城市空间增长与人口密度变化之间的关联关系 |
赵睿, 焦利民, 许刚, 徐智邦, 董婷 |
The relationship between urban spatial growth and population density change |
ZHAO Rui, JIAO Limin, XU Gang, XU Zhibang, DONG Ting |
图4 不同圈层内城市不透水表面密度随到城市中心的空间变化及反S函数拟合曲线 |
Fig. 4 The spatial variation of impervious surface density in different circles with the distance to city center and the curve fitted by inverse S function |
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