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1999— 2 0 0 1年对山西太谷地区综合防治枣园与常规防治枣园天敌昆虫的群落结构及其多样性的研究结果表明 :在综合防治枣园中发现有 8个目、2 5个科、5 8个种和 5 0 0 9个天敌的个体数 ,而在常规防治枣园中发现有 8个目、18个科、2 7个种和 1911个天敌的个体数。方差分析结果表明综合防治枣园天敌的科、种及个体数显著大于常规防治枣园 (P <0 0 5 )。枣园中天敌的优势种是枣盲蛇蛉、七星瓢虫、晋草蛉、桃小甲腹茧蜂和蚧金小蜂。在综合防治枣园中 ,主要天敌昆虫的优势度显著大于常规防治枣园 (P <0 0 5 )。天敌昆虫各群落的生态优势集中性在两区不同生育期基本上趋于一致 ,综合治理区主要类群的优势集中性几乎总是大于常规防治区 ;综合治理区天敌昆虫群落和捕食性亚群落的多样性与均匀度较常规防治区有明显 (P <0 0 5 )的提高 ;在综合治理区 ,影响群落多样性的主要成分是种类丰富度 ,在常规防治区 ,影响群落多样性的主要成分既有种类丰富度 ,又有均匀度和个体数。
From 1999 to 2001, the community structure and diversity of natural enemies of Zaoyuan (Zaoyuan) and its control (Zaoyuan) in Taigu, Shanxi Province were studied. The results showed that there were 8 orders and 25 58 individuals and 5 0 0 9 natural enemies, while individuals of 8 orders, 18 families, 27 species and 1911 natural enemies were found in the conventional control Zaoyuan. Analysis of variance showed that the families, species and individuals of integrated control of natural enemies in jujube were significantly greater than that of the control (P <0 05). Zaoyuan predators are the dominant species of snake jujube Jujube, Coccinella septempunctata, Jin Caocao, peach Aphid peach and golden peach. In the integrated control Zaoyuan, the dominance of the major natural enemies was significantly greater than that of the conventional Zaoyuan (P <0.05). The predominance of ecological superiority of each group of natural enemies was basically the same in different growth stages of the two regions, and the predominant concentration of dominant groups in the comprehensive management area was almost always greater than that of the conventional control area. The natural enemy insect community and the predatory sub-community in the comprehensive management area (P <0.05). In the comprehensive control area, the main component affecting the community diversity is species richness. In the conventional control area, the main components affecting the community diversity Both types of richness, but also the uniformity and the number of individuals.