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1、山東建筑大學(xué)碩士學(xué)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(xué)碩士學(xué)位論文目錄摘要??????????????????????????????IABSTRACT????????????????????????????????????.1lI第1章緒論1.1研究背景???????????????????????????????.1.1.2國(guó)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(píng)價(jià)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?jī)?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???????