Nitrogen removal in the sediments of the Pearl River Estuary, China: Evidence from the distribution and forms of nitrogen in the sediment cores
文献类型：期刊论文
| 作者 | Guan, Fengjie; Hong, Yiguo; Wu, Jiapeng1; Yue, Weizhong1; Long, Aimin1 |
| 刊名 | MARINE POLLUTION BULLETIN
 |
| 出版日期 | 2019 |
| 卷号 | 138页码:115 |
| ISSN号 | 0025-326X |
| 关键词 | Nitrogen species Distribution Nitrogen loss Sediment core Pearl River Estuary |
| DOI | 10.1016/j.marpolbul.2018.11.040 |
| 英文摘要 | In this study, the spatial distribution and forms of nitrogen in sediment cores collected from the Pearl River Estuary were analyzed. Exchangeable nitrogen (N-ex) comprised only a small proportion of total nitrogen (N-tot), with a mean of 3.54% in the sediment cores. NH4+ was the main form of N-ex. No obvious change was observed in the vertical content of fixed ammonia (N-fix) in the sediments, and the mean N-fix in all five sediment cores was 141.23 mg.kg(-1). The organic nitrogen (N-org), strongly related to organic carbon (C-org), was the main form in N-tot. The dissolved inorganic nitrogen in sediment pore water was much lower than that in estuarine water and no significant variation was observed from upstream to downstream. Our results indicated that most nitrogen deposited on surface sediments from overlying water was rapidly removed by a series of microbial processes, reducing the extent of nitrogen returning to overlying waters. |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/17786]  |
| 专题 | 南海海洋研究所_热带海洋环境国家重点实验室(LTO) |
| 作者单位 | 1.Guangzhou Univ, Sch Environm Sci & Engn, Guangzhou 510006, Guangdong, Peoples R China 2.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog LTO, Guangzhou 510301, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guan, Fengjie,Hong, Yiguo,Wu, Jiapeng,et al. Nitrogen removal in the sediments of the Pearl River Estuary, China: Evidence from the distribution and forms of nitrogen in the sediment cores[J]. MARINE POLLUTION BULLETIN,2019,138:115, 124. |
| APA | Guan, Fengjie,Hong, Yiguo,Wu, Jiapeng,Yue, Weizhong,&Long, Aimin.(2019).Nitrogen removal in the sediments of the Pearl River Estuary, China: Evidence from the distribution and forms of nitrogen in the sediment cores.MARINE POLLUTION BULLETIN,138,115. |
| MLA | Guan, Fengjie,et al."Nitrogen removal in the sediments of the Pearl River Estuary, China: Evidence from the distribution and forms of nitrogen in the sediment cores".MARINE POLLUTION BULLETIN 138(2019):115. |
入库方式： OAI收割
来源：南海海洋研究所
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