Optimum Tapping Size and Number for Sap Collection of Acer mono
2006
Moon, H.S. (Gyeongsang National University, Jinju, Republic of Korea), E-mail: [email protected] | Kwon, S.D. (Korea Forest Research Institute, Seoul, Republic of Korea)
Optimum tapping size and number for sap collection were investigated to minimize damage on tree growth and secure resources for sap by sap collection of Acer mono. The amounts of sap collected by tapping size of 12 mm, 10 mm and 8 mm was 189 L, 140 L and 193 L, respectively. Fusion rates by tapping size were 100% for 8 mm, 89% for 10 mm and 85% for 12 mm, respectively. Amount of sap by size and number of tapping were much at three, two and three tappings to small, middle and large diameter tree in case of 8 mm tapping, and it was large in quantity at two tappings of 12 mm tapping to large diameter tree, respectively.
显示更多 [+] 显示较少 [-]