基于1970年至2006年的水准观测资料,以高差变化速率为观测值、观测点速率为未知参数的最小二乘整体网平差方法获取了西秦岭地区长期地壳垂直运动速度场图像.结果表明:相对宝鸡基岩点(陇褒17),六盘山周围地区表现为明显的隆升态势,隆升速率达2～3 mm/a;兰州地区整体呈现下沉趋势,下沉速率为1.5 mm/a.%On the basis of 1970-2006 leveling observations, we obtain the vertical velocity field of the west Qinling tectonic belt with the method of the least square adjustment. The results show that Liupanshan and its surrounding areas are rising with the rate 2-3 mm/a relative to Baoji benchmark ( Longbaol7 ) and the nearby Lanzhou basin area shows a subsidence trend, with the average rate 1.5 mm/a.
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