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比较了有机管理、常规管理和自然园3种不同管理方式下柑橘树冠层节肢动物群落多样性。结果表明:常规管理的柑橘园转有机管理后,柑橘园节肢动物群落的物种组成增加了1目、24科、130种;害虫类群的个体数量减少,而天敌类群的个体数量增加;在有机管理方式下,节肢动物群落的多样性指数、均匀度及优势集中性指数等全年的波动幅度介于自然园和常规管理区之间;有机管理区节肢动物群落的丰富度、多样性指数、均匀度及优势集中性指数等指标与自然园相比无显著差异,而与常规管理之间差异显著。有机管理方式能够提高和恢复柑橘园节肢动物群落的多样性,有助于实现对柑橘害虫的生态控制。
The diversity of canopy arthropod community in citrus trees was compared under three different management methods: organic management, routine management and natural garden. The results showed that the species composition of arthropod community in citrus orchards increased by 1, 24 and 130 species after the conventional management of citrus orchards in organic management; the number of individuals in pest populations decreased while the number of individuals in natural enemies increased; The diversity index, evenness and dominant concentration index of arthropod community fluctuated throughout the year between the natural park and the conventional management area. The abundance, diversity index and evenness index of arthropod community in the organic management area Degree and the concentration index and other indicators and the natural garden compared to no significant difference, and significant differences between conventional management. Organic management enhances and restores the diversity of arthropod communities in citrus orchards and contributes to the ecological control of citrus pests.