Study on the change and driving mechanisms of cultivated land in Qingdao

The paper discussed the change process of cultivated land and spatial difference in Qingdao city nearly 60 years according to the statistical data. By means of the social economic statistical software - SPSS18.0, the paper studied the driving forces on the cultivated land changes of Qingdao using Principal Component Analysis (PCA). The results indicated that the change of cultivated land was influenced by economic developments, social system pressure, urbanization level and agricultural science and technology. The conclusions could provide the foundation and reference for protection the existing cultivated land scientifically and effectively in Qingdao.