Page 121 - 《水资源与水工程学报》2022年第4期
P. 121

!33 " ! 4 #                       & ' ( ) & * + , -                               Vol.33No.4
               2022 $ 8 %               JournalofWaterResources&WaterEngineering                 Aug.,2022

            DOI:10.11705/j.issn.1672-643X.2022.04.16


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                 FGHIJ:TV143   KLMNO:A    KPQJ:1672643X(2022)04011708

                            Analysisofwaterandsedimentexchangebetweenthe
                            middlereachesofHuaiheRiverandtheHongzeLake

                                                          1,2
                                                DUANYu ,XUGuobin        2
                       (1.KeyLaboratoryofEngineeringSediment,TianjinResearchInstituteforWaterTransportEngineering,
                          MinistryofTransport,Tianjin300456,China;2.StateKeyLaboratoryofHydraulicEngineering
                                    SimulationandSafety,TianjinUniversity,Tianjin300350,China)
                 Abstract:ThewaterandsedimentexchangestatusbetweenthemiddlereachesofHuaiheRiverandthe
                 HongzeLakeaffectstheintrinsicrelationshipbetweentheriverandlake.Basedonthecalculationofthe
                 waterandsedimentexchangeindexesbetweenHuaiheRiverandtheHongzeLakefrom1975to2015 ,a
                 varietyofstatisticaltestswerecarriedoutforthetrendvariation,abruptchangetestandperiodicstatistics
                 analysisoftheindexes.Theresultsshowthat ,affectedbytheHuaiheRiverregulationprojectsbuiltin
                 differentages ,thewaterexchangebetweentheriverandlakegenerallyshowedaninsignificantincreasing
                 trend ,resultinginaninsignificantincreasingtrendofthereservoircapacityoftheHongzeLakeaswell.
                 Sedimentintothelakewasmorethanthatoutofthelake,andsedimentdepositioninthelakebasinin
                 creasedinsignificantlyyearbyyear.However ,thereservoircapacityandbasindepositionoftheHongze
                 Lakefluctuatedstablyduringthestudyperiod ,andtherewerenoobviousabruptchanges.Thewaterand
                 sedimentexchangedegreebetweentheHuaiheRiverandHongzeLakeshowedmultitimescaleperiodic
                 characteristics ,with14aasthefirstprincipalperiod.Thewaterandsedimentexchangedegreebetween
                 theriverandlakewasinarelativelystablestate.Theresearchresultsclarifiedthewaterandsedimentin
                 teractiverelationshipbetweenthemiddlereachesofHuaiheRiverandtheHongzeLake ,whichcouldpro
                 videatheoreticalguidanceforriver-lakegovernance.
                 Keywords:waterandsedimentexchangebetweentheriverandlake;trendvariation;abruptchange
                 test ;periodicstatistics;themiddlereachesofHuaiheRiver;theHongzelake
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