萧氏松茎象虫口密度与虫孔数的关系研究  

Relationship between Mean Population Density and Worm Hole of Hylobitelus xiaoi Zhang in Slash Pine

作　　者：彭龙慧[1] 许永青[1] 温小遂[2] 

机构地区：[1]江西农业大学园林与艺术学院,江西南昌330045 [2]江西省森林病虫害防治站,江西南昌330077

出　　处：《林业科学研究》2008年第3期411-414,共4页Forest Research

基　　金：国家林业局重点课题资助项目(2001-22)

摘　　要：44 plots were set up in different slash pine plantations in Jiangxi Province.The relationship between the mean population density of Hylobitelus xiaoi and the mean worm hole in slash pine were investigated and 5 functions were found respectively.The results showed that the best suitable mathematics model could be described as: Y=0.082x2+0.2 216x+0.063,and the table of relationship between the mean population density of H.xiaoi and the mean worm hole in slash pine were established,which provided a simply method for number investigation and forecast of H.xiao in slash pine plantations.44 plots were set up in different slash pine plantations in Jiangxi Province. The relationship between the mean population density ofHylobitelus xiaoi and the mean worm hole in slash pine were investigated and 5 functions were found respectively. The results showed that the best suitable mathematics model could be described as： Y = 0. 082x^2 ＋ 0.2 216x ＋ 0. 063, and the table of relationship between the mean population density of H. xiaoi and the mean worm hole in slash pine were established, which provided a simply method for number investigation and forecast of H. xiao in slash pine plantations.

关 键 词：萧氏松茎象 虫口密度 虫孔 数学模型 

分 类 号：S763.7[农业科学—森林保护学]