黄河流域地级城市土地集约利用效率与生态福利绩效的耦合性分析

徐维祥, 徐志雄, 刘程军

Coupling analysis of land intensive use efficiency and ecological well-being performance of cities in the Yellow River Basin

XU Wei-xiang, XU Zhi-xiong, LIU Cheng-jun

表5 标准差椭圆结果分析

Table 5 The results of standard deviation ellipse analysis

年份 椭圆面积/km2 椭圆周长/km 重心经度/°E 重心纬度°N X轴标准差 Y轴标准差 旋转角/(°) 2008 536065.155 2702.850 111.155 36.812 326.676 522.372 88.170 2012 533069.369 2693.108 111.144 36.828 326.544 519.663 88.180 2017 532596.370 2697.379 111.123 36.799 324.456 522.544 87.766