Abstract:

The dynamics of component structures and nutrient classes diversity of the arthropod community were analyzing using species and nutrient classes and guilds in different intercropping and managing jujube yard ecosystems in Taigu. The results indicated that the species diversity>guilds diversity>nutrient classes diversity in all treatment fields. The correlation among nutrient classes diversity, guilds diversity and species diversity were obviously significant (P<0.01). The variable trend of guild's biodiversity was similar to that of the species biodiversity, the fluctuation of nutrient classes diversity was less. If the species was replaced by guilds in studying the structure and function of community, the complicated network relationship among species in the community would be simplified. The function of natural enemy in the community should be evaluated on the numbers, the temporal and spatial niches of natural enemies, pests and neutral insects. The neutral insects in jujube yards arthropod community play an important role in the nutrient chain of the pests and natural enemies.

Key words: Jujube yard ecosystems, Arthropod community, Guild, Abundance, Biodiversity