东平湖沉积物中营养盐分布特征与其污染释放规律分析

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1、山东建筑大学硕士学位论文sedimentofDongpingLakeshowedthat，theTNandTPconcentrationsin5～10cmdepthsedimentsampleswerehighest，andtheconcentrationsofTN，TPandOMwere127．11mg／kg，349．49mg／kgand61947mg／kg，respectively．ItshowedthatthecontaminationofsedimentinDongpingLakewasinfluencedbyhuman

2、activitiesThephosphorusformsinsedimentofdifferentdepthsshowedthat，theNaOH．Pcontentswerethehighest，andIP-Pcontentswerethesecondhighest．AsthedepthofsedimentinDongpingLakeincreased，therewerenoobviouscorrelationsamongthedifferentformsofphosphorus．Astheresultsofevaluation

3、sshowed，phosphoruswasmostsevereenrichmentinthesedimentsatsitesaroundofLashanWharfandestuaryofDawenRiver．ThesedimentinDongpingLakeWaspollutedmoreseverebyOM，andmostofsedimentWasaroundtheestuaryofDawenRiverThestaticreleaseofnitrogen，phosphorusandorganicmattersinsediment

4、ofDongpingLakeshowedthat,thereleasecontentsofNHa+-N，TN，SRPlTPandCODwerehighestatthe2l，16，2l，33and28day,respectively,thecontentswere0．46-1．03mg／L，1．15-2．15mg／L，0．03～0．23mg／L，0．01-0．15mg九and18～33mrdL，respectively．Theadsorption—desorptionexperimentshowedthat，theriskofnu

5、trientreleasewouldhappenontosediment-waterinterfaceduringtheexchangeofnutrientInthisstudy,thenutrientsandorganicmatterdistributionandreleasecharacteristicsofthesurfacesedimentsinDongpingLakewereinvestigatedandtheresultcanofferscientificinformationonmanagementofDongpi

6、ngLakeforlocalgovernmentKeywords：DongpingLake，sediment，nutrient，organicmatters，staticrelease，adsorption—desorption山东建筑大学硕士学位论文目录摘要⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯IABSTRACT⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．1lI第1章绪论1．1研究背景⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．1．1．2国内外研究现状⋯⋯

7、⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．1．1．2．1湖泊的内源污染⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．1．1．2．2湖泊沉积物污染的评价方法⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．2．1．2．3沉积物．水界面氮磷迁移转化⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．6．1．3研究的目的及意义⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．7．1．4课题研究内容⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．8．第2章材料与方法2．1研究区域概况⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯

8、⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．9．2．1．1东平湖概况⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．9．2．1．2东平湖的污染现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．9．2．1．3东平湖在南水北调工程中的重要性⋯⋯⋯⋯⋯⋯⋯