Research Article
A Detailed and High-Resolution Land Use and Land Cover Change Analysis over the Past 16 Years in the Horqin Sandy Land, Inner Mongolia
Table 2
LULC classification system and the number of training data (polygons/pixels) used in the research.
| | First level classes | Second level classes | Training data: number of polygons (pixels) | | 2000 | 2009 | 2015 |
| | Cropland | Paddy | 18 (3641) | 21 (2969) | 17 (3684) | | Dry land | 43 (7489) | 57 (9793) | 64 (10792) | | Irrigation land | 35 (3919) | 51 (4643) | 57 (7686) |
| | Woodland | Forest | 50 (4113) | 39 (4347) | 52 (7150) | | Shrub | 29 (2852) | 30 (8171) | 27 (6396) | | Other forests | 26 (4194) | 27 (3969) | 31 (5370) |
| | Grassland | Dense grass | 34 (5085) | 31 (3573) | 29 (5936) | | Moderate grass | 32 (3005) | 32 (3005) | 26 (5933) | | Sparse grass | 33 (2369) | 34 (2671) | 35 (8244) |
| | Water body | Rivers and lakes | 24 (5379) | 18 (4682) | 21 (6118) | | Tidal | 20 (1181) | 19 (1340) | 25 (1835) |
| | Built-up land | Urban built-up | 15 (1877) | 10 (3312) | 10 (4385) | | Rural settlements | 40 (3846) | 37 (3527) | 40 (4548) |
| | Unused land | Sandy land | 31 (7993) | 31 (9423) | 46 (16651) | | Salina | 22 (3121) | 22 (3121) | 19 (2913) | | Swampland | 11 (1588) | 9 (560) | 5 (742) | | Bare | 43 (1837) | 50 (3283) | 37 (3909) |
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