Study on Structure of Arthropod Communities in Rape-Field

Systematic research on composition and quality of species, temporal dynamic and vertical structure of richness, eveners diversity, concentration etc of arthropod communities was investigated in rape field,and the main results as follows: aphididae , phytomyza nigricornis and spiders were predominated species in rape field in Hefei. The four indexes of arthropod communities displayed regulation. The law of richness index and diversity index were more significant. Vertical structure of arthropod communities which appeared aggregated distribution was related with the demand of species to nutrition of autoeciousness.