材性改良研究　Ⅰ．X射线木材密度测定  

RESEARCH ON WOOD PROPERTIES IMPROVEMENT Ⅰ. MEASUREMENT OF WOOD DENSITY WITH X-RAY WOOD DENSITIOMETER

作　　者：阮锡根[1] 潘惠新[1] 李火根[1] 黄敏仁[1] 

机构地区：[1]南京林业大学杨树研究开发中心

出　　处：《林业科学》1995年第3期260-268,共9页Scientia Silvae Sinicae

基　　金："八五"国家科技攻关专题

摘　　要：利用Ｘ射线衍射仪（Ｄ－ｍａｘ３Ｂ型）改装成直接扫描式Ｘ射线木材密度计，可快速、高效测定水材密度组成，即水材平均密度，平均早材密度，平均晚材密度，最大木材密度，最小木材密度，木材密度梯度和木材密度的变异幅度，为材性改良提供了新手段。本文用Ｘ射线木材密度计测定１７个树种木材密度。The wood density of 17 species by means of modified wood densitiometer was first reported in China. The results showed that wood density components,such as average wood density, average earlywood density, average latewood density, the maximum wood density, the minimum wood density,the gradient of wood density and the variation range of wood density, can be measured rapidly and efficiently by direct scanning using X-ray wood densitiometer,which was successful been modified and reequiped on a set of X-ray diffractometer (Model D-max3B). This equipment and measurement method are strongly recommanded by the authors for its power in wood properties genetic improvement.

关 键 词：X射线木材密度计 木材密度组成 木材性状遗传改良 

分 类 号：S781.7[农业科学—木材科学与技术]