大沽河溶解态无机氮时空分布特征及来源探讨
文献类型：期刊论文
| 作者 | 夏云; 张波涛; 姜德娟
|
| 刊名 | 农业环境科学学报
 |
| 出版日期 | 2020-01-20 |
| 卷号 | 39期号:01页码:182-190 |
| 关键词 | 无机氮 时空特征 影响因素 污染来源 大沽河 |
| ISSN号 | 1672-2043 |
| 其他题名 | Spatiotemporal characteristics and sources of dissolved inorganic nitrogen in the Dagu River, Jiaodong Peninsula,China |
| 产权排序 | (1) 青岛大学化学化工学院 ; (2) 中国科学院海岸带环境过程与生态修复重点实验室中国科学院烟台海岸带研究所 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Rivers discharge large amounts of nitrogen into the oceans, which has caused increasing concern worldwide. The Dagu River is the largest river in the Jiaodong Peninsula, and the estuary has higher inorganic nitrogen and reactive phosphate concentrations than the environmental standard for long period. As such, the estuary is a critical zone to control the land-based sources of pollutants into the ocean.River water and possible pollutant sources were collected three times considering seasonal differences in 2018 and 2019 to determine the dissolved inorganic nitrogen(DIN)concentration. The spatiotemporal variation, controlling factors, and possible sources of DIN were analyzed using non-parametric test, cluster analysis, and Pearson correlation analysis. The DIN concentration exhibited a significant seasonal difference(P<0.05), which was high in the dry season and low in the wet season. The seasonal variations in DIN were mainly affected by precipitation, temperature, and dissolved oxygen(DO). Spatially, the upstream NO-3-N concentration was higher because of the potential non-point source emissions from fertilizer application and rural domestic wastewater discharge. The NH+4-N concentration was higher in the tributaries than in the main stream, which was attributed to the possible discharge of domestic sewage, industrial wastewater, and livestock wastewater. The DIN concentration was low in the middle and lower reaches owing to the interception and retention by cascade dams. |
| 语种 | 中文 |
| 资助机构 | 国家自然科学基金项目(41671473)~~ |
| 源URL | [http://ir.yic.ac.cn/handle/133337/25192]  |
| 专题 | 烟台海岸带研究所_近岸生态与环境实验室 烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室 |
| 作者单位 | 1.中国科学院海岸带环境过程与生态修复重点实验室中国科学院烟台海岸带研究所 2.青岛大学化学化工学院; |
| 推荐引用方式 GB/T 7714 | 夏云,张波涛,姜德娟. 大沽河溶解态无机氮时空分布特征及来源探讨[J]. 农业环境科学学报,2020,39(01):182-190. |
| APA | 夏云,张波涛,&姜德娟.(2020).大沽河溶解态无机氮时空分布特征及来源探讨.农业环境科学学报,39(01),182-190. |
| MLA | 夏云,et al."大沽河溶解态无机氮时空分布特征及来源探讨".农业环境科学学报 39.01(2020):182-190. |
入库方式： OAI收割
来源：烟台海岸带研究所
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