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林业资源管理 ›› 2012›› Issue (3): 85-89.

• 科学技术 • 上一篇    下一篇

修枝对华北落叶松人工林分生长的初期影响

杨飞1, 王欣1, 郭延朋2, 张燕华2, 马长明1   

  1. 1.河北农业大学 林学院,河北 保定 071000;
    2.河北省木兰围场国有林场管理局,河北 承德 068450
  • 收稿日期:2012-02-20 修回日期:2012-03-26 出版日期:2012-06-28 发布日期:2020-11-27
  • 通讯作者: 马长明,男,副教授,主要研究方向为森林培育。
  • 作者简介:杨飞(1984-),男,河北柏乡人,在读硕士,研究方向为森林培育。Email:yf525@yahoo.com.cn
  • 基金资助:
    国家公益专项(20100400205)

Effects of Pruning on Stand Growth of the Artificial Larix principis-rupprechtii Mayr Forest

YANG Fei1, WANG Xin1, GUO Yanpeng2, ZHANG Yanhua2, MA Changming1   

  1. 1. Agricultural University of Hebei,Baoding 071000,China;
    2. Mulan State-owned Forest Farm Administration,Chengde 068450,Hebei Province,China
  • Received:2012-02-20 Revised:2012-03-26 Online:2012-06-28 Published:2020-11-27

摘要: 以河北省围场县木兰林管局管辖区的新丰林场试验林为基础,分析了修枝强度以及修枝剩余物的不同处理对华北落叶松人工林生长及冠层变化的影响。修枝强度设置3种,强(冠高比4/5)、中(冠高比7/10)、弱(冠高比3/5);对修枝剩余物处理分别为放置、清理、粉碎,并设置对照。结果表明:不同程度的修枝对林木的胸径生长率均有一定的提高作用,其中,中度修枝对林木胸径、树高生长率的促进和Vissky系数的提高较为明显;针对修枝剩余物不同处理试验的初期结果显示,粉碎处理和清理处理的林分,有利于林木胸径生长率的提高,放置处理的林分更有利于提高林木树高生长率。

关键词: 华北落叶松人工林, 生长率, 修枝, 修枝剩余物

Abstract: According to Xinfeng Experimental Forest Farm of the Mulan State-owned Forest Farm Bureau in Hebei Province,This paper evaluated the influence of the pruning strength and different treatments of pruning on the Larix principis-rupprechtii Mayr. planted forest growth and canopy change. The pruning strength intensity is set based on the crown height percentage that respectively is 4/5,7/10,3/5 and the control area is also set; The processing of pruning remains is placing,cleaning,crushing and the set control area. The result showed that different levels of pruning of forest trees at DBH growth rate all have certain improvements,among them,moderate pruning of forest trees DBH,promotion height rate of growth and the tree Vissky index increase is obvious; according to different treatment of the test pruning remains early results show that crushing and clean up processing stand is helpful for the improvement of forest tree DBH rate,placed processing stand is more conducive to improving forest tree height growth rate.

Key words: Larix principis, growth rate, pruning, residues of pruning

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