Modification of the composition of dissolved nitrogen forms, nitrogen transformation processes, and diversity of bacterial communities by freeze-thaw events in temperate soils
文献类型：期刊论文
| 作者 | Jiang, Nan1; Juan, Yinghua2; Tian, Lulu3; Chen, Xiaodong1; Sun, Wentao2; Chen, Lijun1 |
| 刊名 | PEDOBIOLOGIA
 |
| 出版日期 | 2018-11-01 |
| 卷号 | 71页码:41-49 |
| 关键词 | Dissolved nitrogen Nitrogen transformation processes Bacterial community Freeze-thaw amplitudes Correlations Procrustean residuals |
| ISSN号 | 0031-4056 |
| DOI | 10.1016/j.pedobi.2018.08.004 |
| 英文摘要 | Freeze-thaw (FT) events can influence the soil nitrogen (N) availability, although their effect on the diversity of bacterial communities during these processes remains uncertain. To test our hypothesis that close relationships exist between dissolved N pools (including NO3-, NH4+, NO3- + NH4+, and dissolved organic N [DON]), N transformation processes (including N mineralization, N immobilization, nitrification, and denitrification), and bacterial communities in response to FT events, we varied the temperature amplitude of these events by using freezing temperatures of -15 degrees C, - 9 degrees C, and - 3 degrees C and thawing temperatures of 2 degrees C and 5 degrees C in microcosms incubated in a temperate agricultural soil. All the pools of total dissolved inorganic N (DIN: i.e., NO3- + NH4+) decreased in concentration as the amplitude of freezing and thawing temperatures increased, whereas the opposite trend was observed for dissolved organic N (DON). Changes in the concentration of all the dissolved N forms examined were highly linearly correlated with N transformation processes. Partial correlation networks highlighted the transformation between the dissolved N forms during N mineralization and the direct immobilization of either NH4+ or DON by microorganisms in response to FT events. In addition, the total dissolved N content was primarily driven by the DON pool, thus suggesting a primary role for protease activity in response to FT. The Mental and Procrustean tests indicated that the N pools examined and the transformation processes were significantly correlated with bacterial community diversity. This linkage could be significantly weakened by warmer freezing temperatures, in which the orders Cytophagales and Sphingobacteriales may play an important role. |
| 资助项目 | Special Fund for Agro-scientific Research in the Public Interest[201503118-08] ; National Natural Science Foundation of China[41301253] ; National Natural Science Foundation of China[41471217] ; Cultivation Plan for Youth Agricultural Science and Technology Innovative Talents of Liaoning Province[2014018] |
| WOS研究方向 | Environmental Sciences & Ecology ; Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:000449825600005 |
| 出版者 | ELSEVIER GMBH, URBAN & FISCHER VERLAG |
| 源URL | [http://210.72.129.5/handle/321005/123723]  |
| 专题 | 中国科学院沈阳应用生态研究所 |
| 通讯作者 | Sun, Wentao; Chen, Lijun |
| 作者单位 | 1.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Liaoning, Peoples R China 2.Liaoning Acad Agr Sci, Inst Plant Nutr & Environm Resources, Shenyang 110161, Liaoning, Peoples R China 3.Shenyang Agr Univ, Dept Soil & Environm, Shenyang 110866, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang, Nan,Juan, Yinghua,Tian, Lulu,et al. Modification of the composition of dissolved nitrogen forms, nitrogen transformation processes, and diversity of bacterial communities by freeze-thaw events in temperate soils[J]. PEDOBIOLOGIA,2018,71:41-49. |
| APA | Jiang, Nan,Juan, Yinghua,Tian, Lulu,Chen, Xiaodong,Sun, Wentao,&Chen, Lijun.(2018).Modification of the composition of dissolved nitrogen forms, nitrogen transformation processes, and diversity of bacterial communities by freeze-thaw events in temperate soils.PEDOBIOLOGIA,71,41-49. |
| MLA | Jiang, Nan,et al."Modification of the composition of dissolved nitrogen forms, nitrogen transformation processes, and diversity of bacterial communities by freeze-thaw events in temperate soils".PEDOBIOLOGIA 71(2018):41-49. |
入库方式： OAI收割
来源：沈阳应用生态研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。