Page 36 - 《水资源与水工程学报》2024年第2期
P. 36
!35 "!2 # & ' ( ) & * + , - Vol.35No.2
2024 $ 4 % JournalofWaterResources&WaterEngineering Apr.,2024
DOI:10.11705/j.issn.1672-643X.2024.02.04
'Å M-DGM(1,1) 348øù\¥úûüý
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uv!"è(2015—2019 ª) ¦#¬Ò, ÓÔ#$·2}, ë):¥û|¿À, ¢¾ M-
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GHIJK:TV213.4 LMNOP:A LQRK:1672643X(2024)02003208
HealthassessmentoftheDongjiangRiversystem
basedontheM -DGM(1,1)model
1
2
1
1
FANGChenzhuo,WANGHaipeng,WULonghua,YANGXiaoli,
1
3
1
1
DENGXiping,WUYulun,ZHANGGuangming,LIXiyuan
(1.CollegeofWaterConservancyandHydropowerEngineering,HoHaiUniversity,Nanjing210098,China;2.NanjingHydraulic
ResearchInstitute ,Nangjing210029,China;3.PowerChinaZhongnanEngineeringCorporationLimited,Changsha410014,China)
Abstract:AsanimportantwatersourceforGuangdongProvinceandHongKongarea,DongjiangRiveris
directlyrelatedtotheeconomicdevelopmentofthePearlRiverDeltaregionandtheprosperityandstabili
tyoftheHongKongSpecialAdministrativeRegion.Inordertograspthedevelopmenttrendofthehealth
statusoftheDongjiangRiversystem andpromotesustainabledevelopmentoftheeconomicsocietyin
DongjiangRiverBasin ,regardingtotheoscillatorydistributioncharacteristicsofDongjiangRiversystem
healthscores (2015—2019),aM-DGM(1,1)greypredictionmodelwasconstructedbasedonthegrey
predictingtheoryandthegrayrecurrencedynamicmodelwithequaldimensiontoassessthefuturehealth
statusoftheriversystem(2020—2024).Theresultsshowthattheaccuracyofthepredictionmodelcan
reachthefirstlevel,andthemodelcanmeettherequirementsofhealthassessmentoftheDongjiangRiv
ersystem.ItisfoundthatthehealthstatusoftheDongjiangRiversystemisinthesubhealthystatedur
ing2020 —2024,buttheoveralldevelopmentisimprovingtowardshealthy.Thescoresofsomesensitive
warningindices(2020—2024)fluctuated,soitisnecessarytostrengthentheprotectionandmanagement
ofthehealthoftheDongjiangRiversystem.
Keywords:healthofriversystem;prediction;greytheory;M-DGM(1,1);theDongjiangRiver
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