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›› 1989, Vol. 25 ›› Issue (6): 583-587.

• 研究简报 • 上一篇    

山杨小径木超微结构及其与干燥皱缩的关系

彭海源 丁汉喜   

  1. 东北林业大学
  • 收稿日期:1988-07-29 修回日期:1900-01-01 出版日期:1989-11-25 发布日期:1989-11-25

THE RELATIONSHIP BETWEEN THE ULTRASTRUCTURE AND OCCURREANCE OF DRYING COLLAPSE IN THE WOOD FROM THINNED POPULUS DIVIDIANA TREES

Peng Haiyuan,Ding Hanxi   

  1. Department of Forestry products, Northeast Forestry University, Harbin, China.
  • Received:1988-07-29 Revised:1900-01-01 Online:1989-11-25 Published:1989-11-25

关键词: 超微结构, 干燥皱缩, 山杨小径木

Abstract: The ultrastructure of the wood from the thinned Populus dividiana trees was studied by means of seanning electronmicroscope. Occurrence of tylosis was found with less amount in heartwood as well as in the transitional zone boundary from sapwood to heartwood. This might be one of the major causes of collapse in the process of wood drying. The anatomical features of collapsed cells and the ultrastructure variance after steaming were also studied in order to justify that collapse could be eliminated by steaming treatment.

Key words: Ultrastructure, Drying collapse, Thinned Populus dividiana