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Submerged macrophyte Ceratophyllum demersum affects phosphorus exchange at the sediment-water interface
Dai, Yanran1; Cheng, Shuiping1; Liang, Wei2; Wu, Zhenbin2; Liang, W (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China.
2015
Source PublicationWATER SCIENCE AND TECHNOLOGY
ISSN0273-1223
Volume71Issue:6Pages:913-921
AbstractSubstantial research efforts were made to assess the effects of submerged macrophytes on water quality improvement, but information on the mechanism of submerged macrophytes relative to the exchange of phosphorus (P) at the sediment-water interface is very limited. To help fill the void, a popular species, Ceratophyllum demersum L. was chosen to address the effects and mechanisms of submerged macrophyte growth on the processes of P exchange across the sediment-water interface. In treatment mesocosms (planted), equilibrium phosphorus concentration (EPC0) value falls from 68.4 to 36.0 mu g/L, with a mean value of 52.5 mu g/L. Conversely, the distribution coefficient (Kd) value has a predominantly increasing trend. But they are both significantly higher than an unplanted control (p < 0.05). Also, in the planted mesocosm, maximum phosphate sorption capacity (Q(max)) was significantly reduced (4,721-3,845 mg/kg), and most of the linear correlations between different forms of phosphorus and sediment P adsorption parameters were affected (p < 0.05). The EPC0 Percentage Saturation percentages (EPCsat) in planted groups were 325% higher than that in control (p < 0.05). We conclude that C. demersum could promote the release of P from sediments, and soluble reactive phosphorus concentration in overlying water is probably the driving force for P exchange at the sediment-water interface.
SubtypeArticle
KeywordCeratophyL.um Demersum L. Eutrophic Water Body Phosphorus Release Phosphate Sorption Sediment
Department[Dai, Yanran ; Cheng, Shuiping] Tongji Univ, Minist Educ, Key Lab Yangtze River Water Environm, Shanghai 200092, Peoples R China ; [Liang, Wei ; Wu, Zhenbin] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
DOI10.2166/wst.2015.050
WOS HeadingsScience & Technology ; Technology ; Life Sciences & Biomedicine ; Physical Sciences
Indexed BySCI
Language英语
WOS Research AreaEngineering ; Environmental Sciences & Ecology ; Water Resources
WOS SubjectEngineering, Environmental ; Environmental Sciences ; Water Resources
WOS IDWOS:000352978200016
WOS KeywordPHOSPHATE SORPTION ; ORGANIC-MATTER ; LAKE-SEDIMENTS ; BED SEDIMENTS ; RESTORATION ; ADSORPTION ; RETENTION ; RELEASE ; BAY ; L.
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Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/23942
Collection水环境工程研究中心_期刊论文
Corresponding AuthorLiang, W (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China.
Affiliation1.Tongji Univ, Minist Educ, Key Lab Yangtze River Water Environm, Shanghai 200092, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
Recommended Citation
GB/T 7714
Dai, Yanran,Cheng, Shuiping,Liang, Wei,et al. Submerged macrophyte Ceratophyllum demersum affects phosphorus exchange at the sediment-water interface[J]. WATER SCIENCE AND TECHNOLOGY,2015,71(6):913-921.
APA Dai, Yanran,Cheng, Shuiping,Liang, Wei,Wu, Zhenbin,&Liang, W .(2015).Submerged macrophyte Ceratophyllum demersum affects phosphorus exchange at the sediment-water interface.WATER SCIENCE AND TECHNOLOGY,71(6),913-921.
MLA Dai, Yanran,et al."Submerged macrophyte Ceratophyllum demersum affects phosphorus exchange at the sediment-water interface".WATER SCIENCE AND TECHNOLOGY 71.6(2015):913-921.
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