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 3
Statistical table of Huaihe Basin’s top three out-degree cities.
| | Name | Province | Prefecture- level City | In-degree | Out-degree | | 2006 | 2010 | 2014 | 2006 | 2010 | 2014 |
| | Xuzhou | Jiangsu | / | 68.3 | 135.5 | 242.7 | 436.1 | 839.3 | 1373.6 | | Zhengzhou | Henan | / | 57.4 | 114.9 | 211.6 | 340.9 | 749.9 | 1308.6 | | Huaibei | Anhui | / | 130.6 | 279.9 | 480.5 | 279.0 | 589.1 | 945.5 |
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