云南松抚育间伐材物理力学性质的初步研究  

A Preliminary Study on the Physico-Mechanical Properties of Immature Pinus yunnanensis in Kunming

作　　者：邱坚[1] 肖绍琼[1] 木乔英[1] 

机构地区：[1]西南林学院林业工程学院,云南昆明650224

出　　处：《西南林学院学报》2000年第1期58-60,共3页Journal of Southwest Forestry College

基　　金：西南林学院科研基金

摘　　要：对云南松抚育间伐材的物理力学性质进行测试 ,并与云南松成熟材物理力学性质进行比较 ,结果是 :在人工混交林中抚育间伐材材性较成熟材均有所下降 ,但其抗弯强度、抗弯弹性模量、顺纹抗压强度 3项主要力学性质及冲击韧性、硬度等下降幅度不大 ,对云南松抚育间伐材可大量利用 .This paper reported the physico mechanical properties of immature Pinus yunnanensis Franch grown in Kunming compared with the physico mechanical properties of mature Pinus yunnanensis .According to test results.Most of physico mechnical properties of immature Pinus yunnanensis had reduction compared with mature Pinus yunnanensis, while its compression parallel to grain,the bending strength and the modulus of elasticity to grain which were main properties of wood had little differences in physico mechnical properties.Since the toughness and hardness of the timber showed little difference between the two kinds of timber,full use of the timber from intermediate cutting operation of immature Pinus yunnanensis could be made as well.

关 键 词：云南松 抚育间伐材 成熟材 物理性质 力学强度 

分 类 号：S791.257[农业科学—林木遗传育种] S781.2[农业科学—林学]