Responses of nitrogen transformation and microbial community composition to nitrogen enrichment patch
文献类型：期刊论文
| 作者 | Wang, Shu-Guang1; Hou, Yan-Lin2; Guo, Wei3 |
| 刊名 | Pedobiologia
 |
| 出版日期 | 2010 |
| 卷号 | 54期号:1页码:9-17 |
| 关键词 | Nitrogen enrichment patch Urea Microbial community composition Nitrogen transformation Phospholipid fatty acids (plfas) Soil layer |
| ISSN号 | 0031-4056 |
| DOI | 10.1016/j.pedobi.2010.08.002 |
| 通讯作者 | Wang, shu-guang(wangsg@mail.buct.edu.cn) |
| 英文摘要 | Fertilization produces many nutrient patches that have been confirmed to affect root growth. however, it is not clear how nutrient transformation and microbial community composition are affected in an inorganic nutrient patch. in this experiment, a nitrogen enrichment patch was formed by the diffusion of a urea fertilizer layer in a specially-designed container. responses of nitrogen transformation and microbial community composition to the nitrogen enrichment patch were investigated at different incubation times. results showed that nitrogen status and microbial community composition were slightly affected in the control patch (ck patch). in the nitrogen enrichment patch, however, soil ph was significantly increased in most soil layers close to the urea fertilizer layer; no(2)(-)-n was the predominant form of mineral n, and its transformation to no(3)(-)-n was delayed. microbial community composition shifted significantly, especially before day 28 of incubation. principal components analysis (pca) of phospholipid fatty acids (plfas) patterns showed that the microbial community presented different sensitivity to high nitrogen concentration. fungi (18:2 omega 6,9) showed the least sensitivity to high concentrations of no(2)(-)-n and no(3)(-)-n. gram-positive bacteria showed the most sensitivity to no(2)(-)-n. gram-negative bacteria (cy17:0, cy19:0, 18:1 omega 9, and 18:1 omega 7) and actinomycetes (10me17:0 and 10me18:0) presented similar responses to no(2)(-)-n and no(3)(-)-n. results of this study indicate that changes in nitrogen transformation and microbial community composition are likely to occur in nitrogen enrichment patches, but the extent of those changes depend on the microbial species and the distance of soil layers from the urea layer. (c) 2010 elsevier gmbh. all rights reserved. |
| WOS关键词 | FOREST SOILS ; FERTILIZATION ; MICROFAUNA ; BIOMASS ; NITRITE ; GROWTH ; CARBON ; PLANTS |
| WOS研究方向 | Environmental Sciences & Ecology ; Agriculture |
| WOS类目 | Ecology ; Soil Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000286572300002 |
| 出版者 | ELSEVIER GMBH, URBAN & FISCHER VERLAG |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2406081 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Wang, Shu-Guang |
| 作者单位 | 1.Beijing Univ Chem Technol, Dept Environm Sci & Engn, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Inner Mongolia Univ, Coll Life Sci, Hohhot 010021, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Shu-Guang,Hou, Yan-Lin,Guo, Wei. Responses of nitrogen transformation and microbial community composition to nitrogen enrichment patch[J]. Pedobiologia,2010,54(1):9-17. |
| APA | Wang, Shu-Guang,Hou, Yan-Lin,&Guo, Wei.(2010).Responses of nitrogen transformation and microbial community composition to nitrogen enrichment patch.Pedobiologia,54(1),9-17. |
| MLA | Wang, Shu-Guang,et al."Responses of nitrogen transformation and microbial community composition to nitrogen enrichment patch".Pedobiologia 54.1(2010):9-17. |
入库方式： iSwitch采集
来源：中国科学院大学
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。