Phosphorus fractions and alkaline phosphatase activity in sediments of a large eutrophic Chinese lake (Lake Taihu)
文献类型：期刊论文
| 作者 | Zhou, Yiyong1; Song, Chunlei1; Cao, Xiuyun1; Li, Jianqiu1; Chen, Guoyuan1,2; Xia, Zhuoying1,2; Jiang, Pinghong1,2 |
| 刊名 | HYDROBIOLOGIA
 |
| 出版日期 | 2008-03-01 |
| 卷号 | 599页码:119-125 |
| 关键词 | P fractionation alkaline phosphatase kinetics distributions sediments interstitial water dredging lake eutrophication |
| ISSN号 | 0018-8158 |
| 通讯作者 | Zhou, YY, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China |
| 中文摘要 | Spatial, vertical, and seasonal variations in phosphorus fractions and in alkaline phosphatase activity (APA) were investigated in sediments in a large-shallow eutrophic Chinese lake (Lake Taihu) in 2003-2004. The phosphorus content was highest in the most seriously polluted lake area. Iron-bound phosphorus (Fe(OOH)-P) dominated (47% on average) among the phosphorus fractions determined according to Golterman (Hydrobiologia 335:87-95, 1996). Notably, organically-bound P comprised a further significant additional portion (acid-soluble + hot NaOH-extractable organic P = 25%), which was highest at the most polluted sites. The Fe(OOH)-P content was the lowest in spring (April, 2004), suggesting that degradation of organic matter led to the release of iron-bound phosphates. Sediment APA showed a significant positive relationship with both organically-bound P and Fe(OOH)-P. Consequently, organically-bound P is an important portion of the sediment phosphorus in Lake Taihu. It is mainly derived from freshly-settled autochthonous particles and from external discharges. Organically-bound P induces APA and may lead to the release of bioavailable phosphates from the organic sediments, thereby accelerating lake eutrophication. |
| 英文摘要 | Spatial, vertical, and seasonal variations in phosphorus fractions and in alkaline phosphatase activity (APA) were investigated in sediments in a large-shallow eutrophic Chinese lake (Lake Taihu) in 2003-2004. The phosphorus content was highest in the most seriously polluted lake area. Iron-bound phosphorus (Fe(OOH)-P) dominated (47% on average) among the phosphorus fractions determined according to Golterman (Hydrobiologia 335:87-95, 1996). Notably, organically-bound P comprised a further significant additional portion (acid-soluble + hot NaOH-extractable organic P = 25%), which was highest at the most polluted sites. The Fe(OOH)-P content was the lowest in spring (April, 2004), suggesting that degradation of organic matter led to the release of iron-bound phosphates. Sediment APA showed a significant positive relationship with both organically-bound P and Fe(OOH)-P. Consequently, organically-bound P is an important portion of the sediment phosphorus in Lake Taihu. It is mainly derived from freshly-settled autochthonous particles and from external discharges. Organically-bound P induces APA and may lead to the release of bioavailable phosphates from the organic sediments, thereby accelerating lake eutrophication. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 学科主题 | Marine & Freshwater Biology |
| 类目[WOS] | Marine & Freshwater Biology |
| 研究领域[WOS] | Marine & Freshwater Biology |
| 关键词[WOS] | KINETICS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000252890800015 |
| 公开日期 | 2010-10-13 |
| 源URL | [http://ir.ihb.ac.cn/handle/152342/8272]  |
| 专题 | 水生生物研究所_中科院水生所知识产出（2009年前）_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Yiyong,Song, Chunlei,Cao, Xiuyun,et al. Phosphorus fractions and alkaline phosphatase activity in sediments of a large eutrophic Chinese lake (Lake Taihu)[J]. HYDROBIOLOGIA,2008,599:119-125. |
| APA | Zhou, Yiyong.,Song, Chunlei.,Cao, Xiuyun.,Li, Jianqiu.,Chen, Guoyuan.,...&Jiang, Pinghong.(2008).Phosphorus fractions and alkaline phosphatase activity in sediments of a large eutrophic Chinese lake (Lake Taihu).HYDROBIOLOGIA,599,119-125. |
| MLA | Zhou, Yiyong,et al."Phosphorus fractions and alkaline phosphatase activity in sediments of a large eutrophic Chinese lake (Lake Taihu)".HYDROBIOLOGIA 599(2008):119-125. |
入库方式： OAI收割
来源：水生生物研究所
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