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林业科学 ›› 2011, Vol. 47 ›› Issue (3): 184-188.doi: 10.11707/j.1001-7488.20110328

• 研究简报 • 上一篇    下一篇

107杨人工林密度对林木生长的影响

田新辉1, 孙荣喜1, 李军2, 赵长海2, 杨敏生1   

  1. 1. 河北农业大学 保定 071000;2. 河北省衡水市林业局 衡水 053000
  • 收稿日期:2009-08-04 修回日期:2010-10-17 出版日期:2011-03-25 发布日期:2011-03-25
  • 通讯作者: 杨敏生

Effects of Stand Density on Growth of Populus×euramericana’Neva’ Plantations

Tian Xinhui1, Sun Rongxi1, Li Jun2, Zhao Changhai2, Yang Minsheng1   

  1. 1. Agricultural University of Hebei Baoding 071000;2. Forestry Bureau of Hengshui Prefecture Hengshui 053000
  • Received:2009-08-04 Revised:2010-10-17 Online:2011-03-25 Published:2011-03-25

关键词: 107杨, 人工林, 林分密度, 林分生长

Abstract:

Based on investigation of 6 year old plantations of Populus×euramericana ’Neva’ in Hengshui, the relationship between stand density and growth was studied. The results showed that there was negative relationship between stand density and stand mean diameter, mean tree height, mean crown width and mean individual volume. The average tree's diameter, height, crown width and volume for individual trees decreased with the increase of stand density in a certain range. The ratio of height to diameter of trees increased with high density. Stand volume first increased with the stand density in low density range, however decreased with the increase of stand density in higher density range. The optimum plantation density for stand growth was 1 000-1 200 stem ·hm-2 in Taocheng District and 800-1 000 stem ·hm-2 in Wuyi County.

Key words: Populus×, euramericana &rsquo, Neva&rsquo, plantation, stand density, stand growth

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