Discussion on the stratigraphic genesis of the Song Dynasty ancient flooding event at Shuomen Ancient Port of Wenzhou
In 2022,the Shuomen Ancient Port site in Wenzhou was recognized as one of the top ten archaeological discoveries in China.This discovery provides new evidence for studying the historical environmental changes and man-land relationship in the lower reaches of the Oujiang River since 1700.In this study,three profiles and one core were collected for analysis,ranging from an elevation of 2.5m to-4.5m.According to the grain size of these sediments and the distribution of archaeological cultural layers,the whole site can be divided into four layers from bottom to top,with the second layer of interbedded sand and mud being particularly distinct and significantly different from the upper and lower sedimentary environments,indicating a distinct flood event layer.By combining the AMS14C calibrated ages of the sediments,the discovery of cultural layer remains and historical records,it is discovered that this flood event layer is closely related to an extreme flood disaster event that the Shuomen Ancient Port in Wenzhou suffered during the Song Dynasty.This study reconstructs the environmental changes and the process of ancient human response in the ancient port of Wenzhou during the transition from the Northern to the Southern Song Dynasty through the integration of stratigraphic analysis,cultural relic identification,and historical literature verification.The evolution may include four stages:ordinary trade activities,extreme disaster infestation,gradual environmental stabilization,and resumption of trade processes.
国家科技期刊平台
NSTL
万方数据
