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位于丝绸之路上的甘肃省,是我国也是世界上少有的古城遗址集中分布的区域。由于省境大部分地区气候干燥,降水少,地表文物少受雨雪、地下水、盐碱等的侵蚀,人为活动的破坏也相应轻微,从而保存下来了各个历史时期的不同等第、规格、形制、规模的大量古城址。据不完全统计,仅汉唐时期的城址就有160余座,尤以河西走廊为多,至于宋代以迄明清的城寨堡邑、关铺驿递等,则为数更众。
Gansu Province, located on the Silk Road, is a concentrated area of ancient ruins in our country and the world. Due to the dry climate and less precipitation in most parts of the province, the surface cultural relics are less eroded by rain, snow, groundwater, salt and alkali, and the destruction of human activities is correspondingly minor, thus preserving the different rankings, specifications and forms in various historical periods , A large number of ancient city site. According to incomplete statistics, there are more than 160 sites in the Han and Tang dynasties, especially the Hexi Corridor. As for the Song Dynasty, there are more cities and towns such as Chengzhai Fortress and Guanpu Yidi.