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Influences of litter diversity and soil moisture on soil microbial communities in decomposing mixed litter of alpine steppe species

文献类型：期刊论文

作者Chen, Youchao1,2,4; Ma, Shuqin3; Jiang, Hongmao4; Hu, Yang4; Lu, Xuyang4
刊名GEODERMA
出版日期2020-11-01
卷号377页码:114577
ISSN号0016-7061
关键词Northern Tibet Alpine steppe Litter diversity Soil microbial community Climate change
DOI10.1016/j.geoderma.2020.114577
产权排序2
文献子类Article
英文摘要Many 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.
电子版国际标准刊号1872-6259
WOS关键词PLANT DIVERSITY ; MASS-LOSS ; CARBON ; BIOMASS ; RESPONSES ; NITROGEN ; DYNAMICS ; MIXTURE ; STOICHIOMETRY ; PRECIPITATION
资助项目National 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
WOS研究方向Agriculture
语种英语
出版者ELSEVIER
WOS记录号WOS:000560363900012
资助机构National 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
源URL[http://ir.imde.ac.cn/handle/131551/35474]  
专题成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
通讯作者Lu, Xuyang
作者单位1.Chinese Acad Sci, Ctr Plant Ecol, Core Bot Gardens, Wuhan 430074, Peoples R China;
2.Chinese Acad Sci, Key Lab Aquat Bot & Watershed Ecol, Wuhan Bot Garden, Wuhan 430074, Hubei, Peoples R China;
3.Henan Normal Univ, Coll Tourism, Xinxiang 453007, Henan, Peoples R China
4.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China;
推荐引用方式
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.

入库方式： OAI收割

来源：成都山地灾害与环境研究所

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