Preliminary Studies on the Relationship between Crop Structure and Diversity of Arthropod Community in Agro-Ecosystem

Arthropod communities in the fields of 10 crops in the agro-ecosystem were analyzed. The results indicated that there were significant differences in their diversity, abundance and evenness. The effects of crop structure on diversity of these arthropod communities were also studied. The results showed that there was significantly positive correlation between diversity, abundance of arthropod community and crop structure in the agro-ecosystem. There was no correlation in their evenness. Diversity indexes of arthropod communities were H′_中H′_害H′_天 on the level of any crop structure.