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《東平湖沉積物中營養(yǎng)鹽分布特征與其污染釋放規(guī)律分析》由會員上傳分享，免費在線閱讀，更多相關(guān)內(nèi)容在行業(yè)資料-天天文庫。
1、山東建筑大學碩士學位論文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山東建筑大學碩士學位論文目錄摘要??????????????????????????????IABSTRACT????????????????????????????????????．1lI第1章緒論1．1研究背景???????????????????????????????．1．1．2國內(nèi)外研究現(xiàn)狀??
7、??????????????????????????．1．1．2．1湖泊的內(nèi)源污染???????????????????????????．1．1．2．2湖泊沉積物污染的評價方法??????????????????????．2．1．2．3沉積物．水界面氮磷遷移轉(zhuǎn)化??????????????????????．6．1．3研究的目的及意義???????????????????????????．7．1．4課題研究內(nèi)容?????????????????????????????．8．第2章材料與方法2．1研究區(qū)域概況????????????
8、?????????????????．9．2．1．1東平湖概況?????????????????????????????．9．2．1．2東平湖的污染現(xiàn)狀??????????????????????????．9．2．1．3東平湖在南水北調(diào)工程中的重要性???????
