马尾松毛虫危害程度与马尾松材积生长率之间关系的模拟试验

›› 1987, Vol. 23 ›› Issue (1): 29-35.

马尾松毛虫危害程度与马尾松材积生长率之间关系的模拟试验

李天生陈建寅卢崇飞

中国林业科学研究院林业研究所；浙江安吉县林业局；北京大学概率统计系

收稿日期:1986-02-05 修回日期:1900-01-01 出版日期:1987-02-25 发布日期:1987-02-25

SIMULATION STUDIES ON THE RELATIONSUIP BETWEEN THE DEMAGE CAUSED BY THE PINE CATERPILLAR AND THE WOOD VOLUME LOSSES OF THE PINUS MASSONIANA LAMB.

Li Tiansheng,Chen Jianyin,Lu Chongfei

Forest Research Institute, Chinese Academy of Forestry;Forestry Division, Zhejiang Anji County;Department of Probability Statistics, Peking University

Received:1986-02-05 Revised:1900-01-01 Online:1987-02-25 Published:1987-02-25

摘要/Abstract

摘要： 1983年3月至1985年4月在浙江省安吉县龙山林场用人工摘叶方法模拟松毛虫不同的危害程度,观察对摘叶后第一年与摘叶后第二年马尾松材积生长率的影响。试验采用树龄、土壤肥力、摘叶时间与摘叶量4个因子(每个因子各2或4个水平)的综合影响的多因子正交回归设计,所得数据用逐步回归分析方法筛选影响受害树材积生长率的主要因子,建立其间的定量关系式。结果表明,摘叶对摘叶后第一年材积生长有影响,对摘叶后第二年材积生长的影响不显著。松毛虫危害造成的影响小于树木自身生长规律所起的作用。且材积生长率的损失与针叶损失量之间不是线性关系,而是曲线回归。

Abstract: The experiment was carried out in the pine plantation of Longshan forest farm in Zhejiang Province from March of 1983 to April of 1985. The damage caused by the pine caterpillar was simulated by artificial defoliation of the pine tree of different age classes in two kinds of soil conditions and under four seasonal periods. The orthogonal regression design was adopted in the experiment and data was analized by stepwise regression method. The results shown that in the first year after defoliation, the effect of defoliation on wood volume is less than the age classes of tree, i. e. the growth rate is regulated by tree itself. The relation between wood volume losses and needle losses is not a simple linear relation but rather a curved regression. Two years after defoliation, the effect of defoliation is not evident.

李天生陈建寅卢崇飞. 马尾松毛虫危害程度与马尾松材积生长率之间关系的模拟试验[J]. , 1987, 23(1): 29-35.

Li Tiansheng;Chen Jianyin;Lu Chongfei. SIMULATION STUDIES ON THE RELATIONSUIP BETWEEN THE DEMAGE CAUSED BY THE PINE CATERPILLAR AND THE WOOD VOLUME LOSSES OF THE PINUS MASSONIANA LAMB.[J]. , 1987, 23(1): 29-35.