棉田施用除草剂对节肢动物群落种群数量的影响

Effect of Herbicide on the Population Dynamics of Arthropod Species in Cotton Field

研究表明 ,棉田施用灭生性除草剂克芜踪后 ,节肢动物物种数减少 1 0 % ;棉株节肢动物的种群数量和消长不受影响 ;地面节肢动物 ,不论植食类还是肉食类 ,种群数量均显著降低 ,这种影响在施药后可持续两个月。施用选择性除草剂高效盖草能 ,对棉株和地面节肢动物的种群数量和消长均无显著影响。

The results of this study indicated that affer applicating the extirpated herbicide paraquat,the varieties of arthropod species declined siginaticantly,while the use of selective herbicide halaxytop-R-methy,there was no remarkelde effect in cotton plants and field.