新模型系统地论述了差异影响下个体城市自中心向外缘扩展的微观经济学机理。
The new model systematically studies the microeconomic dynamics of individual urban expansion to the margin areas under different impactions.
特别是在定量预测方面，从不同角度运用因素预测法、趋势外推法、CA模型法等三种方法对城市用地扩展进行估算。
Especially on the quantitative forecast aspect, forecast the urban land expansion by method of factor forecasting, method of trend extrapolating and method of ca model from different Angle.
SLEUTH模型是元胞自动机模型的一种具体实现，它包含了四种城市增长方式和五个增长系数，再加上两个控制因素层一起作用于输入数据，能够较好地模拟城市的扩展。
SLEUTH model is a kind of ca, it is composed by four growth rules and five coefficients, in conjunction with the excluded layer and the slope layer, it can successfully model the urbanization.
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