Textual Research of Sandstorm Disasters in Historical Periods Recorded in Sedimentary Records in the Upstream of Huaihe River Basin
The aeolian loess in the Huaihe River basin provides a new window for studying sandstorm disasters in the Huang-Huai Plain during historical periods.Compared with the disaster text records in historical materials,the information provided by aeolian loess is more original and objective.The aeolian loess layers in the sedimentary profiles of the upper reaches of the Huaihe River have good constraints of optically stimulated luminescence dating and a good research foundation.This study takes the aeolian loess layers in the Luzhuang section as the research object,combines with the historical disaster records in the corresponding historical period,and conducts textual research on sandstorm disasters in historical periods from the perspectives of geology and disaster history.The results show that the sandstorm disasters recorded in the sedimentary records of the upstream of the Huaihe River may be caused by the continuous accumulation of near-source sandstorms triggered by the wind disasters in Yingchuan Prefecture in March of the second year of the Yuanchu era(115 AD)and in the spring of the second year of the Yanguang era(123 AD)of the Eastern Han Dynasty,and in Zhengyang County in November of the fifth year of Yixi(409 AD)in the late Eastern Jin Dynasty.According to the climate proxy indicators and historical documents of the same period,the middle of the Eastern Han Dynasty(115-123 AD)and the late Eastern Jin Dynasty(409 AD)were in a period of rapid climate fluctuations,and the sandstorm disasters on the north bank of the Huaihe River may be the instantaneous response to the abnormal and changeable climate at that time.The results of this study can provide a new perspective and scientific basis for the study of disaster history in the Huaihe River basin.
sandstorm disastersedimentary recordhistorical periodtextual researchHuaihe River basin
万方数据
维普
