历史时期扬州城址变迁的遥感考古研究

Study on the Vicissitude of Yangzhou City Site Based on Remote Sensing Archaeology

对扬州市的SPOT5数据进行几何精校正,选取1、2、3波段进行假彩色合成并与全色波段融合,根据不同地物的影像特征以及重要遗址点的GPS定位数据,结合相关历史文献和考古资料,对SPOT5图像进行目视解译,绘制出自春秋建城以来不同历史时期扬州城址的解译图以及长江、运河河道的变迁图,分析扬州城址变迁的规律和原因.古邗城在建立之初就是一个为了争霸中原、开邗沟所设立的屯粮驻兵之地,所以近2500年以来扬州城址的变迁除与其他城市一样受政治、经济、军事、地理、环境等诸多因素的影响外,更受长江、运河河道的南移和军事战争频发这两个因素的制约.以隋唐时期为界,隋唐之前城址的变迁以前者的影响为主,隋唐之后以后者的影响为主.

Combined with literature and archaeological data,we interpret the image of remote sensing visually,draw the interpreted images of Yangzhou city site in different historical period,which has been constructed since Spring and Autumn Period,and analyse the rules and reasons of the vicissitude of Yangzhou city sites.The ancient han city is a place to station the army and store up grain,whose establishment is for the hegemony of the area south of Yellow River and is to dig the han ditch.The vicissitude of Yangzhou city site is influenced mainly by those two factors since nearly 2500 years：（1）The course of the Grand Canal and Yangtze River move to the south;（2） The military war occurs frequently.Taking the Sui and Tang dynasties time as the boundary,before that the former is the primary influence and after that the latter is the primary influence.