Revegetation affects soil denitrifying communities in a riparian ecotone
文献类型：期刊论文
| 作者 | Ye, Chen2; Chen, Chengrong1,3; Du, Ming2; Liu, Wenzhi2; Zhang, Quanfa2 |
| 刊名 | ECOLOGICAL ENGINEERING
 |
| 出版日期 | 2017-06-01 |
| 卷号 | 103页码:256-263 |
| 关键词 | Denitrification Denitrifiers Community composition Abundance Terrestrial-aquatic ecotone |
| ISSN号 | 0925-8574 |
| DOI | 10.1016/j.ecoleng.2017.03.005 |
| 英文摘要 | Denitrification is one of the most important processes in the nitrogen (N) cycle due to its permanently removing excess N from ecosystems into the atmosphere. In practice, revegetation has employed to facilitate the process for preventing nitrogen from terrestrial into aquatic ecosystems, in particular in the terrestrial-aquatic ecotone (i.e., riparian zone). However, how revegetation drives the shift in the denitrifying bacterial community and consequently alters denitrification is still unclear. In this study, we investigated soil denitrifiers in three vegetation types with respective dominant species of trees, shrubs and herbs in the water-level-fluctuate-zone in the Three Gorges Reservoir, China. We hypothesized that revegetation affected the composition of denitrifiers. Results revealed that the functional gene composition in herb samples was well separated from that in tree samples, which was dependent on the interactions between plant traits (i.e., species number and diversity, root C:N ratio) and environmental factors (i.e., soil temperature and pH). Herb soils has more abundance of nirS and nirK genes and nirS gene diversity due to their higher species number, soil pH, soil organic C, TN, soil C: N ratio and root C: N ratio compared with the shrub and tree soils. Vegetation types did not significantly affect soil denitrification rate, which could be largely explained by the combined effects of plant attributes (species number, root organic C and root N), and soil pH. Our results have demonstrated that herb plantations could increase the abundance of soil denitrifiers through altering both the quantity and quality of SOC and soil pH. (C) 2017 Elsevier B.V. All rights reserved. |
| 资助项目 | National Natural Science Foundation of China[31300441] ; National Natural Science Foundation of China[31570521] ; Strategic Priority Research Program B of the Chinese Academy of Sciences[XDB15010200] ; Executive Office of the State Council Three Gorges Construction Committee[SX2013-022] ; Hundred Talent Program" of the Chinese Academy of Sciences[R53A362Z10] |
| WOS研究方向 | Environmental Sciences & Ecology ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000402830200028 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/1362]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Zhang, Quanfa |
| 作者单位 | 1.Griffith Univ, Griffith Sch Environm, Nathan, Qld 4111, Australia 2.Chinese Acad Sci, Key Lab Aquat Bot & Watershed Ecol, Wuhan Bot Garden, Wuhan 430074, Peoples R China 3.Griffith Univ, Environm Futures Res Inst, Nathan, Qld 4111, Australia |
| 推荐引用方式 GB/T 7714 | Ye, Chen,Chen, Chengrong,Du, Ming,et al. Revegetation affects soil denitrifying communities in a riparian ecotone[J]. ECOLOGICAL ENGINEERING,2017,103:256-263. |
| APA | Ye, Chen,Chen, Chengrong,Du, Ming,Liu, Wenzhi,&Zhang, Quanfa.(2017).Revegetation affects soil denitrifying communities in a riparian ecotone.ECOLOGICAL ENGINEERING,103,256-263. |
| MLA | Ye, Chen,et al."Revegetation affects soil denitrifying communities in a riparian ecotone".ECOLOGICAL ENGINEERING 103(2017):256-263. |
入库方式： OAI收割
来源：武汉植物园
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