The Functions of China Marginal Sea Sediments in the Cycle of Biogenic Elements-中国期刊网

摘要 ThecontentsofbiogenicelementsinChinamarginalseasedimentsarerelatedtotheirgrainsizes,rivertransport,etal.Ingeneral,thefinerthegrainsizeis,thehigherthecontentsoforganicmatterandOC,N,Pare,thelowerthecontentsofSandSiare.ThebiogeochemicalenvironmentsofsedimentsarerelatedtoEh,pH,temperaturecontentofOC,Fe3+/Fe2+radio,waterdynamicscondition,grainsizeofsediment,Ssysteminsedimentinterstitialwaters,etal.,andtheyinfluencetheearlydiagenesesandcycleofbiogenicelementsinsediments.InmostregionsofChinamarginalsea,thefluxdirectionsofS2-,HS-,3-NH4+H4SiO4,PO4,acrossthesediment-waterinterfacearefromsedimenttotheoverlyingseawater,thefluxdirectionsofSO42-,HCO3-,NO3-,NO2-acrossthesediment-waterinterfacearefromtheoverlyingseawatertosediment.Theirrigationoflivingthingsisimportantinthecycleofthebiogenicelementsacrosssediment-waterinterfaces.

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The Functions of China Marginal Sea Sediments in the Cycle of Biogenic Elements

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The Functions of China Marginal Sea Sediments in the Cycle of Biogenic Elements

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