油桐尺蠖危害对桉树生物量和木材材积的影响  

Effect on Losses of Eucalyptus Biomass and Wood Volume Suffered by Buzura Suppressaria Guenee

作　　者：邹华南 

机构地区：[1]福建省华安县森林病虫害防治检疫站,福建华安363800

出　　处：《青海农林科技》2015年第1期15-18,48,共5页Science and Technology of Qinghai Agriculture and Forestry

摘　　要：为了解桉树遭受油桐尺蠖危害对桉树生物量和木材材积造成的损失,通过调查、测定受油桐尺蠖危害的林分相关情况,运用数学模型对虫害损失科学评估。结果表明,桉树遭受虫害后对桉树生物量和木材材积造成的损失是十分明显的,特别是受害程度达中、重度的2-3a生桉树单株生物量和立木材积有较大的损失,生物量和材积损失率分别达21.62%-51.83%和36.23%-75.17%。在生产上,当桉树油桐尺蠖虫口密度达到6条/标准枝(50cm)以上建议要采取有效防治措施,压缩虫口密度,防止对林木造成更大的损失。In order to understand the biomass and wood volume loss of Eucalyptus suffered by Buzura Suppressaria,we had surveyed the victims stand and used the mathematical model to carry out disaster loss. The results show that, the loss of Eucalyptus biomass and wood volume is very obvious. Especially for the moderate and severe injured degree,the biomass loss rate and volume loss rate reached 21.62% -51.83% and 36. 23% -75.17% respectively. In the production,when pest density reached 6 insects per standard branch （50cm） and above, we should take chemical control measures, to reduce the population density, avoid causing bigger loss.

关 键 词：油桐尺蠖 桉树 生物量 材积 损失评估 

分 类 号：S79[农业科学—林木遗传育种]