| Phosphorus fractions in sediment profiles and their potential contributions to eutrophication in Dianchi Lake | |
| Gao, L; Zhou, JMM; Yang, H; Chen, J | |
| 刊名 | ENVIRONMENTAL GEOLOGY
 |
| 2005-10-01 | |
| 卷号 | 48期号:7页码:835-844 |
| 关键词 | sediment phosphorus forms vertical distribution Dianchi Lake China |
| ISSN号 | 0943-0105 |
| DOI | 10.1007/s00254-005-0005-3 |
| 通讯作者 | Zhou, JMM() |
| 英文摘要 | Dianchi Lake is a eutrophic lake in southwestern China. Sediment and the bottom water samples were taken from six sites in the east, west, south, north and center of the lake, respectively, in December 2002. Total phosphorus (TP) concentrations in sediments were high and reached a maximum value of 6.66 g/kg. There was a soluble reactive phosphorus (SRP) concentration gradient at the sediment-water interface. In the present study, sediment P was divided into loosely adsorbed P (NH4Cl-P), redox-sensitive P (BD-P), metal oxides bound P (NaOH-P), calcium bound P (HCl-P), and organic P (Org-P). At three of the six sites selected, the concentrations of different P forms in sediments followed the order: NaOH-P, Org-P > HCl-P > BDP > NH4Cl-P in the profile, and in the southern lake the order was HCl-P > NaOH-P, Org-P > BDP > NH4Cl-P in the top 15 cm layers of the sediments. The sediment profiles showed that different forms of P had an increasing trend upward toward the sediment surface. There is a considerable potential for release from the sediment into the overlying water and sediment P could be the dominant factor determining the trophic status of the lake if the external load is reduced. |
| 收录类别 | SCI |
| WOS关键词 | MARINE-SEDIMENTS ; FORMS ; DIAGENESIS ; RESERVOIRS ; BINDING ; CHINA |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Water Resources |
| WOS类目 | Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources |
| 语种 | 英语 |
| 出版者 | SPRINGER |
| WOS记录号 | WOS:000233303700002 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2558515 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Zhou, JMM |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Soil & Sustainable Agr, Inst Soil Sci, Nanjing 210008, Peoples R China 2.Yantai Univ, Ocean Sch, Shandong 264005, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gao, L,Zhou, JMM,Yang, H,et al. Phosphorus fractions in sediment profiles and their potential contributions to eutrophication in Dianchi Lake[J]. ENVIRONMENTAL GEOLOGY,2005,48(7):835-844. |
| APA | Gao, L,Zhou, JMM,Yang, H,&Chen, J.(2005).Phosphorus fractions in sediment profiles and their potential contributions to eutrophication in Dianchi Lake.ENVIRONMENTAL GEOLOGY,48(7),835-844. |
| MLA | Gao, L,et al."Phosphorus fractions in sediment profiles and their potential contributions to eutrophication in Dianchi Lake".ENVIRONMENTAL GEOLOGY 48.7(2005):835-844. |
| 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