兰州-西宁城市群国土空间演化特征及分区优化 |
罗君, 张学斌, 石培基 |
Spatial evolution characteristics and zoning optimization of Lanzhou-Xining urban agglomeration in the upper reaches of the Yellow River |
Jun Luo, Xuebin Zhang, Peiji Shi |
图3 兰西城市群国土空间标准差椭圆及重心分布 |
Fig.3 The standard deviation ellipse and gravity center distribution of territorial space of Lanzhou-Xining urban agglomeration |
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