不同受害类型松林中马尾松毛虫自然种群生命表研究  

Natural population life table of pine caterpillar (Dendrolimns punctatus) in different damaged pine forests

作　　者：刘兴平[1] 温小遂 李冬[1] 吴自荣[1] 

机构地区：[1]江西农业大学园林与艺术学院,南昌330045 [2]江西省林业有害生物防治检疫局,南昌330077

出　　处：《环境昆虫学报》2010年第2期210-214,共5页Journal of Environmental Entomology

基　　金：江西农业大学校青年基金项目(1559)

摘　　要：通过组建自然种群生命表来研究比较受害松林与未受害松林间马尾松毛虫Dendrolimus punctatus Walker的种群动态。结果表明,在未受害松林中马尾松毛虫的存活率达15.33%,种群趋势指数为24.0489;在受害松林中马尾松毛虫的存活率为0.61%,种群趋势指数为0.4864。在受害松林中的总K值(3.2183)也要远远大于未受害松林中的总K值(0.8146)。在未受害松林中易引起马尾松毛虫种群数量的剧增,而在受害的松林中马尾松毛虫的种群呈下降趋势。这一结果表明受害的松林本身对马尾松毛虫种群具有一定的自然调控作用。The population dynamics of pine caterpillar Dendrolimus punctatus Walker were compared by established the life tables under damaged pine forest and non-damaged pine forest. The results showed that the survival rates and the trends indices of population increase for pine caterpillar were 15.33% and 24.0489 in non-damaged pine forest, respectively. It was much higher than those in undamaged forest, which the survival rates and the trends indices of population increase for pine caterpillar, were 0.61% and 0.4684. The total K value （3.2183） in damaged pine forest was also far greater than that in non damaged pine forest （0.8146）. The pine caterpillar population was caused sharply increasing in non damaged pine forest, while declining in damaged pine forest. The results showed that damaged pine forest has a certain role in the natural regulation of pine caterpillar population.

关 键 词：马尾松毛虫 受害松林 未受害松林 种群动态 生命表 

分 类 号：S718.7[农业科学—林学]