Negative effects of litter richness on root decomposition in the presence of detritivores

doi:10.1111/1365-2435.13057

	Negative effects of litter richness on root decomposition in the presence of detritivores
	Li, Yinong 1; Chen, Xi 2; Veen, G. F. (Ciska); Eisenhauer, Nico 4,5; Liang, Yu ; Zhou, Xiaomei 1; Zhang, Naili ; Ma, Keping
	2018
发表期刊	FUNCTIONAL ECOLOGY
ISSN	0269-8463
卷号	32 期号:4 页码:1079-1090
摘要	1. Decomposition is a vital process underlying many ecosystem functions. Although a growing number of studies have tested how litter richness affects the decomposition of above-ground plant organs, knowledge remains limited about the decomposition of root mixtures. Here, we used a field experiment in a subtropical forest to investigate how species richness in root litter mixtures (air-dried fresh fine roots) affects the decomposition of root litter material. 2. On the basis of the concept of resource complementarity, we hypothesized that root litter would decompose faster as the richness of the root litter mixture increased. In addition, we expected the presence of detritivores would modify the effect of root richness on mass loss, because detritivores might experience bottom-up effects from specific plant species and might affect microbial decomposer communities. 3. We found that the richness level of root litter mixtures did not affect mass loss in the absence of detritivores. In the presence of detritivores, all root litter types decomposed faster. Notably, the positive effect of detritivores was stronger at low root litter richness than at high root litter richness, particularly during the early stages of decomposition (the first two sampling points) when litter mass loss was roughly double at low root litter richness compared to that at high root litter richness. The composition of the root fungal community measured at the last sampling point did not differ significantly across root richness levels, and was not affected by the presence of detritivores. 4. Synthesis. Our findings demonstrate that detritivores modify the relationship between root litter diversity and root litter decomposition in subtropical forest ecosystems. This highlights an importance of cascade effects between different trophic organisms on ecosystem functioning.
关键词	litterbags mass loss microbial decomposer plant species richness roots subtropical forest
学科领域	Ecology
DOI	10.1111/1365-2435.13057
收录类别	SCI
语种	英语
WOS关键词	SOIL MICROBIAL COMMUNITIES ; TROPICAL RAIN-FOREST ; LEAF-LITTER ; PLANT DIVERSITY ; ECOSYSTEM FUNCTION ; SPECIES COMPLEMENTARITY ; FUNGAL COMMUNITY ; BIODIVERSITY ; EARTHWORMS ; DYNAMICS
WOS记录号	WOS:000429323400022
出版者	WILEY
文献子类	Article
出版地	HOBOKEN
EISSN	1365-2435
资助机构	Deutsche Forschungsgemeinschaft (DFG)German Research Foundation (DFG) [FZT 118] ; VENI-grant from the Netherlands Organisation for Scientific Research [863.14.013] ; National Key Research and Development Project of China from the Ministry of Science and Technology of China [2017YFA0605103] ; Strategic Priority Research Program of the Chinese Academy of SciencesChinese Academy of Sciences [XDPB0203] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31670535, 31470565, 31270559]
作者邮箱	zhouxiaomei66@sohu.com ; zhangnl@ibcas.ac.cn
作品OA属性	Green Published
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/20724
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China 2.Jilin Normal Univ, Inst Modern Agr Biotechnol, Siping, Peoples R China 3.Chinese Acad Agr Sci, Inst Special Anim & Plant Sci, Changchun, Jilin, Peoples R China 4.Veen, G. F. (Ciska)] Netherlands Inst Ecol NIOO KNAW, Dept Terr Ecol, Wageningen, Netherlands 5.German Ctr Integrat Biodivers Res iDiv, Leipzig, Germany 6.Univ Leipzig, Inst Biol, Leipzig, Germany
推荐引用方式 GB/T 7714	Li, Yinong,Chen, Xi,Veen, G. F. ,et al. Negative effects of litter richness on root decomposition in the presence of detritivores[J]. FUNCTIONAL ECOLOGY,2018,32(4):1079-1090.
APA	Li, Yinong.,Chen, Xi.,Veen, G. F. .,Eisenhauer, Nico.,Liang, Yu.,...&Ma, Keping.(2018).Negative effects of litter richness on root decomposition in the presence of detritivores.FUNCTIONAL ECOLOGY,32(4),1079-1090.
MLA	Li, Yinong,et al."Negative effects of litter richness on root decomposition in the presence of detritivores".FUNCTIONAL ECOLOGY 32.4(2018):1079-1090.

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