Research Article
Response Patterns of Vegetation Phenology along Urban-Rural Gradients in Urban Areas of Different Sizes
Table 2
Accuracy validation results for the built-up areas.
| | | 2001 | 2005 | 2010 | 2015 | 2018 |
| | Nighttime light data (km2) | 1298.51 | 1415.00 | 1646.00 | 1953.00 | 2219.00 | | China City Statistical Yearbook (km2) | 1270.28 | 1473.62 | 1542.91 | 1935.91 | 2192.94 | | Error (km2) | 28.23 | –58.62 | 103.09 | 17.09 | 26.06 | | Error rate (%) | 2.17 | –4.14 | 6.26 | 0.88 | 1.17 |
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