GSTDTAP  > 气候变化
DOI10.1111/gcb.14357
Traits drive global wood decomposition rates more than climate
Hu, Zhenhong1,2,3; Michaletz, Sean T.4,5,6; Johnson, Daniel J.4; McDowell, Nate G.7; Huang, Zhiqun8; Zhou, Xuhui1,9; Xu, Chonggang4
2018-11-01
发表期刊GLOBAL CHANGE BIOLOGY
ISSN1354-1013
EISSN1365-2486
出版年2018
卷号24期号:11页码:5259-5269
文章类型Article
语种英语
国家Peoples R China; USA
英文摘要

Wood decomposition is a major component of the global carbon cycle. Decomposition rates vary across climate gradients, which is thought to reflect the effects of temperature and moisture on the metabolic kinetics of decomposers. However, decomposition rates also vary with wood traits, which may reflect the influence of stoichiometry on decomposer metabolism as well as geometry relating the surface areas that decomposers colonize with the volumes they consume. In this paper, we combined metabolic and geometric scaling theories to formalize hypotheses regarding the drivers of wood decomposition rates, and assessed these hypotheses using a global compilation of data on climate, wood traits, and wood decomposition rates. Our results are consistent with predictions from both metabolic and geometric scaling theories. Approximately half of the global variation in decomposition rates was explained by wood traits (nitrogen content and diameter), whereas only a fifth was explained by climate variables (air temperature, precipitation, and relative humidity). These results indicate that global variation in wood decomposition rates is best explained by stoichiometric and geometric wood traits. Our findings suggest that inclusion of wood traits in global carbon cycle models can improve predictions of carbon fluxes from wood decomposition.


英文关键词carbon cycling metabolic scaling theory wood decomposition wood diameter wood nitrogen
领域气候变化 ; 资源环境
收录类别SCI-E
WOS记录号WOS:000447760300021
WOS关键词TERRESTRIAL PLANT-PRODUCTION ; LITTER DECOMPOSITION ; ECOENZYMATIC STOICHIOMETRY ; COMMUNITY COMPOSITION ; TEMPERATURE ; SIZE ; SOIL ; METAANALYSIS ; ALLOMETRY ; DYNAMICS
WOS类目Biodiversity Conservation ; Ecology ; Environmental Sciences
WOS研究方向Biodiversity & Conservation ; Environmental Sciences & Ecology
引用统计
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/17064
专题气候变化
资源环境科学
作者单位1.East China Normal Univ, Ctr Global Change & Ecol Forecasting, ECNU UH Joint Translat Sci & Technol Res Inst, Sch Ecol & Environm Sci,Tiantong Natl Stn Forest, Shanghai 200241, Peoples R China;
2.South China Agr Univ, Coll Nat Resources & Environm, Guangzhou, Guangdong, Peoples R China;
3.Fudan Univ, Minist Educ, Key Lab Biodivers Sci & Ecol Engn, Shanghai, Peoples R China;
4.Los Alamos Natl Lab, Earth & Environm Sci Div, Los Alamos, NM 87544 USA;
5.Univ Arizona, Biosphere 2, Tucson, AZ USA;
6.Univ Arizona, Dept Ecol & Evolutionary Biol, Tucson, AZ USA;
7.Pacific Northwest Natl Lab, Earth Syst Anal & Modeling Div, Richland, WA USA;
8.Fujian Normal Univ, Key Lab Humid Subtrop Ecogeog Proc, Minist Educ, Fuzhou, Fujian, Peoples R China;
9.Shanghai Inst Pollut Control & Ecol Secur, Shanghai, Peoples R China
推荐引用方式
GB/T 7714
Hu, Zhenhong,Michaletz, Sean T.,Johnson, Daniel J.,et al. Traits drive global wood decomposition rates more than climate[J]. GLOBAL CHANGE BIOLOGY,2018,24(11):5259-5269.
APA Hu, Zhenhong.,Michaletz, Sean T..,Johnson, Daniel J..,McDowell, Nate G..,Huang, Zhiqun.,...&Xu, Chonggang.(2018).Traits drive global wood decomposition rates more than climate.GLOBAL CHANGE BIOLOGY,24(11),5259-5269.
MLA Hu, Zhenhong,et al."Traits drive global wood decomposition rates more than climate".GLOBAL CHANGE BIOLOGY 24.11(2018):5259-5269.
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