Abstract:

The diversity and insect community in different intercropping and managing jujube yard ecosystems in Taigu were studied. The results showed that there were 209 species of insect that belong to 13 order and 80 families in different jujube yard ecosystems in Taigu (including harmful mites). The number of order and species and individual were not the same in different jujube yard ecosystems. In different ecosystems, proportion of principal groups in insect community was different,so that diversity and evenness and dominant concentration index were not the same. Annual dominant species in each jujube yard was insect scales, and sometimes was Scythropus yasumatsui Kono et Morimoto and Sucra jujuba Chu and Tetranychus cinnabarinus (Boisduval). The dominant concentration index of insect community and its principal groups was not the same in different month and jujube yards.

Key words: Jujube yard ecosystems, Insect community, Diversity, Evenness, Dominant concentration index