摘要
2014年在管涔林区怀道林场大干沟龙王脑发现华北落叶松人工林受到华北落叶松鞘蛾的侵害,2015年开始设立多个调查观察期样地,对华北落叶松鞘蛾的发生与华北落叶松受害株率及华北落叶松受害后自我补偿效应进行调查和监测。结果表明,华北落叶松鞘蛾在怀道林场每年发生一代,主要为害华北落叶松人工纯林,平均有虫株率为70%,最高达95%;成虫每年6月4日至6月30日在林间扬飞一次;阳坡林地比阴坡受害严重,林缘比林内更易受华北落叶松鞘蛾危害,郁闭度低的林分比高的林分受害严重;华北落叶松具有高度耐害性和自我恢复生长效应。
In 2014,Coleophora sinensis moths were found in Larix principis-rupprechtiiin plantation in Dagangou and Longwangnao of Huaidao forest farm,Guancen forest district.The sample plots were set up to investigate and monitor the occurrence of Coleophora sinensis Yang,the damage rate and the self-compensation effect after suffering of Larix principis-rupprechtii in 2015.The result indicated that Coleophora sinensis occurred one generation every year,which mainly harmed the artificial forest of Larix principis-rupprechtii,with an average damage rate of 70%and up to 95%.The adults flew once in the forest from June 4 to June 30 each year.The damage of forestland on sunny slope was more serious than that on shady slope.The edge of the forest and the open space between the forests were more vulnerable to Coleophora sinensis moth than those in the forest.The stand with low canopy density was more seriously damaged than the stand with high canopy density.The end of the branch was more damaged than the base of the branch.It had high damage tolerance and self-recovery compensatory growth effect.
作者
宗彦平
ZONG Yanping(State-owned Forestry Administration Bureau of Guancenshan,Shanxi Province,Ningwu 036700,China)
出处
《山西农业科学》
2020年第1期99-102,共4页
Journal of Shanxi Agricultural Sciences
基金
山西省科技基础条件平台项目（201605D121020）
关键词
怀道林场
华北落叶松鞘蛾
发生规律
生活史
Huaidao forest farm
Coleophora sinensis Yang
occurrence regularity
life history
