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中文摘要：
利用关中地区1971。1996年垂直水准资料、1993-2005年流动重力测量资料和1999。2004年GPS观测资料，研究了关中地区地壳形变场的时空变化特征。结果表明：1）研究区地壳形变场变化与活动断裂构造密切相关，临潼一长安断裂是近期非常活跃的断裂；2）地壳形变总体表现为渭河断陷盆地沉降、重力增加，秦岭山区隆起、重力减少；3）垂直形变、水平运动和重力场变化有较好的一致性，显示出该地区现今构造活动的继承性及东、西部地壳运动存在一定的差异；4）西安地区由于过量开采地下水，引起地层压密效应，造成地面急剧下沉与重力值急剧增加。
英文摘要：
Using the data of leveling during 1971 -1996,mobile gravity observations during 1993 - 2005, and GPS data during 1999 - 2004 in Guanzhong area, the space-time variation characteristics of the crust deformation of this area are studied. The result shows ： 1 ） The variations of the crustal deformation field are closely related to activity fault, Lintong-Chang＇ an fault is a active fault recently ; 2 ） In general, the crustal deformation shows that the Weihe basin subsides and the gravity increases, the Qinling Mountains region uplifts and the gravity reduces;3 ） Vertical deformation, horizontal movement and gravity variation is consistent well with each other, it shows that nowadays tectonic movement is successive, and there is a certain difference between the movements in the east and west of the studied region;4）In Xi~an area, because the groundwater has excessively been exploited, the pressdense effect of strata appears so that the ground subsides and the gravity value increases sharply.
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