The purpose of the paper is to analyze characteristics of urban land expansion and regional discrepancy, and to examine the main driving mechanism of urban land use change.
利用长沙市区近十年土地利用变更数据，分析长沙市区建设用地扩张存在的问题、根源及其解决途径。
As the technical key of planning tusk, to controlling urban land use and its change can possibly have special influences to urban society and economy.
作为规划工作的技术要点，控制城市土地使用及其变化可能间接对城市社会与经济产生特殊影响。
The process and characteristics of urban expansion are analyzed using fractal dimension and compactness based spatial morphologic measurement coupled with land use change survey.
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。
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