姚江河谷竹山湾遗址中全新世环境演变和极端事件沉积记录识别

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中图分类号：P531 文献标志码：A 文章编号：2095-1329（2026）01-0056-09

doi：10.3969/j.issn.2095-1329.2026.01.007

Identification of Mid-Holocene environmental evolution and sedimentary records of extreme events at the Zhushanwan Site in the Yaojiang River Valley

CHEN Boyang'，BU Hanwe， WANG Zhanghua，LEI Shao，LINFangyou， ZHENG Xiangqi'，XU Hao'

（1.DepartmentofographndSatialforationehiques，NingboUvesityNingbo5211，Zhejngin;

2. Ningbo Municipal Institute ofCultural Relics and Archaeology，Ningbo 315ooo，Zhejiang，China;

3.StateKeyLboratoryofstuarineandCoastalesearch，EastChinaNormal Uversityanghai4ina;

4.Donghai Academy，NingboUniversity，Ningbo315211，Zhejiang，China）

Abstract：TheYaojiangRiver VallyPlainonthesouthemcoastofHangzhouBaynurturedthesplendidHemudu Culture，andthis area ishighlysensitivetoclimateandsealevelfuctuations.HowtheNeolithicinhabitantsadaptedtothisvulnerableenvironmentisahot issueinenvironmentalarchaeologyTakingtheZushanwanSiteexcavatedintheortheasterpartofheYaojangRiverValyPlain as the research object， this paper conducted AMS14C dating，grain size analysis，and geochemical element analysis to try to reconstruct thepaleoenvironmentalevolutionandidentifysedimentaryrecordsofextremeevents.TheresultsshowthatduringthelateHemudu Cultureperiod，thesiteareawasalwaysacoastaltidalwetlandevironment，withtopographyslopngdistictlydownwardfroorth to south.Thestratainthelow-lyingareainthesouthempartofthesiterecordtwophasesoffuvialfodingeventsaccompanedby seawaterntrusionduring5.2～4.9cal.kaBP，whichshouldberaiddepositsduringtyphoonevents.TheNeolithicinhabitantsutilized thepaleotopoaphyandsetledinareaswithghtlyhigherelevatio，eflectingtheirfexibleadaptabilitytotecoastallowlnd environment.However，atthendofteHemuduCulture，thenorthareofteitealsosufeedbvioussawaterrusioading to the abandonment of the settlement.

Keywords： coastal lowlands; river flooding; marine intrusion; typhoon; Hemudu Culture

海岸带低地由于地势低平，且受陆海交互作用影响，历来是自然灾害的高发区，在遭受极端天气事件冲击时具有明显的脆弱性[1-3]。（剩余14116字）