摘要
采用随机样地取样法,调查了滇东北地区细梢小卷蛾Rhyacionia leptotubula的分布危害情况,并初步研究了其发生与林分因子的关系。结果表明,细梢小卷蛾在滇东北华山松Pinus armandii主要分布区均有分布,以会泽县与昭通市昭阳区危害较为严重。在6个林分因子中,细梢小卷蛾危害与海拔高度、林分密度呈显著正相关,与树高呈显著负相关,而与坡向、树龄、郁闭度相关性不显著。
The distribution and damage of Rhyacionia leptotubula were investigated with random-sampling method in Northeastern Yunnan Province and the correlations between its occurrence and stand factors were analyzed.The results showed R.leptotubula distributed widely in Northeastern Yunnan Province,especially in Huize County and Zhaoyang District of Zhaotong.The damage degree had significantly positive relevance to the altitude and forest density,but significantly negative relevance to tree height.There was no significant relevance between its damage and slope aspect,stand age and canopy.
出处
《中国森林病虫》
北大核心
2012年第6期20-21,41,共3页
Forest Pest and Disease
基金
国家自然科学基金(30960316)
西南林业大学重点基金(110931)
关键词
细梢小卷蛾
危害特点
分布
林分因子
Rhyacionia leptotubula
damage
distribution
stand factor
