欢迎访问《应用生态学报》官方网站,今天是 分享到:

应用生态学报 ›› 1996, Vol. 7 ›› Issue (3): 235-239.

• 研究论文 • 上一篇    下一篇

农田防护林木材材质物理特性研究

范志平, 姜凤岐, 林鹤鸣, 朱教君, 曾其蕴, 栾树杰   

  1. 中国科学院沈阳应用生态研究所, 沈阳110015
  • 收稿日期:1995-10-30 修回日期:1996-01-12 出版日期:1996-07-25 发布日期:1996-07-25
  • 基金资助:

    国家“八五”科技攻关项目

Physical properties of wood quality of farm shelterbelts

Fan Zhiping, Jiang Fengqi, Lin Heming, Zhu Jiaojun, Zeng Qiyun, Luan Shujie   

  1. Institute of Applied Ecology, Academia Sinica, Shenyang 110015
  • Received:1995-10-30 Revised:1996-01-12 Online:1996-07-25 Published:1996-07-25

摘要: 对早柳和小青杨的年轮宽度、年轮密度、木材纤维长度和干缩率及其径向变异进行了研究.结果表明,木材物理特性受年轮年龄的影响显着,而纤维长度不受年轮宽度影响.综合材质物理特性的径向变异规律,可将旱柳和小青杨整个生长期划分为4个时期:幼林期、速生期、成熟期和更新期,确定了各生长期的年龄值.

关键词: 农田防护林, 木材特性, 旱柳, 小青杨, 裸根苗, 细根, 氮代谢, 凝胶, 氮素利用率

Abstract: Studies on the width and density of ring and the length, shrinkage rate and their radial variations of wood fiber of Salix matsudana and Populus pseudo-simonii show that the physical properties of wood are significantly affected by its ring age,and the fiber length of wood is not influenced by ring width.Through synthesizing the radial variation patterns of wood properties,it is suggested that the whole growth period of these two kinds of tree species can be divided into young growth, fast-growing,mature and regeneration stages.The age value of each stage is defined.

Key words: Farm shelterbelts, Wood property, Salix matsudana, Populus pseudo-simonii, fine root, nitrogen use efficiency., bareroot seedling, nitrogen metabolism, gel