A nitrogen budget of the Changjiang river catchment
文献类型：期刊论文
| 作者 | Shen, ZL; Liu, Q ; Zhang, SM; Miao, H; Zhang, P
|
| 刊名 | AMBIO
 |
| 出版日期 | 2003-02-01 |
| 卷号 | 32期号:1页码:65-69 |
| 关键词 | Coastal Eutrophication Nutrient Structure World Rivers Phosphorus Pollution Estuaries Waters Cycle Bay |
| ISSN号 | 0044-7447 |
| 文献子类 | Article |
| 英文摘要 | Based on 1997-1998 field investigations in the Changjiang river mouth, rain sampling from the river's upper reaches to the mouth, historical data, and relevant literature, the various sources of Total Nitrogen (TN) and Dissolved Inorganic Nitrogen (DIN) in the Changjiang river catchment and N transport in the Changjiang river mouth were estimated. The export fluxes of various form of were mainly controlled by the river runoff, and the export fluxes of NO3-N, DIN and TN in 1998 (an especially heavy flood year) were 1438 103 tonnes (t) yr(-1) or 795.1 kg km(-2) yr(-1) 1746 10(3) t yr(-1) or 965.4 kg km(-2) yr(-1) and 2849 10(3) t yr(-1) or 1575.3 kg km(-2) yr(-1), respectively. The TN and DIN in the Changjiang river came mainly from precipitation, agricultural nonpoint sources, N lost from fertilizer and soil, and point sources of industrial waste and residential sewage discharge, which were about 56.2% and 62.3%, 15.4% and 18.5%, 17.1% and 14.4%, respectively, of the N outflow at the Changjiang river mouth; maximum transport being in the middle reaches.; Based on 1997-1998 field investigations in the Changjiang river mouth, rain sampling from the river's upper reaches to the mouth, historical data, and relevant literature, the various sources of Total Nitrogen (TN) and Dissolved Inorganic Nitrogen (DIN) in the Changjiang river catchment and N transport in the Changjiang river mouth were estimated. The export fluxes of various form of were mainly controlled by the river runoff, and the export fluxes of NO3-N, DIN and TN in 1998 (an especially heavy flood year) were 1438 103 tonnes (t) yr(-1) or 795.1 kg km(-2) yr(-1) 1746 10(3) t yr(-1) or 965.4 kg km(-2) yr(-1) and 2849 10(3) t yr(-1) or 1575.3 kg km(-2) yr(-1), respectively. The TN and DIN in the Changjiang river came mainly from precipitation, agricultural nonpoint sources, N lost from fertilizer and soil, and point sources of industrial waste and residential sewage discharge, which were about 56.2% and 62.3%, 15.4% and 18.5%, 17.1% and 14.4%, respectively, of the N outflow at the Changjiang river mouth; maximum transport being in the middle reaches. |
| 学科主题 | Engineering, Environmental ; Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000182798600011 |
| 公开日期 | 2010-12-22 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/2793]  |
| 专题 | 海洋研究所_海洋生态与环境科学重点实验室 海洋研究所_实验海洋生物学重点实验室 |
| 作者单位 | Chinese Acad Sci, Key Lab Marine Ecol & Environm Sci, Inst Oceanog, Qingdao 266071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shen, ZL,Liu, Q,Zhang, SM,et al. A nitrogen budget of the Changjiang river catchment[J]. AMBIO,2003,32(1):65-69. |
| APA | Shen, ZL,Liu, Q,Zhang, SM,Miao, H,&Zhang, P.(2003).A nitrogen budget of the Changjiang river catchment.AMBIO,32(1),65-69. |
| MLA | Shen, ZL,et al."A nitrogen budget of the Changjiang river catchment".AMBIO 32.1(2003):65-69. |
入库方式： OAI收割
来源：海洋研究所
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