Table 1 Classification system and interpretation signs of Alar reclamation area.
Type | Surface features | Image features |
|---|---|---|
Farmland | Cotton Orchard lands, wheat Orchard lands, corn Orchard lands, sorghum Orchard lands, etc. | Light green, regular in shape, usually long and evenly distributed |
Forest and grass land | Populus euphratica forest, Natural Natural Grassland, tamarisk, etc. | Yellow or dark yellow, irregular in shape, generally distributed on both sides of rivers, roads, and remote areas |
Orchard land | Apple Orchard lands, date Orchard lands, grape Orchard lands, pear Orchard lands, etc. | Yellow, relatively regular in shape, mostly rectangular in shape, with clear boundary lines and continuous distribution |
Water body | Rivers, ditches, reservoirs, etc. | White or light purple, regular in shape, with clear boundary lines |
Construction land | Urban areas, schools, squares, industrial land, etc. | Gray or dark purple, regular in shape, often surrounded by regular roadside trees with clear boundary lines, distributed in contiguous areas |
Unused land | Wetlands, bare stones, saline alkali land, sandy land, etc. | Gray or dark purple, irregular in shape, mostly distributed in remote areas |
