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STUDY ON HAB DYNAMICAL MODEL AND HAB LIMITATION FACTORS FOR THE SEA AREA ADJACENT TO CHANGJIANG RIVER ESTUARY
Author(s): 
Pages: 93-100
Year: Issue:  1
Journal: OCEANOLOGIA ET LIMNOLOGIA SINICA

Keyword:  生态动力学模型海洋生态围隔试验赤潮;
Abstract: 基于中日合作长江口海域生态围隔的试验数据,建立了长江口海域六分量赤潮生态动力学模型,并用海上实测数据进行了检验,进而详细讨论了营养盐及光照强度对赤潮形成的影响.结果表明,此次海洋生态围隔试验加入营养盐无机磷所达到的浓度对于诱发该赤潮过程是适宜的.随着初始N浓度的降低,P增加到一定程度便不再影响叶绿素浓度分布.当光照为原光照强度的50%时,叶绿素浓度最高可达35μg/L.长江口海域发生赤潮无机氮和无机磷营养盐浓度阈值分别为4.5μmol/L和1.0μmol/L.该模型结合水动力学模型不仅可以对海洋赤潮现象进行预测及海洋水质环境的总量控制,也可直接应用于海水养殖,对施肥及养殖容量提供理论指导.
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