Non-additive effect of species diversity and temperature sensitivity of mixed litter decomposition in the alpine meadow on Tibetan Plateau

NWIPB OpenIR

	Non-additive effect of species diversity and temperature sensitivity of mixed litter decomposition in the alpine meadow on Tibetan Plateau
	Duan, Jichuang ; Wang, Shiping ; Zhang, Zhenhua ; Xu, Guangping ; Luo, Caiyun ; Chang, Xiaofeng ; Zhu, Xiaoxue ; Cui, Shujuan ; Zhao, Xinquan ; Wang, Wenying ; Du, Mingyuan ; Wang, SP (reprint author), Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol & Biodivers, Beijing 100101, Peoples R China.
	2013-02-01
发表期刊	SOIL BIOLOGY & BIOCHEMISTRY ; Duan, JC; Wang, SP; Zhang, ZH; Xu, GP; Luo, CY; Chang, XF; Zhu, XX; Cui, SJ; Zhao, XQ; Wang, WY; Du, MY.Non-additive effect of species diversity and temperature sensitivity of mixed litter decomposition in the alpine meadow on Tibetan Plateau,SOIL BIOLOGY & BIOCHEMISTRY,2013,57():841-847
摘要	Few studies of the effects of litter diversity on the temperature sensitivity of mixed litter mass loss (MLML) are available. We tested the hypothesis that high litter diversity would reduce the magnitude of effects of climate and environmental change on MLML with 0.5/1 mm litter bags and sampling once after 1 yr of decomposition, using 51 combinations of litter mixtures from 25 dominant species at 3200 and 3800 m elevations on the Tibetan Plateau. Generally, our study supported our hypothesis. High temperature (i.e. lower elevation) reduced the dependency of MLML and non-additive effects on species richness. Species composition significantly affected MLML and its Q(10) (i.e. the ratio of litter mass loss rate at a temperature T-1 that is 10 degrees C lower than a temperature T-2) when species richness was less than 8. Shrubs significantly decreased the Q(1)0 of MLML when the species richness of litter mixture was less than 4. These findings suggest that the influence of future warming on MLML may depend on the balance between the magnitude of the impacts of climate change on shrub invasion and loss of species diversity in alpine region. (C) 2012 Elsevier Ltd. All rights reserved.; Few studies of the effects of litter diversity on the temperature sensitivity of mixed litter mass loss (MLML) are available. We tested the hypothesis that high litter diversity would reduce the magnitude of effects of climate and environmental change on MLML with 0.5/1 mm litter bags and sampling once after 1 yr of decomposition, using 51 combinations of litter mixtures from 25 dominant species at 3200 and 3800 m elevations on the Tibetan Plateau. Generally, our study supported our hypothesis. High temperature (i.e. lower elevation) reduced the dependency of MLML and non-additive effects on species richness. Species composition significantly affected MLML and its Q(10) (i.e. the ratio of litter mass loss rate at a temperature T-1 that is 10 degrees C lower than a temperature T-2) when species richness was less than 8. Shrubs significantly decreased the Q(1)0 of MLML when the species richness of litter mixture was less than 4. These findings suggest that the influence of future warming on MLML may depend on the balance between the magnitude of the impacts of climate change on shrub invasion and loss of species diversity in alpine region. (C) 2012 Elsevier Ltd. All rights reserved.
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/16734
专题	中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Duan, Jichuang,Wang, Shiping,Zhang, Zhenhua,et al. Non-additive effect of species diversity and temperature sensitivity of mixed litter decomposition in the alpine meadow on Tibetan Plateau[J]. SOIL BIOLOGY & BIOCHEMISTRY, Duan, JC; Wang, SP; Zhang, ZH; Xu, GP; Luo, CY; Chang, XF; Zhu, XX; Cui, SJ; Zhao, XQ; Wang, WY; Du, MY.Non-additive effect of species diversity and temperature sensitivity of mixed litter decomposition in the alpine meadow on Tibetan Plateau,SOIL BIOLOGY & BIOCHEMISTRY,2013,57():841-847,2013.
APA	Duan, Jichuang.,Wang, Shiping.,Zhang, Zhenhua.,Xu, Guangping.,Luo, Caiyun.,...&Wang, SP .(2013).Non-additive effect of species diversity and temperature sensitivity of mixed litter decomposition in the alpine meadow on Tibetan Plateau.SOIL BIOLOGY & BIOCHEMISTRY.
MLA	Duan, Jichuang,et al."Non-additive effect of species diversity and temperature sensitivity of mixed litter decomposition in the alpine meadow on Tibetan Plateau".SOIL BIOLOGY & BIOCHEMISTRY (2013).