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:1672643X(2023)02004210
SimulationanalysisofwaterresourcescarryingcapacityofTianjin
basedonsystem dynamicsmodel
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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:Tostudythelongterm developmentofwaterresourcessupplyanddemandinTianjinCity,
basedonthecurrentsituation,asystemdynamicsmodelforsustainablewaterresourcesdevelopmentin
Tianjinwasestablishedusingsystemdynamicsandhierarchicalanalysismethod.Thenthesimulationre
sultswerecomparedwiththehistoricaldatafrom2012to2019 ,theresultsshowthattheabsolutevalueof
therelativeerrorislessthan10%,sotheproposedmodelishighlyreliable,whichcanbeusedtopredict
thefuturedevelopmentofwaterresourcescarryingcapacityofTianjinCity.Fourdifferentscenarios,
namely,statusquocontinuity(S),integratedwaterconservation(S),opensourceandpollutioncon
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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