Soil organic carbon and soil structure are driving microbial abundance and community composition across the arid and semi-arid grasslands in northern China
文献类型：期刊论文
| 作者 | Hao, Zhipeng
|
| 刊名 | SOIL BIOLOGY & BIOCHEMISTRY
 |
| 出版日期 | 2014 |
| 卷号 | 77期号:1页码:51-57 |
| ISSN号 | 0038-0717 |
| 关键词 | Microbial biogeography PLFA Soil organic carbon Mean annual temperature Arid and semi-arid grasslands |
| 中文摘要 | Microbial biogeography through the study of the assembly rules of microbes has the potential to yield ecological information that is generalizable for a wide range of microorganisms. Here we performed a large-scale field investigation of the distribution patterns of microbes across the arid and semi-arid grassland ecosystems covering an area of 690,000 km(2) in northern China. Soil microbial abundance and community composition were examined through quantifying microbial phospholipid fatty acids (PLFAs) at fifty sampling sites along environmental gradients. A multi-model inference analysis identified soil organic carbon (SOC) as a key driving factor for microbial biomass and quantified its effect. Structural equation models (SEM) were further fitted to the data to provide a better mechanistic resolution of direct and indirect pathways that connected PLFAs and environmental variables. The SEM analysis also supported that SOC was the main positive predictor of microbial biomass, while MAT served as the main negative factor via an indirect pathway. To visualize complex relationships between microbial community and environmental variables we engaged in a redundancy analysis. The result showed that PLFA profiles could be largely explained by the soil variables including soil structure (PSD) and pH. Overall, our report through the analysis of an unprecedented amount of primary data yields unique insights into the relative importance of abiotic factors in shaping microbial communities at large scales. (C) 2014 Elsevier Ltd. All rights reserved. |
| WOS记录号 | WOS:000341556600006 |
| 公开日期 | 2015-03-23 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/9229]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Hao, Zhipeng. Soil organic carbon and soil structure are driving microbial abundance and community composition across the arid and semi-arid grasslands in northern China[J]. SOIL BIOLOGY & BIOCHEMISTRY,2014,77(1):51-57. |
| APA | Hao, Zhipeng.(2014).Soil organic carbon and soil structure are driving microbial abundance and community composition across the arid and semi-arid grasslands in northern China.SOIL BIOLOGY & BIOCHEMISTRY,77(1),51-57. |
| MLA | Hao, Zhipeng."Soil organic carbon and soil structure are driving microbial abundance and community composition across the arid and semi-arid grasslands in northern China".SOIL BIOLOGY & BIOCHEMISTRY 77.1(2014):51-57. |
入库方式： OAI收割
来源：生态环境研究中心
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