简介：BasedonthehistoricalevolutionoftheHangzhouBay,bymakinguseoftheconclusionsmadebythepreviousresearchworkersandtheintegrationofconcretedata,fivedistinctimpactindicatorsofthesedimentfromtheChangjiangEstuaryandtheEastChinaSeatotheHangzhouBayaresummarized.NumericalcalculationandanalysisindicatethatthescouringanddepositionofseabedintheHangzhouBayaresubjecttothedirectimpactoftheevolutionoftheChangjiangEstuary,andthegrowthanddeclineandthedirectionofthesandybaratNanhuizuigivetracestothesedimenttransportbetweentheChangjiangEstuaryandtheHangzhouBay.ThetransportofsedimentfromtheChangjiangEstuarytotheHangzhouBayoccursmainlyinwinterandspringseasonsandtheincreaseoftheChangjiangRiverrunoffandthedecreaseofsedimentchargehavecausedscouringinthenortherncoastoftheHangzhouBayandtheseabederosionalongthefrontalmarginoftheChangjiangRiverDelta.
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