Do warming-induced changes in quantity and stoichiometry of root exudation promote soil N transformations via stimulation of soil nitrifiers,denitrifiers and ammonifiers?
文献类型：期刊论文
| 作者 | Zhang, Ziliang1,3; Qiao, Mingfeng1,3; Li, Dandan1,2; Yin, Huajun1; Liu, Qing1 |
| 刊名 | EUROPEAN JOURNAL OF SOIL BIOLOGY
 |
| 出版日期 | 2016 |
| 卷号 | 74页码:60-68 |
| 关键词 | Root exudation Picea asperata Soil N transformations Bacteria Warming |
| ISSN号 | 1164-5563 |
| DOI | 10.1016/j.ejsobi.2016.03.007 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Despite the recognized importance of root exudation to soil biogeochemical processes and soil function in forest ecosystems, few studies have investigated the impact of quantity and stoichiometry of root exudation on soil nitrogen (N) transformations. In addition, the potential mechanism of how climate warming influences soil N cycling via root-soil interactions remains unclear. We performed an experiment in which in situ root exudates were collected from Picea asperata seedling to examine the response of root carbon (C) & N exudation rates and the C: N ratio stoichiometry along with the soil N transformation rates to warming using infrared heaters in the Eastern Tibetan Plateau. The results showed that warming enhanced root C exudation rates (ug C g(-1) root biomass h(-1)), with higher C: N ratio stoichiometry simultaneously. Experimental warming also significantly increased the soil net mineralization rates, net nitrification rates, and denitrification rates. Then, we conducted an in vitro experiment in which three bacterial strains (Bacillus subtilis, Nitrobacter hamburgensis, and Brachymonas denitrificans) representing ammonifiers, nitrifiers, and denitrifiers, respectively, were cultured with exudates as the culture media. The results indicated that root exudates collected in warmed plots significantly stimulated the growth of the three soil N transformation bacteria, compared with the treatments in control plots. Collectively, our results, to some degree, evidence a linkage that climate warming-induced changes in C fluxes and C: N ratio stoichiometry of root exudation stimulated the growth and reproduction of soil N transformation bacteria, consequently accelerating the soil organic matter decomposition and soil N transformations. (C) 2016 Elsevier Masson SAS. All rights reserved. |
| 学科主题 | Environment/ecology |
| URL标识 | 查看原文 |
| WOS关键词 | EASTERN TIBETAN PLATEAU ; ORGANIC-MATTER DECOMPOSITION ; CLIMATE-CHANGE ; MICROBIAL COMMUNITIES ; NITROGEN TRANSFORMATIONS ; BACTERIAL COMMUNITIES ; ALPINE MEADOW ; CARBON MINERALIZATION ; CONIFEROUS FOREST ; TALLGRASS PRAIRIE |
| WOS研究方向 | Environmental Sciences & Ecology ; Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:000376052700009 |
| 出版者 | ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER |
| 源URL | [http://210.75.237.14/handle/351003/29904]  |
| 专题 | 生物多样性与生态系统服务领域_生态系统恢复与生物多样性保育四川省重点实验室 成都生物研究所_生态研究 生物多样性与生态系统服务领域_中国科学院山地生态恢复与生物资源利用重点实验室 生物多样性与生态系统服务领域_生态研究 |
| 作者单位 | 1.Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization & Ecological Restoration Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China; 2.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Jiangsu, Peoples R China; 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Ziliang,Qiao, Mingfeng,Li, Dandan,et al. Do warming-induced changes in quantity and stoichiometry of root exudation promote soil N transformations via stimulation of soil nitrifiers,denitrifiers and ammonifiers?[J]. EUROPEAN JOURNAL OF SOIL BIOLOGY,2016,74:60-68. |
| APA | Zhang, Ziliang,Qiao, Mingfeng,Li, Dandan,Yin, Huajun,&Liu, Qing.(2016).Do warming-induced changes in quantity and stoichiometry of root exudation promote soil N transformations via stimulation of soil nitrifiers,denitrifiers and ammonifiers?.EUROPEAN JOURNAL OF SOIL BIOLOGY,74,60-68. |
| MLA | Zhang, Ziliang,et al."Do warming-induced changes in quantity and stoichiometry of root exudation promote soil N transformations via stimulation of soil nitrifiers,denitrifiers and ammonifiers?".EUROPEAN JOURNAL OF SOIL BIOLOGY 74(2016):60-68. |
入库方式： OAI收割
来源：成都生物研究所
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