IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Chemical diversity and incubation time affect non -additive responses of soil carbon and nitrogen cycling to litter mixtures from an alpine steppe soil
Chen, Youchao1,2; Ma, Shuqin1,2; Sun, Jian3; Wang, Xiaodan1; Cheng, Genwei1; Lu, Xuyang1
Corresponding AuthorXuyang Lu
2017
Source PublicationSOIL BIOLOGY & BIOCHEMISTRY
ISSN0038-0717
Volume109Pages:124-134
SubtypeArticle
Abstract

The mechanisms of litter-mixing effects on soil carbon (C) and nitrogen (N) cycling in alpine ecosystems remain inconclusive. In this study, we employed a four-month litter-mixing experiment to examine the relationship between litter chemical diversity, incubation time and litter-mixing effects on soil C and N fluxes from an alpine steppe ecosystem in Northern Tibet. Litter mixtures caused predominantly non additive effects on soil C and N fluxes, with more synergistic effects for carbon dioxide (CO2)/nitrous oxide (N2O) emissions while more antagonistic effects for soluble organic C (SOC), total inorganic N (TIN), microbial biomass C (MBC) and urease activity (UA). Litter-mixture would largely increase the fluxes of CO2, N2O emission and SON, while decrease SOC, TIN, MBC and UA concentration. We calculated six chemical diversity indices, and found litter chemical diversity correlated with the strength of litter mixing effect on soil C and N, but the indices we chose may be influenced our understanding of the relationship. Our results also showed that models including the chemical diversity indices and incubation time generally gave better explanation on variations of litter-mixing effects. This work demonstrated a general relationship between litter chemical diversity and non-additive responses of soil C and N cycling, and suggested that incubation time is an important factor in understanding the litter-mixing effects. (C) 2017 Elsevier Ltd. All rights reserved.

KeywordLitter Mixture Chemical Diversity Soil c And n Cycling Alpine Steppe Northern Tibet
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1016/j.soilbio.2017.02.007
WOS Subject ExtendedAgriculture
Indexed BySCI
WOS KeywordFUNCTIONAL DIVERSITY ; LEAF-LITTER ; ECOSYSTEM FUNCTION ; DECOMPOSITION DYNAMICS ; SPECIES-DIVERSITY ; NUTRIENT DYNAMICS ; PATAGONIAN MONTE ; TIBETAN PLATEAU ; GLOBAL PATTERNS ; MULTIPLE TRAITS
Language英语
Quartile1区
TOP
WOS SubjectSoil Science
WOS IDWOS:000397691700012
Funding OrganizationNatural Science Foundation of China(41371267 ; Key Laboratory of Mountain Surface Processes and Ecological Regulation ; Chinese Academy of Sciences ; China Scholarship Council(201504910646) ; 41671262)
Citation statistics
Cited Times:19[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/18616
Collection山地表生过程与生态调控重点实验室
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Processes & Ecol Regulat, Chengdu 610041, Peoples R China
2.Chinese Acad Sci, Univ Chinese Acad Sci, Beijing 100101, Peoples R China
3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosystem Network Observat & Modelling, Beijing 100101, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Chen, Youchao,Ma, Shuqin,Sun, Jian,et al. Chemical diversity and incubation time affect non -additive responses of soil carbon and nitrogen cycling to litter mixtures from an alpine steppe soil[J]. SOIL BIOLOGY & BIOCHEMISTRY,2017,109:124-134.
APA Chen, Youchao,Ma, Shuqin,Sun, Jian,Wang, Xiaodan,Cheng, Genwei,&Lu, Xuyang.(2017).Chemical diversity and incubation time affect non -additive responses of soil carbon and nitrogen cycling to litter mixtures from an alpine steppe soil.SOIL BIOLOGY & BIOCHEMISTRY,109,124-134.
MLA Chen, Youchao,et al."Chemical diversity and incubation time affect non -additive responses of soil carbon and nitrogen cycling to litter mixtures from an alpine steppe soil".SOIL BIOLOGY & BIOCHEMISTRY 109(2017):124-134.
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