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Responses of soil microbial communities to nutrient limitation in the desert-grassland ecological transition zone

文献类型：期刊论文

作者Xingchang Zhang3; Yanjiang Zhang2; Fang, LC (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China.; Yongxing Cui2,3; Linchuan Fang2; Xiaobin Guo1; XiaWang2,3; Yunqiang Wang4; Pengfei Li2,3
刊名SCIENCE OF THE TOTAL ENVIRONMENT
出版日期2018
卷号642页码:45-55
关键词Ecological Transition Zone Community Function Enzyme 16s Rrna Its Rrna Nutrient Limitation
ISSN号0048-9697
DOI10.1016/j.scitotenv.2018.06.033
文献子类Article
英文摘要Soil microorganisms are crucial to indicate ecosystem functions of terrestrial ecosystems. However, the responses of microbial communities to soil nutrient limitation in desert-grassland are still poorly understood. Hence, we investigated soil microbial community structures and metabolic characteristics in a desert-grassland ecological transition zone from the northern Loess Plateau, China, and explored the association of microbial communities with nutrient limitation via high-throughput sequencing.Threshold elemental ratios (TER) indicated that the microbial communities were strongly limited by nitrogen (N) under A. ordosica and P. tabuliformis communities. The phosphorus (P) limitation of microbial communities was observed in the aeolian sandy soil. The results imply that soil microbial communities had strong nutrient competition for N and P with aboveground vegetation in arid and oligotrophic ecosystems. The LEfSe and linear regression analysis revealed that the microbial taxa of Micrococcales, Micrococcaceae and Herpotrichiellaceae were significantly correlated with microbial N limitation. The Thermoleophilia taxa were significantly correlated with microbial P limitation. These biomarkers related to microbial nutrient limitation could be considered as the key microbial taxa to shape microbial communities and functions. Furthermore. N form had different effects on microbial communities, which NH4+-N strongly affected bacterial communities, whereas NO3--N had a significant influence on fungal communities. The different responses indicate that soil microorganisms had corresponding nutrient preferences for bacterial and fungal communities, which might alleviate the nutrient limitations and environmental stress. This study provided important insights on microbial community structures linking to community functions and on the mechanisms governing microbial N and P limitation in arid land ecosystems. (C) 2018 Elsevier B.V. All rights reserved.
学科主题Environmental Sciences & Ecology
出版地PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
语种英语
WOS记录号WOS:000439405600005
出版者ELSEVIER SCIENCE BV
资助机构National Natural Science Foundation of China [41571314, 41201226] ; National Natural Science Foundation of China [41571314, 41201226] ; CAS "Light of West China" Program [XAB2016A03] ; CAS "Light of West China" Program [XAB2016A03] ; National Natural Science Foundation of China [41571314, 41201226] ; National Natural Science Foundation of China [41571314, 41201226] ; CAS "Light of West China" Program [XAB2016A03] ; CAS "Light of West China" Program [XAB2016A03]
源URL[http://ir.iswc.ac.cn/handle/361005/8171]  
专题水保所科研产出--SCI_2018--SCI
通讯作者Fang, LC (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China.
作者单位1.Govt Newfoundland & Labrador, Dept Fisheries & Land Resources, Agr Prod & Res Div, Corner Brook, NF A2H 6J8, Canada
2.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
3.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
4.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Shaanxi, Peoples R China
推荐引用方式
GB/T 7714		 Xingchang Zhang,Yanjiang Zhang,Fang, LC ,et al. Responses of soil microbial communities to nutrient limitation in the desert-grassland ecological transition zone[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2018,642:45-55.
APA Xingchang Zhang.,Yanjiang Zhang.,Fang, LC .,Yongxing Cui.,Linchuan Fang.,...&Pengfei Li.(2018).Responses of soil microbial communities to nutrient limitation in the desert-grassland ecological transition zone.SCIENCE OF THE TOTAL ENVIRONMENT,642,45-55.
MLA Xingchang Zhang,et al."Responses of soil microbial communities to nutrient limitation in the desert-grassland ecological transition zone".SCIENCE OF THE TOTAL ENVIRONMENT 642(2018):45-55.

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来源：水土保持研究所

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