The effect of organic matter accumulation on phosphorus release in sediment of Chinese shallow lakes
文献类型：期刊论文
| 作者 | Liu, Yunbing1,2; Guo, Yaxin1,2; Song, Chunlei1; Xiao, Wenjuan1,2; Huang, Daizhong1,2; Cao, Xiuyun1; Zhou, Yiyong1 |
| 刊名 | FUNDAMENTAL AND APPLIED LIMNOLOGY
 |
| 出版日期 | 2009 |
| 卷号 | 175期号:2页码:143-150 |
| 关键词 | organic matter alkaline phosphatase phosphorus release sediment anaerobic condition shallow lakes eutrophication |
| ISSN号 | 1863-9135 |
| 通讯作者 | Zhou, YY, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China |
| 中文摘要 | The effects of organic matter in sediment on phosphorus release were studied by field investigations in eight Chinese shallow freshwater lakes with different trophic status and a laboratory experiment. The sediment organic matter content paralleled the trophic status, ranging from 6.1 to 173.0 g kg(-1) (dry weight), with the mean value of 63.1 g kg(-1) (dry weight). It was positively proportional to Soluble reactive phosphorus concentration in the interstitial water in a form of exponential function, but inversely related to the sediment Fe/P ratio. The sediment alkaline phosphatase activity was significantly related not only to the organic matter content (r = 0.829, P < 0.01, n = 120), but also to the soluble reactive phosphorus concentration in interstitial water (r = 0.454, P < 0.01, n = 42). In the laboratory experiment, the addition of organic matter (dry materials of an aquatic macrophyte) into the sediment significantly enhanced alkaline phosphatase activity and soluble reactive phosphorus release. However, in the treatment with organic matter added and aeration, this release was generally prevented in spite of an increase in APA. Hence, sediment organic matter can effectively accelerate phosphorus release by enzymatic hydrolysis and anaerobic desorption. The latter mechanism seems to be more important. |
| 英文摘要 | The effects of organic matter in sediment on phosphorus release were studied by field investigations in eight Chinese shallow freshwater lakes with different trophic status and a laboratory experiment. The sediment organic matter content paralleled the trophic status, ranging from 6.1 to 173.0 g kg(-1) (dry weight), with the mean value of 63.1 g kg(-1) (dry weight). It was positively proportional to Soluble reactive phosphorus concentration in the interstitial water in a form of exponential function, but inversely related to the sediment Fe/P ratio. The sediment alkaline phosphatase activity was significantly related not only to the organic matter content (r = 0.829, P < 0.01, n = 120), but also to the soluble reactive phosphorus concentration in interstitial water (r = 0.454, P < 0.01, n = 42). In the laboratory experiment, the addition of organic matter (dry materials of an aquatic macrophyte) into the sediment significantly enhanced alkaline phosphatase activity and soluble reactive phosphorus release. However, in the treatment with organic matter added and aeration, this release was generally prevented in spite of an increase in APA. Hence, sediment organic matter can effectively accelerate phosphorus release by enzymatic hydrolysis and anaerobic desorption. The latter mechanism seems to be more important. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 学科主题 | Limnology; Marine & Freshwater Biology |
| 类目[WOS] | Limnology ; Marine & Freshwater Biology |
| 研究领域[WOS] | Marine & Freshwater Biology |
| 关键词[WOS] | ALKALINE-PHOSPHATASE ACTIVITY ; INTERSTITIAL WATER ; EUTROPHICATION ; DYNAMICS ; EXCHANGE ; RIVER |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [40730528]; Chinese Academy of Sciences [kzcx2-yw-426-01]; National Basic Research Program of China [2008CB418005] |
| 语种 | 英语 |
| WOS记录号 | WOS:000270773100004 |
| 公开日期 | 2010-10-13 |
| 源URL | [http://ir.ihb.ac.cn/handle/152342/7552]  |
| 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 | Liu, Yunbing,Guo, Yaxin,Song, Chunlei,et al. The effect of organic matter accumulation on phosphorus release in sediment of Chinese shallow lakes[J]. FUNDAMENTAL AND APPLIED LIMNOLOGY,2009,175(2):143-150. |
| APA | Liu, Yunbing.,Guo, Yaxin.,Song, Chunlei.,Xiao, Wenjuan.,Huang, Daizhong.,...&Zhou, Yiyong.(2009).The effect of organic matter accumulation on phosphorus release in sediment of Chinese shallow lakes.FUNDAMENTAL AND APPLIED LIMNOLOGY,175(2),143-150. |
| MLA | Liu, Yunbing,et al."The effect of organic matter accumulation on phosphorus release in sediment of Chinese shallow lakes".FUNDAMENTAL AND APPLIED LIMNOLOGY 175.2(2009):143-150. |
入库方式： OAI收割
来源：水生生物研究所
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