福建九龙江口历史台风的沉积地球化学记录

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中图分类号：F301.24;P901 文献标志码：A 文章编号：2095-1329（2026）01-0025-11

Geochemical characteristics of historical typhoon deposits in the Jiulong River Estuary， Fujian Province， China

XIA Tian，YU Fengling， ZHANG Muyi， ZHOU Yanren， GAO Ruixi’，LING Haiyi， YU Zhihao （1.CollegeofOceanandEarthciences，XiamenUniversity，Xiamen361o5，Fujian，ina; 2.ZhejiangHengdianApeloaImp.&Exp.Co.，Ltd.，Hangzhou31oooo，Hangzhou，China）

Abstract：TyphoonsposeaseriousthreattothesustainablesocioeconomicdevelopmentofthesoutheastercoastalregionsofChina. However，therelativelysorttimeframeofistrumetalrecodsmaksitdfcult toevealtelong-tepatesofstrongandsuper typhoons.Thisstudyimstoilegeologicalrecodstoinvestigatetesedimentarychracteristicsanduenecylesofistoical typhoonevents.FocusingontheJulongRiverEstuaryinFujian，acomprehensiveanalysisofgrainsizeorganiccarbonisotopes，nd geochemicalicatorauedodistocaltooecdtotifoposeetsltsae that：（1）Twostomsurgeevents （possiblycoespondingtoTyphoonNelsonin1985andTyphoonIrisin959）andonefoodevent （possiblycorespondingtoTphoonPamelain96l）wereidentifediteJore;Sediment grainsizorganiccarboisotopes， andelementalgeochemicalcharacteristicsareefectieindicatorsfoentifngtyphooneposits.Theresearchcofisthatstarie sedimentscanseveasaeliablearchiveforreconstructingcenteial-saletyphoonhistoryTheintegrateduseofultiplegeohmical indicatorscanefectivelyidentifytyphoondepositionlayersanddistinguishtheircauses（stomsurgeorfood）.Themethodologyand findingsofthisstudycanprovideascientifcbasisforpaletyphoonreconstructiontyphondisasterriskassessmentinthesouthaste coastal regions of China.

Keywords： typhoon deposit; geochemical characteristics; grain size; Jiulong River Estuary

台风是影响中国东南沿海最具破坏性的自然灾害之一，其灾害表现形式主要包括风暴潮与洪水。（剩余14485字）