【摘要】 本文通过历史文献与考古资料综合考证出汉唐渭河三桥的位置,并以其与今天的渭河河道相对比,探讨了历史时期西安咸阳间渭水河道北移的时空特征。结论认为除汉西渭桥处的渭河基本没有侧蚀变动外,中渭桥、东渭桥两地的渭河都向北移动了较大距离,中渭桥处汉末至今1808年间渭河向北移动了3630米,平均每年北移2米左右;东渭桥处唐末至今1118年间渭河北移了2600余米,平均每年北移2.3米有余。影响渭河发生侧蚀北移的原因主要为新构造地质运动、水文特点与两岸土质等自然环境要素,而人为活动也起到了不应忽视的作用。更多还原

【Abstract】 Based on the historical documents and archeological materials,this paper conducts a comprehensively textual research on the location of the three bridges of the Weihe River in the Han Dynasty and the Tang Dynasty.Through a comparison with the today’s Weihe River,it discusses the temporal and spatial features of the northward move of the Weihe River between Xi’an City and Xianyang City in history.It concludes that the Medium-wei Bridge and the Eastern-wei Bridge of the Weihe River moved a lot northwards,but the Western-wei Bridge of the Weihe River had no change.The Medium-wei Bridge moved 3,630 meters northward with a speed of 2 meter per year during the Late Han Dynasty to1808.The Eastern-wei Bridge moved about 2,600 meters northwards with a speed of 2.3 meter per year during the late Tang Dynasty to the year 1118.Therefore,the neo-tectonic movement,hydrological and geological characteristics on both sides of the Weihe River have played a dominant role in the lateral erosion of the Weihe River,and human activities have also played a conspicuous role.更多还原