摘要
应用多样性指数、均匀度指数、优势度和群落相似性系数的方法研究了不同苹果园昆虫 (螨 )的群落结构。结果表明 ,4种类型苹果园优势种明显 ,5月 30日和 6月 2 5日经调查优势种均为锈线菊蚜 ( Aphis citricola Van der Goot) ,清耕果园多样性指数、均匀度相对较大 ;7月30日优势种均为山楂叶螨 ( Tetranychus viennensis) ,生草果园多样性指数、均匀度相对较大。苹果园昆虫 (螨 )群落的演替与果园生草与否有一定关系 。
The methods of diversity exponent, evenness exponent, dominance and similarity coefficient were used to study the commurity structures of insects in different apple orchards. The results showed that the dominance was obvious in 4 apple orchards, it was Aphis citricola Van der Goot on May 30 and June 25, and diversity exponent and evenness exponent were higher in grassing apple orchards. On July 30 the dominance was Tetranychus viennensis Zacher., and diversity exponent and evenness exponent were higher in no grassing apple orchards. The development of the community structrues of insects in apple orchards were found to be mainly relateld with tree age and grassing et comprehonsive factors.
出处
《西北林学院学报》
CSCD
北大核心
2002年第4期54-56,共3页
Journal of Northwest Forestry University
基金
陕西省攻关项目 (98K0 5 -G1-0 3 )
陕西省科学院跨世纪人才计划项目
