林业科学
林業科學
임업과학
SCIENTIA SILVAE SINICAE
2010年
4期
166-170
,共5页
徐金梅%赵荣军%吕建雄%任海青%Robert Evans%Yang Junli
徐金梅%趙榮軍%呂建雄%任海青%Robert Evans%Yang Junli
서금매%조영군%려건웅%임해청%Robert Evans%Yang Junli
实心瓜多竹%微纤丝角%SilviScan-3%变异规律
實心瓜多竹%微纖絲角%SilviScan-3%變異規律
실심과다죽%미섬사각%SilviScan-3%변이규률
Guadua amplexifolia%microfibril angle%SilviScan-3%variation实心瓜多竹(Guadua amplexifolia)隶属于瓜多竹属(Guadua),丛生,是南美洲主要栽培竹种之一,广泛分布于哥伦比亚、厄瓜多尔、巴西、阿根廷等国,竹材基部实心,高25 m,径15 cm左右,是较好的建筑用原料,耐短期零
To investigate the microfibril angle (MFA) variation with respect to positions along longitudinal direction (bottom, middle and top of culm) and radial direction (from inner part to outer part of culm wall) of Guadua amplexifolia, MFA was measured by SilviScan-3 and X' Pert Pro (XRD).There was no significant difference between MFA measured by SilviScan-3 and XRD.Simple coefficient of correlation was 0.84.The mean MFA measured by SilviScan-3 and XRD were 8.2° and 8.8° respectively, and varied from 6.2° to 17.8° and from 6.9° to 12.2°.Compared with XRD, SilviScan-3 provided a continuous and more rapid method for determining MFA variation in bamboo culm.According to results of SilviScan-3, MFA in bottom was higher than that of in middle which was higher than that of in top of culm.Maximum MFA occur in inner layer, MFA decreased rapidly from inner layer to 2 mm, and fluctuated stably from 2 to 6.5 mm, and then increased subtly from 6.5 mm to outer layer.The radial tendency of MFA in the bottom was similar to that in middle and top of culm.
