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在北天山山前冲积扇扇缘和潜水溢出带以北,分布着一近东西向展布的冲积平原,这里地形平坦,微微向北倾斜,地形坡度为0.003-0.0001。发源于天山的乌鲁木齐、玛纳斯、奎屯等大河流,在冲积平原上蜿蜒向北流去,蛇曲发育,保存着宽阔的阶地。本区年降水量为150毫米左右。地下水愈往北愈深,地表非常干旱,植被凋零,呈现一片荒漠景观。
In the north of the former Tianshan alluvial fan margin and the spillover zone to the north of the distribution of a nearly east-west distribution of the alluvial plain where the flat topography, slightly tilted northward, the topography gradient of 0.003-0.0001. Originated in Tianshan Urumqi, Manas, Kuitun and other large rivers, meandering in the alluvial plain to the north meandering snake development, preservation of the broad terraces. The annual precipitation in this area is about 150 millimeters. The deeper the groundwater goes to the north, the surface is very arid and the vegetation is withered, showing a desert landscape.