Abstract
This study tried to generalize the transitional meaning and collect fundamental data of visual perception of trees by the differences of distances. The investigations were made by 251 persons who observed each of four alone trees (Magnolia kobus, two Cinnamomum camphora, Pinus thunbergii) in the open spaces of parks. The changing points of the trees were observed according to the relationship between the size of leaves and the visual sense, and between the size of trees and the visual sense. Due to the differece between the object trees and the distances, the differences of the five categories of senses can be identified within 200m-wide spaces, which are approximately 1) 200-60m, 2) 120-36m, 3) 36-12m, 4) 12-2m, and 5) 2-0m.
