Abstract
Wind damage in forest resource caused by strong wind can be increased after tree thinning.In this study,effect on wind resistance of forest depending on tree arrangement and method of the thinning was investigated by model experiment in wind tunnel.Atmospheric boundary layer was generated in the wind tunnel by the circle cylinder grid and the screen.Drag act on a tree in the model forest was measured in two types of tree planting configuration which were in-line and staggered arrangements.The result shows that wind resistance of in-line arrangement was higher than that of staggered arrangement.In the case of staggered arrangement,drag act on a tree in forest increased depending on the conditions of the distance between trees and of the wind direction.
