选用分维数和紧凑度作为城市形态指数，与城市土地利用变化相结合研究城市扩展的过程和特征。
The process and characteristics of urban expansion are analyzed using fractal dimension and compactness based spatial morphologic measurement coupled with land use change survey.
城市形态指数与土地利用变化指标有很好的互补性，两者结合可以更充分描述城市扩展的特征和过程。
The metrics of urban morphology and urban land use are compulsory to each other which can be used to satisfactorily describe the process and characteristics of urban expansion.
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