银杏木材微纤丝角及其与生长轮密度相关模型的建立  

Study on Wood Microfibril Angle and the Correlation Models with Growth Ring Density of Ginkgo

作　　者：费本华[1] 江泽慧[1] 阮锡根[2] 

机构地区：[1]中国林科院,北京100091 [2]南京林业大学,南京210037

出　　处：《木材工业》2000年第3期13-15,共3页China Wood Industry

基　　金：林业攀登计划"人工林木材性质形成及功能性改良机理研究"课题

摘　　要：通过对银杏木材微纤丝角的径向变化及其与生长轮密度相关性质的研究 ,结果表明 ,银杏木材平均微纤丝角为 1 8.5°,生长轮内早材微纤丝角较大 ,晚材较小 ;生长轮间沿径向呈减小趋势。木材微纤丝角与生长轮年龄、生长轮宽度、生长轮密度之间有较密切关系 ,建立了 5个相关模型 。In this paper, the microfibril angle and growth ring density of Ginkgo ( Ginkgo biloba ) wood were studied. The results showed that the microfibril angle of Ginkgo was 18.5°, the variation trend was bigger in earlywood than latewood with inter ring while the trend was regularly decreased from pith to bark with intra ring. There was close relation among microfibril angle and cambium year and ring density, five models were established. The results of the study will be helpful to the cultivation and utilization of Ginkgo plantations.

关 键 词：银杏 木材微纤丝角 生长轮密度 相关模型 

分 类 号：S792.95[农业科学—林木遗传育种] S781[农业科学—林学]