Page 46 - 《水资源与水工程学报》2023年第2期
P. 46

!34 " ! 2 #                       & ' ( ) & * + , -                               Vol.34No.2
               2023 $ 4 %               JournalofWaterResources&WaterEngineering                 Apr.,2023

            DOI:10.11705/j.issn.1672-643X.2023.02.06


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                 GHIJK:TV213.4   LMNOP:A    LQRK:1672643X(2023)02004210
                    SimulationanalysisofwaterresourcescarryingcapacityofTianjin
                                         basedonsystem dynamicsmodel

                                                             1,2
                                                                                       3
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              CHENWenjuan ,YAORunyang ,SHIWenhao ,LIQi ,ZHAOJingkui,ZHANGYonggen                         1,2
                      (1.InstituteofSurface-EarthSystemScience,SchoolofEarthSystemScience,TianjinUniversity,Tianjin
                       300072,China;2.TianjinKeyLaboratoryofEarthCriticalZoneScienceandSustainableDevelopmentin
                          BohaiRim ,Tianjin300072,China;3.XingtaiWaterAffairsBureau,Xingtai054000,China)
                 Abstract:Tostudythelongterm developmentofwaterresourcessupplyanddemandinTianjinCity,
                 basedonthecurrentsituation,asystemdynamicsmodelforsustainablewaterresourcesdevelopmentin
                 Tianjinwasestablishedusingsystemdynamicsandhierarchicalanalysismethod.Thenthesimulationre
                 sultswerecomparedwiththehistoricaldatafrom2012to2019 ,theresultsshowthattheabsolutevalueof
                 therelativeerrorislessthan10%,sotheproposedmodelishighlyreliable,whichcanbeusedtopredict
                 thefuturedevelopmentofwaterresourcescarryingcapacityofTianjinCity.Fourdifferentscenarios,
                 namely,statusquocontinuity(S),integratedwaterconservation(S),opensourceandpollutioncon
                                            1
                                                                           2
                 trol (S),andintegrateddevelopment(S)weresetinthesystemdynamicsmodeltopredictthesitua
                                                    4
                      3
                 tionofwatersupplyanddemandbalanceinthetimeframeof2020-2035.Theresultsshowthatthetotal
                                                                3
                                                             9
                 waterconsumptioninTianjincanreach4.158×10 m underscenarioS in2035,andthewaterre
                                                                               1
                 sourcescarryingcoefficientsforscenariosS -Sin2035arepredictedtobe0.1782,0.3973,0.4815
                                                        4
                                                    1
                 and0.7281,respectively.TheanalysisshowsthatthewatersupplyfromtheSouth-NorthWaterDiver
                 sionProjectEastLinein2025willsignificantlyalleviatetheoverloadsituationofwaterresourcesinTian
                 jin.Amongthefourdevelopmentscenarios ,scenarioShasthebestperformanceonalleviatingtheimbal
                                                              4
                 ancebetweenwaterresourcessupplyanddemand,sothegovernmentshouldfollowtheprincipleof“pri
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