Termites amplify the effects of wood traits on decomposition rates among multiple bamboo and dicot woody species

doi:10.1111/1365-2745.12427

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	Termites amplify the effects of wood traits on decomposition rates among multiple bamboo and dicot woody species
	Liu,Guofang; Cornwell,William K.; Cao,Kunfang; Hu,Yukun; Van Logtestijn,Richardus S. P.; Yang,Shijian; Xie,Xiufang; Zhang,Yalin; Ye,Duo; Pan,Xu; Ye,Xuehua; Huang,Zhenying; Dong,Ming; Cornelissen,Johannes H. C.
	2015-09-01
发表期刊	JOURNAL OF ECOLOGY
卷号	103 期号:5 页码:1214-1223
摘要	Wood decomposition is a key process in the terrestrial carbon cycle, controlling carbon storage with feedback to climate. In (sub) tropical forest, termites are major players in wood decomposition, but their role relative to that of microbial decomposers and wood traits of different tree species is poorly understood. The current literature also has strong bias towards dicot tree decomposition, while abundant woody monocots, particularly bamboos, also contribute greatly to (sub) tropical carbon cycling. Here, we present the first experiment to disentangle effects of dead wood traits and termite activity on decomposition of 66 angiosperm species of wide-ranging phylogenetic position: 31 bamboos, eight non-bamboo Poaceae, 18 eudicots and nine magnoliids. We incubated dead stems of up to 4 size classes per species in a common garden' in tropical S China. We tested the hypotheses that (i) dead wood of bamboo (monocots) is less decomposable than dead wood of eudicots or magnoliids; (ii) both microbial- and termite-driven decomposition show negative relationships with initial wood density and with dry matter content. Bamboo wood generally decomposed more slowly than dicot wood but only slightly slower at given wood density or diameter. Wood decomposition in both bamboo and dicot clades decreased with wood density or dry matter content. Termites contributed greatly to this pattern, explaining 53.4% of the variance in wood decomposition and preferentially attacking dead wood of lower initial density, which corresponded with thicker outer culm walls in the case of bamboo species. Thus, termites strongly strengthen the relationship between species' wood traits and litter decomposition as driven by microbial activity.Synthesis. These previously unknown relationships among dead wood quality, diameter, termites and decomposing microbes of both woody monocots and dicots will advance our understanding of the driving mechanisms of (sub) tropical wood decomposition and its contribution to the global carbon cycle.
关键词	Angiosperms Bamboo Carbon Cycle Coarse Woody Debris Decay Eudicots Functional Traits Plant-soil (Below-ground) Interactions Termites
DOI	10.1111/1365-2745.12427
收录类别	SCI
语种	英语
WOS记录号	WOS:000360216400012
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/25114
专题	离退休
推荐引用方式 GB/T 7714	Liu,Guofang,Cornwell,William K.,Cao,Kunfang,et al. Termites amplify the effects of wood traits on decomposition rates among multiple bamboo and dicot woody species[J]. JOURNAL OF ECOLOGY,2015,103(5):1214-1223.
APA	Liu,Guofang.,Cornwell,William K..,Cao,Kunfang.,Hu,Yukun.,Van Logtestijn,Richardus S. P..,...&Cornelissen,Johannes H. C..(2015).Termites amplify the effects of wood traits on decomposition rates among multiple bamboo and dicot woody species.JOURNAL OF ECOLOGY,103(5),1214-1223.
MLA	Liu,Guofang,et al."Termites amplify the effects of wood traits on decomposition rates among multiple bamboo and dicot woody species".JOURNAL OF ECOLOGY 103.5(2015):1214-1223.

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