Leaf-litter overyielding in a forest biodiversity experiment in subtropical China

doi:10.1186/s40663-018-0157-8

	Leaf-litter overyielding in a forest biodiversity experiment in subtropical China
	Huang, Yuanyuan ; Ma, Keping1 ; Niklaus, Pascal A.; Schmid, Bernhard 2
	2018
发表期刊	FOREST ECOSYSTEMS
ISSN	2095-6355
卷号	5
摘要	Background: The production and subsequent turnover of aboveground litter is an important process in the ecosystem carbon (C) cycle. Litterfall links above- and belowground processes by transferring organic material to the soil where it becomes available to heterotrophs, fueling nutrient cycling. Little is known about how litter fluxes respond to experimental manipulation of tree species richness. Methods: We sampled litterfall in a large-scale forest biodiversity experiment in subtropical China. Litter was collected at monthly intervals during peak senescing season for two years and throughout the whole year in 2016, using 0.75 m x 0.7 5m litter traps, in plots with a tree species richness of 1, 2, 4, 8 and 16 species. Results: Cumulated annual litter production increased with tree species richness from an average of 1.96 +/- 0.25Mg.ha(-1).yr.(-1) in monocultures to 4.39 +/- 1.15Mg.ha(-1).yr.(-1) in 16-species mixtures. At site B, the doubling of species richness resulted in a positive effect with peak litter production increasing from 0.09 Mg.ha(-1) when trees were 5years old in 2015, to 0.14 Mg.ha(-1) in 2016. The intra-annual distribution of litter production varied strongly among species, leading to a larger community niche for seasonal distribution of litter in species-rich than in species-poor plots. Community-niche size was positively correlated with litter production, thus providing an explanation for the species richness effects. Conclusions: Different species had complementary temporal dynamics of litterfall, which led to a more or less constant litter supply in species-rich stands over the whole year. This caused positive richness effects on litter production which in turn may positively affect mineralization and subsequent tree growth.
关键词	BEF-China Temporal complementarity effects Litterfall Overyielding Species richness
学科领域	Forestry
DOI	10.1186/s40663-018-0157-8
收录类别	SCI
语种	英语
WOS关键词	SPECIES RICHNESS ; TREE DIVERSITY ; CROWN PLASTICITY ; PRODUCTIVITY ; DECOMPOSITION ; PLANTATIONS
WOS记录号	WOS:000450926400001
出版者	SPRINGER
文献子类	Article
出版地	NEW YORK
EISSN	2197-5620
资助机构	EU 7th FP Project IDP-BRIDGES [608422] ; BEF-China Project - German Science Foundation [FOR-891] ; Institute of Botany of the Chinese Academy of Sciences ; University of Zurich Research Priority Program on Global Change and Biodiversity (URPP GCB)
作者邮箱	bernhard.schmid@uzh.ch
作品OA属性	gold, Green Accepted
引用统计	被引频次：21[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/2S10CLM1/20357
专题	植被与环境变化国家重点实验室
作者单位	1.Univ Zurich, Dept Evolutionary Biol & Environm Studies, Winterthurerstr 190, CH-8057 Zurich, Switzerland 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 3.Univ Zurich, Dept Geog, Winterthurerstr 190, CH-8057 Zurich, Switzerland
推荐引用方式 GB/T 7714	Huang, Yuanyuan,Ma, Keping,Niklaus, Pascal A.,et al. Leaf-litter overyielding in a forest biodiversity experiment in subtropical China[J]. FOREST ECOSYSTEMS,2018,5.
APA	Huang, Yuanyuan,Ma, Keping,Niklaus, Pascal A.,&Schmid, Bernhard.(2018).Leaf-litter overyielding in a forest biodiversity experiment in subtropical China.FOREST ECOSYSTEMS,5.
MLA	Huang, Yuanyuan,et al."Leaf-litter overyielding in a forest biodiversity experiment in subtropical China".FOREST ECOSYSTEMS 5(2018).

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