黃河三角洲地區(qū)地下水入海量的數(shù)值模擬分析研究.pdf

1、青島海洋大學(xué)碩士學(xué)位論文黃河三角洲地區(qū)地下水入海量的數(shù)值模擬分析研究姓名：張效龍申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：海洋地質(zhì)學(xué)指導(dǎo)教師：賈永剛鄭西來(lái)2001.6.16AbstractThisthesissummarizesthehydrogeologicconditionsandestablishesthehydrogeologicmodelthrou【ghsystematicallyanalyzingthephysicalgeographythe

2、regionalgeologicalconditionsandhydrogeologyicdataintheYellowRiverDeltaThemodelisadjustedbymakinguseofthesimu|ationsoftwareModflowonthebasisoftheinitialconditionsandboundaryconditionsnleflowfieldinfiltratevelocityanddisch

3、argefluxintotheBohaiSeaundertheeffectofthedifferentfactorsareanalyzedbasedonthemodelTheresultswill0行erscientificevidenceforsolvingnutrientfluxesintoBohaiGulfinthegroundwaterintheYellowRiverDeltaThegroundwaterflowfieldiSs

4、imulatedandanalyzedundertheinfluenceofdifferentfactorsTheresultshowsthatthegroundwatertablechangeiscontrolledbytheprecipitationandevaporationintheresearchareaTheboundaryconditionshavelittleeffectonthedynamicchangeofgroun

5、dwatertableThegroundwaterinfiltratevelocityanddischargefluxesarecalculatedundertheeffeCtofdifferentfactorsThegroundwaterinfiltratevelocityiSverylittleandison104m／dmagnitudegradesnledischargefluxesarealsoverylittlecontras

6、tedwiththeaveragesurfacerunoffamountofmanyyearsnlisamountisonly1／10000oftheaveragesurfacerunoffamountThedischargefluxesintoBohaiSeawhentheYellowRiverarefilledwithwaterarecontrastedwiththedischargefluxes，whentheYellowRive

7、riSflow—breakundertheeffectofdifferentfactorsTheresultdiscoversthatthedischargefluxeswhentheYellowRiveriSflowbreakaresmallerthanthatwhentheYellowRiveriSfilledwithwaterThefluxesreduce20％～30％ofthedischargefluxeswhentheYell