Page 33 - 《水资源与水工程学报》2025年第1期
P. 33

!36 "!1 #                         & ' ( ) & * + , -                               Vol.36No.1
               2025 $ 2 %               JournalofWaterResources&WaterEngineering                 Feb.,2025

            DOI:10.11705/j.issn.1672-643X.2025.01.04


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                 BC<DE:P333;TV213.4   FGHIJ:A    FKLE:1672643X(2025)01002911
                      ImpactoffuturewaterresourceschangesontheLuan-Tianjin
                                   WaterDiversionProjectbasedonCMIP 6


                                   WANGLinhao,ZHANGTing,LIJianzhu,FENGPing
             (StateKeyLaboratoryofHydraulicEngineeringIntelligentConstructionandOperation,TianjingUniversity,Tianjin300350,China)
                 Abstract:InordertorevealtheimpactoffuturewaterresourceschangesontheLuan-TianjinWaterDi
                 versionProject ,weconstructedaSWATmodelforthePanjiakouReservoircontrolledwatershedinthe
                 LuanheRiverBasinbasedongeospatialandhydrometeorologicaldata.Foursingleindicatorsandone
                 comprehensiveindicatorwereselectedtoevaluatetheapplicabilityoftheselectedeightglobalclimate
                 models (GCMs)onastationbystationbasis,andaweightedmultimodedatasetwasassembledbased
                 ontheevaluationresults.Subsequently ,theimprovedDelta-DCSIwasusedtodownscaleandcorrect
                 themeteorologicaldata ,whileretainingitstrendsignal.Thecorrectedmeteorologicaldatawasthenused
                 todrivetheSWATmodel ,soastopredictthewaterresourceschangesinthefuturescenario.Theresults
                 showthattheproposedSWATmodelhasgoodapplicability,andtheaccuracyofthemultimodeensemble
                 dataaftermodeloptimizationcanmeettherequirementsoftheSWATmodelforfutureprediction.Inthe
                 future ,theinterannualvariationofrunoffinthethreeclimatescenarioswillbedramaticwithgreatfluctu
                 ations,showinganoverallincreasingtrend.Comparedto1997-2022,theinflowrunoffofPanjiakou
                 Reservoirwillincreasesignificantlyinthefuture,providingabundantwaterforthebasin.Asaresult,
                 thewaterdemandofTianjinfromLuanheRiverwaterdiversionwilldecrease.
                 Keywords:waterresources;downscaling;coupledmodelintercomparisonprojectphase6(CMIP6);
                 soilandwaterassessmenttool(SWAT)model;Luan-TianjinWaterDiversionProject




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