黄河流域全新世古洪水研究进展及展望

Research progress of the Holocene paleoflood in the Yellow River basin and a future prospect

  • 摘要: 全新世古洪水研究能够弥补近现代洪水监测记录在时间和空间上的局限性,更加科学地查明洪灾规律及机制,已逐步成为当今全球变化研究的热点之一。黄河流域由于独特的地质地貌条件,历史时期以来洪灾频发、影响巨大,而且现今洪水风险依然很大,是我国古洪水研究的重点区域。本文围绕近十年来黄河流域全新世古洪水研究在沉积特征、古水文重建、年代框架及其与文明兴衰关系等方面的研究成果,综述了当前研究中面临的主要问题和发展趋势,认为应加强流域内不同地貌位置的古洪水研究,综合分析、交互验证,完善黄河流域全新世古洪水序列及年代框架,深入挖掘“区域气候背景-异常洪水事件-人类活动”之间的相互关系,为全球变化背景下黄河流域洪水预测、防治及风险评估等提供科学依据。

     

    Abstract: The study of Holocene paleoflood can remedy the limitation of modern flood monitoring records in time and space, and more scientifically identify the flooding regulations and mechanisms. It has gradually become one of the hotspots of the research of global changes. Due to the unique geological conditions in the Yellow River basin, floods have frequently happened in the Holocene history. The present flood risk is still very high in the basin, and therefore, it is one of the key areas of paleoflood research in China. This paper focuses on the research results of the paleoflood in the Yellow River basin published in the past ten years with special interests in sedimentary characteristics, hydrological reconstruction, chronological framework, and its relation to the rise and fall of civilization. Key problems and development trends of the current researches are also discussed, and it is suggested that the records of ancient floods at different geomorphologic locations in the basin should be further collected.

     

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