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芬兰的航空摄影由土地经营局和空军地形团施实。土地经营局的航空摄影由于用成对的摄影机,可同时拍摄1∶22,000和1∶30,000的全色片,每年拍摄1.4百万公顷。地形团拍摄比例尺1∶60,000(航高9.5公里)的航空像片,每年拍摄1千万公顷。几乎只借助航空摄影进行森林制图。芬兰的森林图不象端典,没有地形。航空像片广泛用于森林资源清查。但通过航空像片判读进行森林资源清查时,必须有地面工作的保证和在样地上进行验证。如果判读
Aerial photography in Finland is implemented by the Land Management Board and the Air Force Terrain Group. Aerial photography by the Land Management Agency Using paired cameras, it is possible to photograph 1: 22,000 and 1: 30,000 full-color films simultaneously and shoot 1.4 million hectares annually. The mission took aerial photographs of a scale 1:60,000 (9.5-mile elevation) and took 10 million hectares annually. Forest mapping is done almost exclusively with aerial photography. Finland’s forest map is not typical, there is no terrain. Aerial photos are widely used in forest inventory. However, when carrying out inventory of forest resources through interpretation of aerial photographs, there must be assurance of ground work and verification on plots. If you read