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The relationship between d.b.h. and surface area of foliage was investigated for an AKAMATSU (Pinus densiflora Sieb. et Zucc.) stand in northern Kyushu. The result obtained runs as follows: (TABLE) Ko...zlowski-Schumacher's formula for the surface area of a needle fascicle is shown to give the surface area of a long right circular cone, and the corresponding formula for a long elliptic paraboloid is derived from the general formula for a paraboloid standing on an elliptic base.続きを見る
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