湖泊科学2017,Vol.29Issue(1):234-245,12.DOI:10.18307/2017.0125
黄河龙门段商周转折时期的古洪水事件及气候背景∗
Palaeoflood events and climate change at the turning time from the Shang to Zhou Dy-nasty in the Longmen reach of the Yellow River
摘要
Abstract
Palaeoflood slackwater deposits (SWD) of the Holocene and paleoflood indicators were interbeddedly found within the cliff riverbanks at Xianghanqiao profile in the Longmen reach of the Yellow River. Paleoflood SWD was identified by a variety of sedimentological criteria during field investigations and laboratory analysis. A set of four SWD records four paleoflood events indi-vidually. These slackwater deposits recorded the extraodinary floods happened between 3200-2800 a B.P. on the Yellow River, by using Optically Stimulated Luminescence dating method in combination with pedostratigraphy correlations. This indicated that the extraordinary floods happened during the dynasties from the Shang to the Western Zhou in Chinese history. The flooding peak stages were estimated with the sediment concentration and the depositional depths of the SWD. The estimated results indicated that the pa-leoflood peak discharges were between 46280 and 48800 m3 / s by using HEC-RAS model. The results provided an important basis for this regional flood control and disaster mitigation project, water resource management, and comprehensive treatment of the eco-logical environment.关键词
古洪水/商末/滞流沉积物/水文学/黄河Key words
Paleoflood/Shang dynasty/slackwater deposits/hydrology/Yellow River引用本文复制引用
石彬楠,黄春长,庞奖励,查小春,周亚利,张玉柱,刘雯瑾..黄河龙门段商周转折时期的古洪水事件及气候背景∗[J].湖泊科学,2017,29(1):234-245,12.基金项目
国家自然科学基金项目(41471071)资助 ()