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依据人为经营干扰程度的强弱,将毛竹林划分为杂木毛竹林、杂草毛竹林和干净毛竹林3种类型。通过系统地样地调查,结果表明:毛竹林植物多样性按杂木毛竹林、杂草毛竹林和干净毛竹林的顺利依次降低,不同干扰毛竹林内植食性集团、中性集团和天敌集团各个目、科、物种的分布特征存在很大差异。同时,物种个体分布特点上也存在较大的差异。以抛荒经营为对照,经营干扰均不同程度地降低了毛竹林内节肢动物群落的丰富度、多样性、均匀性和个体数,增加了其优势集中性,其中以精细管理干扰对群落丰富度和多样性影响最大,主要表现为降低了植食性、中性及天敌集团的多样性和均匀性。在时间序列变化中,随着经营干扰强度的加大,物种的丰富度、多样性及均匀性在大多数阶段处于较低水平;优势集中性则处于较高水平,主要表现为中性集团和天敌集团相对丰盛度处在一个较低水平,植食性集团则在全年保持较高的比例,天敌对害虫的控制潜能较弱。
According to the degree of man-made disturbance, the bamboo forest is divided into three types: Moso bamboo, weed bamboo forest and clean bamboo forest. The results showed that the diversity of Phyllostachys edulis plantations decreased according to the order of Moso bamboo forest, Moso bamboo forest and Phyllostachys pubescens forest, which disturbed the Phytosanitary Group, Neutral Group and Natural Enemy Group , Families, species distribution characteristics are very different. At the same time, there are big differences in the distribution of individual species. Taking abandonment management as control, the disturbance of management reduced the abundance, diversity, evenness and individual number of arthropod community in Moso bamboo forests to varying degrees, which increased its superiority and concentration. Among them, the fine management disturbed the community richness and diversity The most significant sexual effects are mainly the reduction of the diversity and evenness of the phytophagous, neutral and predator groups. In the time series, the richness, diversity and evenness of species are at a low level in most of the stages with the intensification of operational disturbance. The dominant concentration is at a high level, which is mainly represented by neutral group and Relative abundance of natural enemies of the group at a lower level, herbivorous groups maintained a high proportion throughout the year, natural enemies of pests control potential is weak.