【摘要】 北城滩古城是黄河上游的重要古代城址。在实地踏查的基础上，采用遥感分析手段，整合不同尺度的时空信息，对北城滩古城的规模和形制进行了初步复原，绘制了平面复原图，并探讨了遗址保存情况的演变过程及动因。结果表明：20世纪70年代以前，遗址主要受自然风侵雨蚀影响，整体形制保存完整；此后数十年内，受人口增长和农田建设影响，遗址的保存情况发生了重大变化；20世纪90年代至今，因文物保护力度的加大，遗址保存情况基本无变化；在历史影像上成功识别出已近消失的古代城址——发裕堡和大芦塘古城。研究成果表明遥感技术在古代城址的考古研究、文物保护、展示中的应用具有重要意义。更多还原

【Abstract】 Beichengtan is an important ancient city in the upper reaches of the Yellow River. On the basis of fieldwork, this paper adopts remote sensing analyses and integrates spatial and temporal information at different scales to carry out a preliminary restoration of the scale and form of the ancient city of Beichengtan, explores the evolution of the preservation of the Beichengtan and the motivating factors. The results of the study show that: Firstly, before the 1970 s, Beichengtan was mainly affected by natural wind erosion and rain erosion, and the overall form was well preserved. Secondly, in the following decades, the preservation of Beichengtan changed significantly due to the impact of population growth and the construction of farmland. And thirdly, the preservation of the site has remained basically unchanged due to the increase in the protection of cultural relics from the 1990 s to the present day. Meanwhile, this study has successfully identified the nearly disappeared ancient city sites, Fayu Fort and Dalutang Ancient City, on remote sensing images. The results of this research show the significance of the application of remote sensing in the archaeological research, cultural relics protection, display and use of ancient city sites.更多还原