甘肃省敦煌公路管理段地处河西走廊的最西端,养护着557公里的公路,其中大部分路段处在戈壁沙滩,尤其是G215线189K～202K路段沿河道从沙山中穿越而过,公路两侧沙山连绵不断,南北长约20公里,东西宽约5公里,经常出现风沙掩埋路基、路面的现象。近20年来,敦煌段采取了平铺卵石、栽埋草方格、设置防风栅栏等一系列积极有效的工程防沙治沙措施。 The administrative section of Dunhuang Highway in Gansu Province is located on the westernmost end of the Hexi Corridor and maintains 557 kilometers of roads. Most of the sections are at Gobi Desert, especially the sections 189K-202K along the G215 line, Side of the sand hills continuous, north and south about 20 km, 5 km wide east-west, often sandstorm embankment, pavement phenomenon. In the recent 20 years, Dunhuang has taken a series of active and effective measures to prevent and control desertification by using such measures as laying cobblestones, planting grass squares, and setting wind fences.