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古水系既是历史地理学研究的范畴,也是河床演变学的一个重要组成部分。它主要研究人类历史时期水系的形成与演变,江道的迁徙与改道,洲滩的消亡与淤长,水文泥沙、洪枯水位的变化,以及人类对水系的开发利用。古水系研究对于兴建大型水利工程、进行河势规划、发展农田灌溉、合理布置护岸工程、疏浚航道和修建港口码头等等,都具有重要意义。近年来,古水系的研究异常活跃,在出版的各种历史地理专著和期刊上占有重要位置。如《中目自然地理、历史自然地理》一书,全面论述了我国黄河、长江、海河、珠江、辽河、塔里木河的水系变迁;史念海近著《河山集》(二集),主要论述了黄河流域和黄土高原的自然变迁;《复
The ancient water system is not only a category of historical geography, but also an important part of riverbed evolution. It mainly studies the formation and evolution of water systems in human history, the migration and diversion of rivers, the demise and siltation of beaches and the changes of hydrological sediment and flood and water levels, and the development and utilization of water systems by human beings. The study of paleo-water systems is of great significance to the construction of large-scale water conservancy projects, the planning of river regimes, the development of farmland irrigation, the rational arrangement of revetments, the dredging of waterways and the construction of port terminals. In recent years, the research of paleo-water systems has been very active and occupies an important position in various published historical and geographical monographs and periodicals. Such as Zhongmu Natural Geography and Historical Natural Geography, comprehensively expounds the changes of water system in the Yellow River, the Yangtze River, the Haihe River, the Pearl River, the Liaohe River and the Tarim River in China; Shi Nianhai is closely related to the “He Shan Mountain” (Part Two) And the natural changes of the Loess Plateau; "complex