옻나무 우죽의 수피생산량 분석

Abstract

This study was conducted to investigate the bark production from a top branch(Woojuk)of lacquer tree(Rhus verniciflua) that collected Rhus lacquer in summer, analyzing arelationship between several factors diameter, tree weight, weight of Woojuk and bark.The weight of Woojuk averaged was made up 48% of the tree on average. As the weight ofthe tree increased, however, the Woojuk showed the rising trend. It was turned out that thetree size for making 1kg of dry bark must be at least DBH 8cm. The result on Woojuk'sbark was that 43.3% of total trees produced a green bark of 1.1kg to 1.5kg, and most ofthem put out 1.5kg and less. Also the rate of trees to make 0.6kg to 1.0kg of dry bark washighest in 50.8%, but its production in most trees was 1.0kg and below. As the moisturecontent of a green bark averaged 39%, it is estimated that the production of 1kg in dry barkrequires at least 6kg of top branch in lacquer tree.