莱州湾海洋环境评价与污染总量控制方法的的研究

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1、及南部近岸水域，水深较浅，流速普遍很弱，水体呆滞，稀释扩散能力极弱，因此莱州湾顶部区域的存贮容量和输移容量都是比较低的。莱州湾余环流分布形势表明，在湾口东部，余流较强，海水交换比较活跃，水体的物理自净能力较强。其它水域余流普遍较弱，特别是湾顶部，余流极弱，对通过河口排放的污染物质的输运扩散极为不利。莱州湾海水中COD主要受虞河和小清河排放的影响，无机氮主要受小清河排放的影响。根据莱州湾海域的功能区划，近岸水质按二类标准计算，河流入海通量取1991年值。虞河COD的允许入海量为1017．290t／a，达标削减量为21649．01t／a，削减率为95．51％。小清河COD的允许入海量为121

2、2．923Ua，达标削减量为22407．177t／a，削减率为94．86％。小清河无机氮的允许入海量为121．192t／a，达标削减量为1806．95t／a，削减率为93．7％。关键词：莱州湾：环境评价；污染：入海通量：总量控制EnvironmentassessmentandStudyontheTotalQuantityControlofPollutionintheLaizhouBayAbstractAlongwiththerapiddevelopmentofcoastaleconomy，thefastgrowthofpopulationandtheyear-by·yearincreas

3、ingofdischargedpollutant，offshoreeutrophicationisseriousdaybyday,whichisaworldproblemandseriouslyaffectstheoffshoreresourcesandthesustainableuseofenvironmentLaizhouBaylocatesinthenorthpartofourcountryandhasimportantecologyvalues．Butinrecentyears．theenvironmentofLaizhouBayhasbeenworseneddaybyday,t

4、heecosystemfunctionisseriouslydegenerated，andtheresourcesaretendedtodriesup．ItisindispensabletoreinforcetheresearchforthepresentenvironmentsituationandthepollutionmechanismofLaizhouBayandseekthecontrollingmethodofgrosspollutiontorealizetheresourcesandenvironmentsustainableuse．Accordingtotheabove，

5、theprojectteamhasimplementedtwoinvestigationsofmarineenvironmentpresentsituationofLaizhouBayseparateinJuneandSeptember2001，andinthisfoundation，theprojectteamcalculatesthepermissionquantitytodumppollutants，thereducedquantityandreductionrateofthemainriversflowingintotheLaizhouBaythroughtheLaizhouBa

6、yhydrodynamicprocessandthemechanismofpollutantproliferatingsimulation，unifyingtheLaizhouBayfimctiondelimit．ThemainpollutantofLaizhouBayisCOD，theinorganicni廿ogen(DIN)andtheinorganicphosphate(DIP)，theoilandthevolatilityphenolalsoexceedthestandardanddisplayspace-timediversity．InJune，themainpollutant

7、isCOD，theinorganicnitrogenandthevolatilityphenol，andtheyaremainlyconcentratesinthetipbayarea．InSeptember,thepollutantexceedthestandardatvaryingdegreeintheentireareaofLaizhouBay,andthemainpollutantareCOD，theinorganicnit