Increased precipitation accelerates soil organic matter turnover associated with microbial community composition in topsoil of alpine grassland on the eastern Tibetan Plateau
文献类型：期刊论文
| 作者 | Han, Conghai1,2; Wang, Zongli3; Si, Guicai4; Lei, Tianzhu4; Yuan, Yanli1; Zhang, Gengxin1 |
| 刊名 | CANADIAN JOURNAL OF MICROBIOLOGY
 |
| 出版日期 | 2017-10-01 |
| 卷号 | 63期号:10页码:811-821 |
| 关键词 | alpine grassland soil profile SOM turnover precipitation microbial community |
| ISSN号 | 0008-4166 |
| DOI | 10.1139/cjm-2017-0157 |
| 文献子类 | Article |
| 英文摘要 | Large quantities of carbon are stored in alpine grassland of the Tibetan Plateau, which is extremely sensitive to climate change. However, it remains unclear whether soil organic matter (SOM) in different layers responds to climate change analogously, and whether microbial communities play vital roles in SOM turnover of topsoil. In this study we measured and collected SOM turnover by the C-14 method in alpine grassland to test climatic effects on SOM turnover in soil profiles. Edaphic properties and microbial communities in the northwestern Qinghai Lake were investigated to explore microbial influence on SOM turnover. SOM turnover in surface soil (0-10 cm) was more sensitive to precipitation than that in subsurface layers (10-40 cm). Precipitation also imposed stronger effects on the composition of microbial communities in the surface layer than that in deeper soil. At the 5-10 cm depth, the SOM turnover rate was positively associated with the bacteria/fungi biomass ratio and the relative abundance of Acidobacteria, both of which are related to precipitation. Partial correlation analysis suggested that increased precipitation could accelerate the SOM turnover rate in topsoil by structuring soil microbial communities. Conversely, carbon stored in deep soil would be barely affected by climate change. Our results provide valuable insights into the dynamics and storage of SOM in alpine grasslands under future climate scenarios. |
| WOS关键词 | CARBON TURNOVER ; CLIMATE-CHANGE ; LITTER DECOMPOSITION ; LOESS PLATEAU ; CHINA ; TEMPERATURE ; VEGETATION ; MINERALIZATION ; (CO2)-C-14 ; BACTERIAL |
| WOS研究方向 | Biochemistry & Molecular Biology ; Biotechnology & Applied Microbiology ; Immunology ; Microbiology |
| 语种 | 英语 |
| WOS记录号 | WOS:000412174100001 |
| 出版者 | CANADIAN SCIENCE PUBLISHING, NRC RESEARCH PRESS |
| 资助机构 | National Natural Science Foundation of China(31290222 ; Science and Technology Department of China(2013CB956002) ; 41172307 ; 41201236) ; National Natural Science Foundation of China(31290222 ; Science and Technology Department of China(2013CB956002) ; 41172307 ; 41201236) ; National Natural Science Foundation of China(31290222 ; Science and Technology Department of China(2013CB956002) ; 41172307 ; 41201236) ; National Natural Science Foundation of China(31290222 ; Science and Technology Department of China(2013CB956002) ; 41172307 ; 41201236) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/61962]  |
| 专题 | 地质与地球物理研究所_兰州油气中心 |
| 通讯作者 | Zhang, Gengxin |
| 作者单位 | 1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol & Biodivers, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Lanzhou Univ, Key Lab Western Chinas Environm Syst, Lanzhou 730000, Gansu, Peoples R China 4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources, Gansu Prov Key Lab Petr Resources Res, Lanzhou 730000, Gansu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Han, Conghai,Wang, Zongli,Si, Guicai,et al. Increased precipitation accelerates soil organic matter turnover associated with microbial community composition in topsoil of alpine grassland on the eastern Tibetan Plateau[J]. CANADIAN JOURNAL OF MICROBIOLOGY,2017,63(10):811-821. |
| APA | Han, Conghai,Wang, Zongli,Si, Guicai,Lei, Tianzhu,Yuan, Yanli,&Zhang, Gengxin.(2017).Increased precipitation accelerates soil organic matter turnover associated with microbial community composition in topsoil of alpine grassland on the eastern Tibetan Plateau.CANADIAN JOURNAL OF MICROBIOLOGY,63(10),811-821. |
| MLA | Han, Conghai,et al."Increased precipitation accelerates soil organic matter turnover associated with microbial community composition in topsoil of alpine grassland on the eastern Tibetan Plateau".CANADIAN JOURNAL OF MICROBIOLOGY 63.10(2017):811-821. |
入库方式： OAI收割
来源：地质与地球物理研究所
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