Cycling of phosphorus in the Jiaozhou Bay

查看全文 作　　者：Q1 [1]Xiaohong;LIU [1]Sumei;ZHANG [1,2]Jing;REN [1]Jingling;ZHANG [1]Guiling

机构地区：[1]Key Laboratory of Marine Chemistry Theory and Technology Ministry of Education, Ocean University of China, Qingdao 266100, China;[2]State Key Laboratory of Estuarine and Coastal Research, East China Normal University,Shanghai 200062, China

出　　处：《Acta Oceanologica Sinica》索引2011年第30卷第2期,共13页

基　　金：The National Basic Research Program of China under contract No. 2010CB428901;the National Natural Science Foundation of China under contract Nos 40206017 and 40925017;Basic Research Program of Science and Technology of the Ministry of Education under contract No. 108081 摘　　要：Dissolved inorganic phosphorus (DIP ),dissolved organic phosphorus (DOP ),particulate inorganic phosphorus (P IP ) and particulate organic phosphorus (P OP ) in the Jiaozhou Bay (JZB) and its adjacent major rivers were analyzed during 2001–2003.DIP was the major form of dissolved phosphorus in JZB,representing 62%–83% of the total dissolved phosphorus (T DP ),and the P IP concentration generally exceeded the P OP concentration.The concentrations of phosphorus were higher in the north than in the south of the bay,which were related to the fluvial input and water exchange rate.The dissolved phosphorus concentrations were higher in the autumn and spring than in the summer,while the seasonal variation of particulate phosphorus showed opposite pattern.The distribution of phosphorus is mainly affected by the growth of phytoplankton,desorption/adsorption of DIP from and to particulates,and anthropogenic activities.A preliminary phosphorus budget was established.In JZB,riverine input and water exchange flow between JZB and the Huanghai (Yellow) Sea are the major sources of phosphorus,followed by industrial and domestic waste transport,and then atmospheric deposition.Phosphorus burial efficiency is estimated to be 91%.About 52.2 × 10 6 mol/a of phosphorus were assimilated by phytoplankton,of which about 68% was recycled in the water column and sediment. 关键词：无机磷胶州湾自行车浮游植物生长溶解有机磷 DIP P浓度颗粒磷

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Cycling of phosphorus in the Jiaozhou Bay

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