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, Hongmao1; Hu, Yang1; Lu, Xuyang1 |
刊名 | GEODERMA |
出版日期 | 2020-11-01 |
卷号 | 377页码:9 |
ISSN号 | 0016-7061 |
关键词 | Northern Tibet Alpine steppe Litter diversity Soil microbial community Climate change |
DOI | 10.1016/j.geoderma.2020.114577 |
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. |
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 |
源URL | [http://202.127.146.157/handle/2RYDP1HH/15621] |
专题 | 中国科学院武汉植物园 |
通讯作者 | Lu, Xuyang |
作者单位 | 1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China 2.Chinese Acad Sci, Ctr Plant Ecol, Core Bot Gardens, Wuhan 430074, Peoples R China 3.Henan Normal Univ, Coll Tourism, Xinxiang 453007, Henan, Peoples R China 4.Chinese Acad Sci, Key Lab Aquat Bot & Watershed Ecol, Wuhan Bot Garden, Wuhan 430074, Hubei, 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,2020,377:9. |
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,377,9. |
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):9. |
入库方式: OAI收割
来源:武汉植物园
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