Page 79 - 《水资源与水工程学报》2023年第1期
P. 79
!34 " ! 1 # & ' ( ) & * + , - Vol.34No.1
2023 $ 2 % JournalofWaterResources&WaterEngineering Feb.,2023
DOI:10.11705/j.issn.1672-643X.2023.01.09
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FGHIJ:TV213.4 KLMNO:A KPQJ:1672643X(2023)01007509
DynamicevaluationofwaterresourcessustainabilityinthePearlRiver
Deltabasedonthecombinedweightcloudmodel
1
2
1
YUXi,LIXiaoying,WUShaolin
(1.CollegeofWaterConservancyandHydropowerEngineering,HohaiUniversity,Nanjing210098,China;
2.CCCCShanghaiNavigationBureauCo.,Ltd.,Shanghai200002,China)
Abstract:Inordertocomprehensivelyevaluatetheregionalwaterresourcessustainability,aregionalwa
terresourcessustainabilityevaluationsystemwasconstructedbasedonthecompositesystemofwaterre
sources,socialeconomyandecologicalenvironment.Theprojectionpursuitmodelandcloudmodelwere
usedtoreasonablyassignthecomprehensiveweightofeachindex ,andthenormalcloudmodelwasa
doptedtodeterminetheindexmembershipdegree.Then ,aregionalwaterresourcessustainabilityevalua
tionmodelbasedonthecombinedweightandcloudmodelwasestablishedtoevaluatethestatusofwater
resourcessustainabilityofninecitiesinthePearlRiverDelta.Theresultsshowthatthewaterresources
sustainabilityofthePearlRiverDeltaUrbanAgglomerationshowedanoverallupwardtrendfrom2007to
2020 ,whichhasreachedapreferablelevelby2020.Thespatialpatternofwaterresourcessustainability
intheregionshowsthattheeasterncitiesarebetterthanthewesterncitiesandthesoutherncoastalcities
arebetterthanthefarcoastalcities.Thelevelsofsustainabilityamongthesubsystemsarenotconsistent,
theecologicalenvironmentsubsystemisatagooddevelopmentlevel,whereasthewaterresourcessubsys
temandsocialeconomysubsystemarethemainfactorscausingthespatialdifferenceofwaterresources
sustainabilityinthePearlRiverDeltaUrbanAgglomeration.
Keywords:sustainabilityofwaterresources;projectionpursuitmodel;normalcloudmodel;dynamice
valuation ;thePearlRiverDelta
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