萧氏松茎象虫口密度与虫孔数的关系研究
2008-06-15分类号：S763.3
【部门】江西农业大学园林与艺术学院 江西农业大学园林与艺术学院 江西省森林病虫害防治站 江西南昌330045 江西南昌330045 江西南昌330077
【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 ...
【关键词】萧氏松茎象 虫口密度 虫孔 数学模型
【基金】国家林业局重点课题资助项目(2001-22)
【所属期刊栏目】林业科学研究
文献传递
