摘要
研究了 5种造林密度 ,15年生马尾松生长轮特性 ,包括生长轮宽度 ,晚材率和管胞列数及其径向变异规律。结果表明 :造林密度对马尾松生长轮宽度 ,晚材率和管胞列数的影响较大 ,经方差分析达到统计学的显著水平。造林密度与生长轮宽度和管胞列数成反相关关系 ,与晚材率成正相关关系。同时 ,年龄对生长轮宽度、晚材率和管胞列数的影响亦显著 ,且符合一般规律 [1、2 ] 。但不同造林密度生长轮特性差异显著程度不同。较低和较高的造林密度各生长轮宽度和晚材率差异未达到显著水平。
This paper studied the feature of growth ring including the growth ring width,propertion of late wood and tracheid row and their variance regulanty for 15 years Masson Pine plantions with 5 different planting density The results show that the planting density greatly affect the growth ring width,propertion of late wood and tracheid row through variance analysis Planting density is negative correlation with the growth ring width and tracheid row,and is positve correlation with the propertion of late wood Meanwhile age also greatly affect the growth ring width,propertion of late wood and tracheid row which same as the common law The feature of the growth ring of different planting density differ in lever of significance which are smaller as planting density too small or too dense,but tracheid row decreased rapidly with their age
出处
《贵州林业科技》
2000年第2期1-4,共4页
Guizhou Forestry Science and Technology
基金
国家"九五"重点攻关专题!"马尾松优质纸浆用材树种良种选育技术及培育技术研究项目资助
贵州大学科学基金项目!"主要营林措施对马尾
关键词
马尾松
造林密度
生长轮特性
径向变异
材性
Masson pine,Planting density,The feature of growth ring,Growth ring width,Propertion of late wood,Tracheid row
