLOBAL ECOLOGY AND BIOGEOGRAPHY,2018,27(7):849-864.
APA Lutz, James A..,Furniss, Tucker J..,Johnson, Daniel J..,Davies, Stuart J..,Allen, David.,...&Zimmerman, Jess K..(2018).Global importance of large-diameter trees.GLOBAL ECOLOGY AND BIOGEOGRAPHY,27(7),849-864.
MLA Lutz, James A.,et al."Global importance of large-diameter trees".GLOBAL ECOLOGY AND BIOGEOGRAPHY 27.7(2018):849-864.

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来源：金属研究所

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