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1、西安理工大學(xué)碩士學(xué)位論文分布式水文模型在湟水流域的適用性研究姓名:王亞軍申請(qǐng)學(xué)位級(jí)別:碩士專業(yè):水文學(xué)及水資源指導(dǎo)教師:黃強(qiáng)20080301西安理工大學(xué)碩士論文Title:STUDYONAPPLICABILITYOFS、『1,ATINHUANGSHUIRIVERBASINMajor:HydrologyandWaterResourcesName:YajunWANGSignature:Supervisor:ProfQiangHuangSig
2、natureAbstractDistributedhydrologicalmodel——SoilandWaterAssessmentTool(SWAT)isappliedtosimulatewaterrecycleprocess,soilerosionprocess,andthetransferprocessofpollutingmaterialsinHuangshuiRiverBasinSowecanmakeaquantitative
3、assessmentonwateryield、sedimentyieldandpollutantyieldofthebasinaswellastheirspatio—temporaldistributionAnd、^,i也thehelpofSWATwecallurdfythecontinuouschangeofwaterquantity、析ththeevolvementofassociatedwaterqualitySOthecompr
4、ehensiveassessmentonwaterquantityandqualityofthebasinwouldbecarriedoutFirstlythenetworkofriversandsubbasinareidentifiedfromDEMofthebasinThenthesoiltypeandlandusearereclassified,thedatabaseofsoilsissetupParametersofthemod
5、elwerecalibratedandthemodelistestedbyobserveddataandthecriticalparametersaretestedbyasensitiveanalysisInconsiderationthatthestudyareaisabout15600km。large,thegoodnessoffitofthemodelissatisfiedThesimulatedoutcomebythecalib
6、ratedmodelshowsthatover70percentprecipitationand65percentrunoffofthebasinfocusontheupperreachesofXiningstation,while80percentsedimentyieldand70percentnon—pointsourcepollutantscomefromthewatershedareawhichlocatebetweenXin
7、ingstationandMinhestationThedifferenceofwateryield,sedimentyieldandloadingsofnonpointsourcepollutantsindifferenthydrologicyearsisdramaticThesedimentandloadingsofnon—pointsourcepollutantscausedbyrainstormfocusonfloodseaso
8、nespeciallyinJulyEachlandcoverrepresentedinthemodelyieldsdifferentresultsTilthcontributesthemostofnitrateandsolublephosphorusyieldRNGB(themountainrangebrush)andSWRN(themountainrangegrasses)contributesthemostsedimentyield
9、accompanyingthehighestORG—NandSED_PyieldFinallythemodelisappliedtomakecomprehensiveassessmentonthebasin’swaterquantityandqualityTheoutcomeshowedthatthewaterpollutionoftheHuangshuiRiverisveryserious,whichwascoveredinsomed
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