Laboratory Simulation on Phosphorus Releasing near the Water／Sediment Interface in the East China Sea off the Changjiang Estuary-中国Betway体育网页登陆

摘要 SurfacesedimentsamplestakenfromtheEastChinaSeaofftheChangjiangestuaryareusedasrawmaterialsforphosphorusreleasingexperiment.Itisfoundthatafterbeingthoroughlymixedwithseawaterforabout10minutes,phosphorusreleasedfromthesedimentsreachesitsmaximumvalue.AdsorptionkineticscanbefittedwithbothElovichequationandtwo-constantrateequation.Thereleasingamountiscloselyrelatedtothecompositionofthesediments.Phosphorusreleasefromsiltyandmuddysedimentishigherthanfromthatdominatedbysandycomposition.Forthedesorptionreaction,iron-phosphorus(Fe-P)isthemostactiveone,withareleasingratiohigherthanotherphosphorusforms,followedbyabsorbed-phosphorus(Ad-P)andorganicboundphosphorus(OP).Allofthemcanbereferredtoasbio-availablephosphorus.Theresultsdemonstratethatphosphorusinsedimentscanbereleasedintoseawaterundersuitablehydrodynamicconditions,andhaveagreatimpactonthenutritionstateandprimaryproductivityofmarinebiosphere.

1WANGHong;FANWei;YUNCaixing.Indicators and impact analysis of sediment from the Changjiang Estuary and East China Sea to.海洋科学,2004-02.
2.THE SOURCE OF COHESIVE SEDIMENT AND ITS TRANSPORT IN THE YANGTZE ESTUARY AND NEAR SEA.地球物理学,1992-02.
3CHOIByung-Ho;MUNJong-Yoon;KOJin-Seok;YUKJin-Hee.Simulation of Suspended Sediment in the Yellow and East China Seas.海洋科学,2005-02.
4BIAN Changwei;JIANG Wensheng;Richard J. Greatbatch;DING Hui.The Suspended Sediment Concentration Distribution in the Bohai Sea, Yellow Sea and East China Sea.海洋科学,2013-03.
5LEI Kun.GRAIN SIZE DISTRIBUTION OF SEDIMENT IN THE NORTHERN EAST CHINA SEA AND THE RELATIONSHIP WITH THE SEA CURRENTS.地球物理学,2002-02.
6YAN Yunwei;CHEN Changlin;LING Zheng.Warm water wake off northeast Vietnam in the South China Sea.海洋科学,2014-11.
7刘敏;侯立军;等.Nitrogen and Phosphorus Diffusive Fluxes Across the Sediment-Water Interface in Estuarine and Coastal Tidal Flats.海洋科学,2002-01.
8Mengxia LIAO;Tianlong DENG.Environmental geochemistry of arsenic in sediment-water interface of Poyang Lake, China.地球化学,2006-01.
9Sivaji Patra;Congqiang LIU;Siliang LI;Fushun WANG;Baoli WANG.Water chemical behavior at Yangtze （Changjiang） River estuary.地球化学,2006-02.
10刘高峰 ;沈焕庭 ;王永红 ;吴加学.Bottom Sediment Transport in the Flood and Ebb Channels of the Changjiang Estuary.海洋科学,2004-01.

Laboratory Simulation on Phosphorus Releasing near the Water／Sediment Interface in the East China Sea off the Changjiang Estuary

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