This paper describes the snowdrift-preventing effect of a narrow forest, as examined by a wind tunnel experiment, using activated clay particles as model snow.
A narrow forest 3-4m in width is less expensive than a broad forest 20-50m in width which cost much for the planting and the maintenance. The most effective tree height, length and landscape of the narrow forest have not yet been examined precisely because it takes a long time beforethe forest grows to become effective in snowdrift prevention. Therefore, it is indispensable that a model is used to look into the effect of the forest on snowdrift prevention.
A modeling experiment was conducted in order to examine the effect of tree height, row and landscape of the forest on snowdrift prevention. As the result it was observed that two-tier forest with an interval at a distance 4 times the tree height between the tiers was the most effective in snowdrift prevention.
