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) 348øùš\¥úûüýˆ


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                 GHIJK:TV213.4   LMNOP:A    LQRK:1672643X(2024)02003208

                               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.ItisfoundthatthehealthstatusoftheDongjiangRiversystemisinthesubhealthystatedur
                 ing2020 —2024,buttheoveralldevelopmentisimprovingtowardshealthy.Thescoresofsomesensitive
                 warningindices(2020—2024)fluctuated,soitisnecessarytostrengthentheprotectionandmanagement
                 ofthehealthoftheDongjiangRiversystem.
                 Keywords:healthofriversystem;prediction;greytheory;M-DGM(1,1);theDongjiangRiver






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