Research Article
Spatial Pattern and Evolution of Urban System Based on Gravity Model and Whole Network Analysis in the Huaihe River Basin of China
Table 4
Statistical table of several cities of the HRB.
| | Name | Province | Prefecture- level City | In-degree | Out-degree | | 2006 | 2010 | 2014 | 2006 | 2010 | 2014 |
| | Xuchangxian | Henan | Xuchang | 178.6 | 402.1 | 300.3 | 197.8 | 324.6 | 695.8 | | Xuchang | Henan | / | 187.7 | 322.9 | 238.2 | 145.1 | 353.4 | 445.8 | | Xiangcheng | Henan | Zhoukou | 63.1 | 122.2 | 227.8 | 92.4 | 157.4 | 225.8 | | Zhoukou | Henan | / | 54.6 | 106.9 | 179.2 | 47.1 | 85.1 | 161.7 |
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