IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Influences of litter diversity and soil moisture on soil microbial communities in decomposing mixed litter of alpine steppe species
Chen, Youchao1,2,3; Ma, Shuqin4; Jiang, Hongmao2; Hu, Yang2; Lu, Xuyang2
2020-11-01
Source PublicationGEODERMA
ISSN0016-7061
EISSN1872-6259
Volume377Pages:114577
SubtypeArticle
Contribution Rank2
AbstractMany studies have examined the effects of plant diversity and soil water availability on litter decomposition, but little is known about how these two factors interactively influence soil microbial communities, especially in alpine ecosystems. Therefore, the objective of this work was to investigate how litter diversity influences soil microbial communities under different moisture conditions in an alpine steppe ecosystem in Northern Tibet. We collected litter of four abundant plant species (Stipa purpurea, Sp; Carex moorcroftii, Cm; Leontopodium pusillum, Lp; and Artemisia nanschanica, An), and used phospholipid fatty acid (PLFA) analysis to measure soil microbial biomass and community structure. A fully factorial litter mixing experiment under different soil moisture conditions (i.e., 20%, 30% and 40% water holding capacity) was employed. The results showed that litter composition, rather than species richness, significantly affected soil microbial biomass and community composition. The presence of Sp, Cm and An exerted positive or negative effects on soil microbial communities. Litter quality (i.e., C:N ratio) could explain the effects of litter composition on soil microbial communities. High soil moisture facilitated the growth of gram-negative bacteria, while gram-positive bacteria and fungi were more abundant in lower moisture soil. We did not detect any interactive effects of litter species richness and soil moisture on the microbial communities. However, the effects of litter composition on soil microbial communities were dependent on soil moisture condition. These findings indicate that litter composition, rather than species richness, shows interactive effects with soil moisture on soil microbes, and both factors are important in regulating ecosystem functions.
KeywordNorthern Tibet Alpine steppe Litter diversity Soil microbial community Climate change
DOI10.1016/j.geoderma.2020.114577
Indexed BySCI ; EI
WOS KeywordPLANT DIVERSITY ; MASS-LOSS ; CARBON ; BIOMASS ; RESPONSES ; NITROGEN ; DYNAMICS ; MIXTURE ; STOICHIOMETRY ; PRECIPITATION
Language英语
Quartile1区
Funding ProjectNational Natural Science Foundation of China[31901198] ; National Natural Science Foundation of China[41671262] ; National Natural Science Foundation of China[41877338] ; National Natural Science Foundation of China[31770562] ; National Natural Science Foundation of China[31700337] ; Youth Innovation Promotion Association CAS[2018374] ; Key Laboratory of Mountain Surface Processes and Ecological Regulation, Chinese Academy of Sciences ; Natural Science Foundation of Tibet Autonomous Region
TOP
WOS Research AreaAgriculture
WOS SubjectSoil Science
WOS IDWOS:000560363900012
Funding OrganizationNational Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Key Laboratory of Mountain Surface Processes and Ecological Regulation, Chinese Academy of Sciences ; Natural Science Foundation of Tibet Autonomous Region
PublisherELSEVIER
EI Accession NumberAccession number:20202908950246
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/35475
Collection山地表生过程与生态调控重点实验室
Corresponding AuthorLu, Xuyang
Affiliation1.Chinese Acad Sci, Key Lab Aquat Bot & Watershed Ecol, Wuhan Bot Garden, Wuhan 430074, Hubei, Peoples R China;
2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China;
3.Chinese Acad Sci, Ctr Plant Ecol, Core Bot Gardens, Wuhan 430074, Peoples R China;
4.Henan Normal Univ, Coll Tourism, Xinxiang 453007, Henan, 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
Corresponding 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,Jiang, Hongmao,et al. Influences of litter diversity and soil moisture on soil microbial communities in decomposing mixed litter of alpine steppe species[J]. GEODERMA,2020,377:114577.
APA Chen, Youchao,Ma, Shuqin,Jiang, Hongmao,Hu, Yang,&Lu, Xuyang.(2020).Influences of litter diversity and soil moisture on soil microbial communities in decomposing mixed litter of alpine steppe species.GEODERMA,377,114577.
MLA Chen, Youchao,et al."Influences of litter diversity and soil moisture on soil microbial communities in decomposing mixed litter of alpine steppe species".GEODERMA 377(2020):114577.
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