美国杏李园间种紫花苜蓿和间作红豆草对天敌影响评价

Evaluation of the Infulence of Natural Enemies in U.S Aprum Orchards Monoculture and Intercropped with Medicago Sativa,Onobrychis Viciaefolia

系统地调查了单作与间种紫花苜蓿和间种红豆草杏李园树上天敌的群落动态,评价了间断使用化学农药对天敌功能团的干扰与天敌种群的恢复力的影响.结果表明:在美国杏李树不同的生长发育阶段,间种紫花苜蓿园中、间种红豆草园和未种草常规防治园杏李树上天敌功能团的参数存在差异.种植红豆草果园生物多样性指数高于种植紫花苜蓿的果园和未种草常规防治园.美国杏李园间种紫花苜蓿和间种红豆草对天敌功能团的演替产生一定的作用,杏李树不同发育阶段中,天敌功能团的群落参数随物候而改变.杏李园间种紫花苜蓿园中和间种红豆草对于受到化学农药干扰的天敌功能团种群的恢复与重建有促进作用.

The community dynamics of natural enemies are investigated systematically in U. S Aprum trees monoculture and intercropped with Medicago sativa, onobrychis viciaefolia, evaluating the infuluence about pesticides both the interference of natural enemies function and the resilience of the natural population. The results show that： there are differences on parameters of natural enemies in U. S Aprum orchards between monoculture and intercropped with medicago sativa, onobrychis viciaefolia, in different stages of growth and development. The biological diversity index, intereropped with onobrychis viciaefolia in U. S Aprum orchards are higher than with Medicago sativa and U. S Aprum monoculture. Having a good role for the succession of the functional groups of the natural enemies intercropped with Medicago sativa, onobrychis vieiaefolia, the community parameters of the functional groups of natural enemies change with phenology in different developmental stages. The inter cropping could promote rehabilitation and reconstruction for the functional groups of natural enemies interference using chemical pesticides by intercropped with medicago sativa, onobryehis viciaefolia in U. S Aprum orchards.