| N2O emissions and nitrogen transformation during windrow composting of dairy manure | |
| Chen, Ruirui; Wang, Yiming; Wang, Wei; Wei, Shiping; Jing, Zhongwang; Lin, Xiangui | |
| 刊名 | JOURNAL OF ENVIRONMENTAL MANAGEMENT
 |
| 2015-09-01 | |
| 卷号 | 160页码:121-127 |
| 关键词 | Windrow composting N2O emissions Pile turning Nitrification Denitrification |
| ISSN号 | 0301-4797 |
| DOI | 10.1016/j.jenvman.2015.06.021 |
| 通讯作者 | Lin, Xiangui(xglin@issas.ac.cn) |
| 英文摘要 | Windrow composting involves piling and regularly turning organic wastes in long rows, being in the succession of static standing periods between two consecutive pile turnings as well as a period of pile turning. N2O emissions and N transformation were investigated during the processes of windrow composting. In contrast to the conventional understanding, we observed that N2O concentrations inside compost materials were significantly higher after pile turning (APT) than before pile turning (BPT). Pile turning triggered a burst of N2O production rather than simple gaseous N2O escape from the stirred compost. Denitrification was the dominant pathway in pile turning because the observed NO2- and NO3- concentrations were significantly lower APT compared to BPT. The sudden exposure of 02 severely inhibited N2O reductase, which can block the transformation of N2O to Ny and thus caused an increase of N2O emission. As the NO2- and NO3- concentrations rose during the following 48 standing hours, nitrification dominated N transformation and did not cause an increase of surface N2O emissions. Thus, pile turning resulted in a dramatic conversion of N transformation and strongly influenced its flux size. It was also found that high NO2- was accumulated in the compost and had a strong correlation with N2O emissions. Practical methods regulating nitrite and the frequency of pile turning would be useful to mitigate N2O emissions in manure composting. (C) 2015 Elsevier Ltd. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | GREENHOUSE-GAS EMISSIONS ; CATTLE FEEDLOT MANURE ; OXIDE EMISSION ; CH4 EMISSIONS ; NITRITE ACCUMULATION ; OXIDIZING BACTERIA ; PIG MANURE ; DENITRIFICATION ; AMMONIA ; NITRIFICATION |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Environmental Sciences |
| 语种 | 英语 |
| 出版者 | ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD |
| WOS记录号 | WOS:000358973300014 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2558358 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Lin, Xiangui |
| 作者单位 | Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Ruirui,Wang, Yiming,Wang, Wei,et al. N2O emissions and nitrogen transformation during windrow composting of dairy manure[J]. JOURNAL OF ENVIRONMENTAL MANAGEMENT,2015,160:121-127. |
| APA | Chen, Ruirui,Wang, Yiming,Wang, Wei,Wei, Shiping,Jing, Zhongwang,&Lin, Xiangui.(2015).N2O emissions and nitrogen transformation during windrow composting of dairy manure.JOURNAL OF ENVIRONMENTAL MANAGEMENT,160,121-127. |
| MLA | Chen, Ruirui,et al."N2O emissions and nitrogen transformation during windrow composting of dairy manure".JOURNAL OF ENVIRONMENTAL MANAGEMENT 160(2015):121-127. |
| 个性服务 |
| 查看访问统计 |
| 相关权益政策 |
| 暂无数据 |
| 收藏/分享 |
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。
修改评论