The GeoEye image was classified according to stand age, crown closure, and tree species. By using the digitized stand map, stand ages were categorized into four classes: a-ab-b, bc, c-cd-d, and all other areas (areas that do not belong to a stand age, e.g., forest soil, residential, agriculture, etc.). In terms of stand progress, trees with diameters ranging from 1.30 to 7.9 cm are classified as , those with diameters ranging from 8 to 19.9 cm are classified as pole and , those with diameters ranging from 20 to 35.9 cm are classified as , and those with diameters are classified as . Crown closure was categorized into three groups: 0 to 1, 2, and 3. Crown closures ; 11 to ; 41 to ; and 71 to .