| Distribution of selenium and its relationship to the eco-environment in bohai bay seawater | |
| Duan, Liqin1,2; Song, Jinming1; Li, Xuegang1; Yuan, Huamao1; Xu, Sisi1,2 | |
| 刊名 | Marine chemistry
 |
| 2010-08-20 | |
| 卷号 | 121期号:1-4页码:87-99 |
| 关键词 | Selenium speciation Distribution Environmental parameters Bohai bay seawater |
| ISSN号 | 0304-4203 |
| DOI | 10.1016/j.marchem.2010.03.007 |
| 通讯作者 | Song, jinming(jmsong@ms.qdio.ac.cn) |
| 英文摘要 | We determined the selenite (se(iv)) and selenate (se(vi)) concentrations in the surface and bottom waters of bohai bay to understand the behavior of selenium in this area. the average concentrations of selenite and selenate were 0.72 nm and 0.36 nm, respectively. the surface concentration of selenite and selenate decreased from the western bay to the bay mouth, with the highest value near the haihe estuary. the bottom concentration of selenite and selenate displayed a similar distribution as the surface concentration. the selenium distribution was mainly controlled by environmental factors, riverine discharges and biological activities. based on the data in this study, a preliminary estimate of the selenium budget via riverine input has been established. according to our estimate, about 7.18 x 10(7) mmol/yr of selenium reaches the bohai bay via rivers. selenium showed significant positive correlations with dissolved inorganic nitrogen (din). phosphate and silicates, reflecting its strong nutrient-type behavior. the selenium concentration also correlated well with the chlorophyll a concentration and phytoplankton biomass, possibly implying that selenium plays a key role in regulating the phytoplankton productivity and that phytoplankton dynamics also affect the selenium inventory in bohai bay. furthermore, the selenium concentration in each site was lower than the "no-effect" value of selenium and seemed to be required for the normal growth and development of phytoplankton, but it may have adverse effects for higher trophic levels due to the bioaccumulation of selenium. (c) 2010 elsevier b.v. all rights reserved. |
| WOS关键词 | DIATOM THALASSIOSIRA-PSEUDONANA ; SAN-FRANCISCO BAY ; DISSOLVED SELENIUM ; ADSORPTION-DESORPTION ; TEMPORAL VARIABILITY ; ATLANTIC-OCEAN ; TRACE-METALS ; NEW-ZEALAND ; SEA ; WATER |
| WOS研究方向 | Chemistry ; Oceanography |
| WOS类目 | Chemistry, Multidisciplinary ; Oceanography |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000286559100009 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2408997 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Song, Jinming |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Duan, Liqin,Song, Jinming,Li, Xuegang,et al. Distribution of selenium and its relationship to the eco-environment in bohai bay seawater[J]. Marine chemistry,2010,121(1-4):87-99. |
| APA | Duan, Liqin,Song, Jinming,Li, Xuegang,Yuan, Huamao,&Xu, Sisi.(2010).Distribution of selenium and its relationship to the eco-environment in bohai bay seawater.Marine chemistry,121(1-4),87-99. |
| MLA | Duan, Liqin,et al."Distribution of selenium and its relationship to the eco-environment in bohai bay seawater".Marine chemistry 121.1-4(2010):87-99. |
| 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