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【知识整合】河西走廊位于中国甘肃省西北部祁连山脉以北、合黎山和龙首山以南、乌鞘岭以西,因在黄河以西故名,又称甘肃走廊。其东西长约1000千米,南北宽窄各处不等,海拔一般在1100～1500米。大部为祁连山北麓冲积(洪积)扇构成的山前倾斜平原。扇形地上部多由砾石组成,很少利用。扇形地中下部,地面物质较细,大
[Knowledge Integration] Hexi Corridor is located in the north of the Qilian Mountains in the northwestern part of Gansu Province in China, south of Heili Mountain, south of Longshou Mountain, west of Wushaoling, and named after the Yellow River, also known as the Gansu Corridor. Its length is about 1000 kilometers, ranging from north to south and from north to south. The elevation is generally between 1,100 and 1,500 meters. Most of them are piedmont plains formed by alluvial (diluvial) fans in the northern Qilian Mountains. Most of the fan-shaped ground consists of gravel, rarely used. The lower part of the fan-shaped ground, the ground material is thin, large