Responses of soil microbial communities to nutrient limitation in thedesert-grassland ecological transition zone
文献类型：期刊论文
| 作者 | Fang,Linchuan; Zhang,XC(Zhang,Xingchang)3; Zhang,YJ(Zhang,Yunjiang)4; Li,PF(Li,Pengfei)3,4; Wang,YQ(Wang,Yunqiang)1; Wang,X(Wang,Xia)3,4; Guo,XB(Guo,Xiaobin)2; Fang,LC(Fang,Linchuan)4; Cui,YX(Cui,Yongxing)3,4 |
| 刊名 | Science of the Total Environment
 |
| 出版日期 | 2018-06-18 |
| 卷号 | 642期号:2018页码:45-55 |
| 关键词 | Ecological Transition Zone Community Function Enzyme 16s Rrna Its Rrna Nutrient Limitation |
| DOI | 10.1016/j.scitotenv.2018.06.033 |
| 文献子类 | 期刊论文 |
| 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. |
| 项目编号 | 41571314 ; 41201226 ; XAB2016A03 |
| 语种 | 英语 |
| 资助机构 | National Natural ScienceFoundation of China ; National Natural ScienceFoundation of China ; CAS “Light of WestChina” Program ; CAS “Light of WestChina” Program |
| 源URL | [http://ir.ieecas.cn/handle/361006/5354]  |
| 专题 | 地球环境研究所_生态环境研究室 |
| 通讯作者 | Fang,Linchuan |
| 作者单位 | 1.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, Shaanxi 710061, PR China 2.Agriculture Production and Research Division, Department of Fisheries and Land Resources, Government of Newfoundland and Labrador, Corner Brook, NL A2H 6J8, Canada 3.State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling712100, PR China 4.State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling 712100, PR China |
| 推荐引用方式 GB/T 7714 | Fang,Linchuan,Zhang,XC,Zhang,YJ,et al. Responses of soil microbial communities to nutrient limitation in thedesert-grassland ecological transition zone[J]. Science of the Total Environment,2018,642(2018):45-55. |
| APA | Fang,Linchuan.,Zhang,XC.,Zhang,YJ.,Li,PF.,Wang,YQ.,...&Cui,YX.(2018).Responses of soil microbial communities to nutrient limitation in thedesert-grassland ecological transition zone.Science of the Total Environment,642(2018),45-55. |
| MLA | Fang,Linchuan,et al."Responses of soil microbial communities to nutrient limitation in thedesert-grassland ecological transition zone".Science of the Total Environment 642.2018(2018):45-55. |
入库方式： OAI收割
来源：地球环境研究所
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