Page 103 - 《水资源与水工程学报》2023年第4期
P. 103

!34 " ! 4 #                       & ' ( ) & * + , -                               Vol.34No.4
               2023 $ 8%                JournalofWaterResources&WaterEngineering                 Aug.,2023

            DOI:10.11705/j.issn.1672-643X.2023.04.12


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                 H I: ?oZV‘Á¯Ø·@”v2”ëÎ^@¡º%ÙÚ, xy@¡ÑÒ^UVÇÈ, 'xëÎ@¡†‘fV
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                 ¡®”^õ”f , Â=ëÎ@¡Ñґý, ˜ÂµQ9K@¡ÿRÉw^‚®”, @ž?*”@V@¡^Á•
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                 MNOPQ:X824;X524   7RSTU:A    7VWQ:1672643X(2023)04009908
                        Riskassessmentmethodofwaterqualityinthewaterwayof

                                          PoyangLaketoYangtzeRiver

                                   1
                                                                               1
                                                                                                  3
                                                                                          1
                                                               1
                                                 1,2
                      ZHOUHanjie,TANGMing ,XUWentao,XIEQianchen,WUYuze,HELi
              (1.SchoolofHydraulic&EcologicalEngineering,NanchangInstituteofTechnology,Nanchang330099,China;2.JiangxiKey
                           laboratoryofHydrology -WaterResourcesandWaterEnvironment,Nanchang330099,China;
                              3.FuheHydrologyandWaterResourcesMonitoringCenter,Fuzhou344100,China)
                 Abstract:Inordertoquantifythewaterqualitypollutionsituationofthemonitoringsectionsandexplore
                 thevariationofwaterqualityrisk ,thewaterqualityriskofthewaterwayofPoyangLaketoYangtzeRiver
                 wasevaluatedbasedonthemonthlywaterqualitydeteriorationrateofdifferentmonitoringsections.The
                 waterqualitymonitoringdataofWucheng ,Duchang,Laoyemiao,XingziandHamashisectionswerese
                 lectedtosimulatetherisksofexceedingwaterqualitystandardsunderdifferentscenarios,andthespatial
                 andtemporalvariationofwaterqualityriskinthewaterwaywasdiscussed.Theresultsshowthatthe
                 monthlydeteriorationrateofwaterqualityinPoyangLakefitsthep- Ⅲ distribution.Becausethewater
                 qualityriskofthesectionisdefinedfromtheperspectiveoftheprobabilityofoccurrenceofharmfule
                 vents ,thewaterqualityproblemsfacedbythewaterwayofPoyangLaketoYangtzeRivercanbeaccu
                 ratelydescribed ,andtheproposedriskthresholdcanreasonablycharacterizetherisklevel.Themainin
                 dicesaffectingwaterqualityofthewaterwayareTP,pHandCOD.TPisthecontrolindexthatcauses
                 thewaterqualityofHamashitoexceedthestandard,andtheprobabilityofexceedingthestandardis
                12.29%;thecontrolindexofWuchengandLaoyemiaoisCOD,withtheprobabilityofexceedingthe
                 standardof2.58% and2.73% respectively;andpHismainlyresponsibleforthedeteriorationofwater
                 qualityinDuchangandXingzi,andtheprobabilityofexceedingthestandardis1.82% and3.29% re

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