Table 4.
A comparison of paddy rice planting area (×104 ha) at the levels of state farm among ETM+-, OLI-, and combined ETM+ and OLI-based paddy rice planting area maps, NLCD dataset, and official statistics.
| State farms | ETM+ | OLI | ETM+ and OLI | NLCD | Statistics |
|---|---|---|---|---|---|
| Qixing | 6.70 | 6.77 | 7.25 | 5.74 | 7.33 |
| Two nine zero | 3.01 | 3.83 | 4.21 | 1.88 | 3.60 |
| Erdaohe | 1.91 | 3.52 | 3.74 | 2.03 | 3.43 |
| Chuangye | 3.78 | 3.74 | 4.05 | 3.70 | 3.73 |
| Qianshao | 1.99 | 3.78 | 4.04 | 0.98 | 3.53 |
| Qianjin | 5.29 | 5.49 | 5.97 | 5.17 | 5.20 |
| Qianfeng | 5.26 | 6.45 | 7.11 | 3.11 | 6.73 |
| Qindeli | 5.40 | 5.76 | 6.37 | 1.64 | 4.70 |
| Daxing | 3.96 | 4.05 | 4.57 | 2.39 | 4.53 |
| Honghe | 4.12 | 4.25 | 4.65 | 3.60 | 4.07 |
| Nongjiang | 4.03 | 3.88 | 4.27 | 3.06 | 3.55 |
| Hongwei | 3.71 | 3.74 | 4.28 | 3.80 | 3.80 |
| Hongqiling | 1.44 | 1.46 | 1.68 | 1.48 | 1.47 |
| Shengli | 3.23 | 3.39 | 3.93 | 1.90 | 3.20 |
| Qinglongshan | 3.10 | 3.57 | 3.84 | 2.96 | 3.33 |
| Raohe | 1.52 | 2.04 | 2.42 | 1.36 | 1.93 |
| Yalvjiang | 2.99 | 3.15 | 3.41 | 1.63 | 2.87 |
| Total area | 61.43 | 68.87 | 75.79 | 46.43 | 67.03 |