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对云南普洱不同种植环境夏玉米田节肢动物群落进行调查,应用群落特征指数、群落稳定性和主成分分析法,对不同种植环境夏玉米田节肢动物群落特征、稳定性和主成分进行对比分析。结果表明,调查区夏玉米田共采集到节肢动物10174头,隶属2纲15目100科261种,其中单作地夏玉米田采集到节肢动物共计5604头,隶属2纲13目84科168种,混交地夏玉米田采集到节肢动物共计4570头,隶属2纲15目90科209种。与单作地夏玉米田相比,混交地夏玉米田节肢动物群落物种数、多样性指数、均匀性指数、丰富度指数、天敌物种数及个体数均较高;植食性昆虫个体数及其所占比例、优势集中性指数和优势度指数较低;群落较稳定;群落多样性、均匀性、丰富度等指数随时间变化波动较小;单作地夏玉米田中,刺吸昆虫个体数量和食叶昆虫物种数量是主导节肢动物群落变化的最主要因子;混交地夏玉米田中,寄生昆虫个体数量、捕食昆虫物种数量和刺吸昆虫个体数量主导了节肢动物群落的变化。
The arthropod community in summer maize fields with different planting environments in Pu'er, Yunnan Province was investigated. Community characteristics index, community stability and principal component analysis were used to analyze the characteristics, stability and main components of arthropod community in summer maize field with different planting environments. The results showed that 10174 arthropods were collected in the summer maize field in the survey area, belonging to 261 species belonging to 2 orders, 15 orders and 100 families. Among them, 5604 arthropods were collected in the monocropped summer maize field, belonging to 168 genera, 168 families, The total number of arthropods collected in the summer maize field was 4570, belonging to 209 classes, 90 orders, 2 classes, 15 orders. Compared with single cropping summer corn field, the number of arthropod community, diversity index, evenness index, richness index, natural enemy species number and individual number were higher in the summer maize mixed field. The number of individual phytophagous insects and their The proportion, the dominant concentration index and the dominance index were lower; the community was stable; the index of community diversity, evenness and richness fluctuated little with time; the number of individuals sucking insects The number of leaf-insects species was the most important factor that led to the change of arthropod community. In mixed-field summer maize field, the number of parasitic insects, the number of predatory insects and the number of sucking insects dominates the changes of arthropod community.