A Study on Geographical Connotation of River Distances Recorded in Hanshu Dilizhi:Discussion on River Traffic in Han Dynasty
Hanshu Dilizhi records over a hundred river distances.These numbers are based on actual measurements with high accuracy.Limited by measurement conditions,the measurement of river distance need to rely on waterways,embankments,river valleys and other traffic roads during the Han Dynasty.River distance recorded in Hanshu Dilizhi represent the lengths of river sections used as transportation routes,rather than the entire length of the river.By utilizing statistics and analysis results of these numbers,this research reconstructs a waterway transportation network during the Han Dynasty,with four major rivers named Jiang,He,Huai,Yu,as main axes connecting with each other.Quantitative analysis can reveal the basic characteristics of that south river transportation capacity was superior than the north,and summarizes different traffic modes of four main river systems.
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