摘要
本文从生态学的角度研究了化学杀虫剂对春甘蓝田节肢动物群落结构的影响。结果表明,化学杀虫剂使节肢动物群落物种丰富度、多样性指数及均匀度均降低,而天敌的丰富度和多样性指数比害虫的丰富度和多样性指数降低更大,从而使春甘蓝田节肢动物群落的稳定性减弱,生态系统被严重破坏。
The effects of chemical pesticides on arthropod community in spring wild cabbage field were studied from the ecological point in this article. The results showed that the species abundance, diversity index and evenness of the arthropod community were decreased because of the use of chemical pesticides, and that the species abundance and diversity index of the enemy sub-community decreased more than that of pest sub-community. Consequently, the stability of the arthropod community in spring wild cabbage field was cut down and the ecosystem was seriously destroyed.
出处
《莱阳农学院学报》
2003年第3期180-183,共4页
Journal of Laiyang Agricultural College
关键词
化学杀虫剂
春甘蓝
节肢动物
群落结构
spring wild cabbage field
Arthropod Community
chemical pesticide
diversity index
