摘要
通过两种线小卷蛾对落叶松人工林轻、中、重度危害的研究,提出了两种线小卷蛾对落叶松人工林生长影响的定量计算方法,得出了两种线小卷蛾对落叶松人工林生长量的影响。结果表明,害虫发生程度越重,落叶松林各项生长量下降越多。
Based on the studies on the damages of larch plantations by Zeiraphera lariciana and Zeiraphera with different damage degrees of slightly, intermediate and severe, a quantiative evaluation method for the influence of larch plantations by the two insect species is developed in the study, and the affected figures of the growth parameters of larch stands are worked out. Studies show that the more severe these pests damage, the more greatly the stands decrease in all the growth parameters.
出处
《河北林果研究》
2006年第1期81-82,共2页
Hebei Journal of Forestry and Orchard Research
关键词
线小卷蛾
落叶松人工林
生长量
Zeiraphera lariciana and Z. grisecana
larch plantation
stand growth
