关键词: 有机观光桃园, 节肢动物, 多样性, 动态

Abstract:

Arthropods were collected from a recreation and organic peach orchard (ROPO) in Suziyu of Pinggu, Beijing from April to October, 2006 to investigate the diversity and seasonal dynamic of arthropod community in the ROPO. All data from ROPO were used to analyze the structure and diversity of arthropod community in the ROPO with Excel and SPSS. There were differences in diversity of arthropod community over seasons and among different subcommunities in each season. Each diversity index of arthropod community and phytophagous subcommunity was significantly higher (P<0.05) in July than that in other months, while each diversity index of predacious and parasitic arthropod subcommunity was significantly higher (P<0.05) in August than that in other months. Relative stability of arthropod community was higher (P<0.05) in August than that in other months. The transformation pattern of parameter correlations between different nourishments of arthropod community was relative uniform, and all the correlations were significant (P<0.05). Based on the above information, the following suggestions were proposed. It is necessary to intensify integrated management and regulation during prophase of ROPO. According to the forecast combined with the information from former years, natural enemies are released and biocontrol agents are used in early stages of dominant pest occurrence in order to balance the proportion between pest and natural enemies. For preventing pests from damage to ROPO, useless branches are pruned and fruits are thinned, and more organic fertilizer is added, and target fruits are protected by covering paper bag in each fruit in order to produce health products.

Key words: recreative and organic peach orchard(ROPO), arthropod, diversity, dynamics