安顺市林业有害生物普查结果与分析

Survey Results and Analysis of Forestry Pests in Anshun City

通过比较分析2003年及2015年两次林业有害生物普查数据,得知在10余年间,安顺市林业有害生物种类从19种增加到64种,分布面积从134326.9hm^2减少到52557.5hm^2,危害程度总体呈下降趋势。数据分析结果表明:林业有害生物种类变化与寄主数量增加和林业产结构调整关系密切;分布面积和危害程度变化与人为防控措施的干预直接关联;外来有害生物风险等级较高,已对生物多样性形成较大威胁。同时对林业有害生物提出了治理对策。

A comparative analysis of twice forest pest survey results data（ 2003 and2015） showed that the species increased from 19 to 64,and the distribution area reduced from 134326. 9 hm^2 to 52557. 5 hm^2,the degree of damage was generally declining in Anshun city during more than 10 years. The change of species was closely related to the increase of host population and the adjustment of forestry production structure; the change of distribution area and damage degree were directly related to the intervention of human prevention and control measures. And the higher risk of the invasive exotic harmful organisms had become a great threat to biodiversity. At the same time,the prevention measures on forest pests were put forward.