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对5种不同间作枣园的害虫群落结构特征进行了研究,结果表明,在不同的间作枣园中,害虫的科、种与个体数是各不相同的,其多样性、均匀度和Berger-Parker指数也有明显差异(p<0.05)。间作牧草或保留杂草的枣园,害虫的科与种以及多样性和均匀度明显(p<0.05)大于间作小麦、大豆和单作枣园,而个体数和Berger-Parker指数则显著(p<0.05)小于单作枣园。枣园害虫个体数的时序动态随季节交替而有明显(p<0.05)的变化,4~8月份害虫的个体数明显(p<0.05)大于3月份、9~10月份。在枣园间作作物、牧草或者适当保留一定数量的杂草,不仅能够充分有效地利用枣园的空间和自然资源,而且增加了生物的多样性,改善了枣园的生态环境,同时提高了有害生物相互制约的能力和枣园单位面积的纯收入。
The pest community structure characteristics of five different intercropping jujube orchards were studied. The results showed that in different intercropping jujube orchards, the number of pests, branches and individuals were different. The diversity, evenness and Berger- There was also a significant difference in Parker index (p <0.05). The species and species of pests and their diversity and evenness were significantly higher (p <0.05) than intercropping wheat, soybean and jujube orchards, while the number of individuals and Berger-Parker index were significant (p <0.05) is less than for jujube alone. The temporal dynamics of individuals in jujube orchards showed significant (p <0.05) changes with seasonal alternations, and the number of individuals in April-August was significantly (p <0.05) greater than in March and September-October. It is not only able to make full and effective use of the space and natural resources of jujube gardens but also to increase the biodiversity of the plants and improve the ecological environment of the jujube gardens while increasing the harmfulness Biological capacity of mutual constraints and Juyuan net income per unit area.