木材材色与森林地理分布的关系

THE RELATION BETWEEN WOOD COLOUR AND FOREST GEOGRAPHIC DISTRIBUTION

利用文献[1]中对树种的材色和地理分布的描述记载,采用分级数量化统计的方法,探讨了世界性大区域森林地理分布对木材材色的影响。其结果为:①木材树种群的材色受地理分布的影响。在地理分布因子中,纬度是主要的影响因子,经度因子对材色无显著影响;②纬度对树种群材色的影响作用表现为:低纬度区域的树种群深材色树种占百分比较大,浅材色树种较少。随着纬度的增加,浅材色树种逐渐减少,深材色树种逐渐增加;③针叶树材和阔叶树材树种群材色级别的分布特征有一定的区别。阔叶树材树种群中深材色树种所占有的百分比明显高于针叶树材树种群。

In this paper, according to the data of reference the method of gradation quantity statistics was adopted and the effect of the forest geographic distribution on wood colour was discussed. The result indicated that:1. The wood colour was influenced by forest geographic distribution. Among the factors of the geographic distribution, the latitude was the main factor, and the longitude was not main factor.2. The effect of latitude on the wood colour of trees indicated: In the area of low latitude, the percent of dark wood colour was more than that of light wood colour, With the latitude increasing, the light wood colour trees decreased. and the dark wood colour trees increased.3. The grade distrbution of wood colour has defference for soft wood and hard wood. The ratio of the dark colour of hard wood in number is more than that of soft wood.