Table 7. Changes of ecological corridor length before and after resistance surface correction in Beijing–Tianjin–Hebei urban agglomeration.
| Cities | Ecological corridor length (km) | Ecological corridor length (km) (Ecological services, human disturbance) | Variation of length of ecological corridor (km) |
|---|---|---|---|
| Beijing | 451.56 | 340.51 | 111.05 |
| Qinhuangdao | 194.61 | 200 | 5.39 |
| Chengde | 581.49 | 657.57 | 76.08 |
| Zhangjiakou | 961.83 | 996.24 | 34.41 |
| Baoding | 1,088.64 | 1,148.05 | 59.41 |
| Tianjin | 887.56 | 1,145.76 | 258.2 |
| Tangshan | 723.53 | 966.85 | 243.32 |
| Langfang | 272.36 | 332.85 | 60.49 |
| Shijiazhuang | 1,727.98 | 1,752.52 | 24.54 |
| Cangzhou | 371.11 | 507.12 | 136.01 |
| Hengshui | 260.15 | 297.73 | 37.58 |
| Xingtai | 818.62 | 915.7 | 97.08 |
| Handan | 171.66 | 137.99 | 33.67 |