研究了稻田节肢动物群落中优势功能集团的垂直空间分布和数量动态规律.结果表明,狼蛛的分布范围不象过去认识的那样广,而是主要分布在稻株的中下部.蛸蛛也不仅仅限制在稻株叶冠层,其在受到农药干扰后,向下部转移.顶位物种与基位物种垂直空间分布的相关性不大.在稻田内影响天敌对褐飞虱种群动态控制作用大小的因素,除了天敌的数量之外,尚有天敌与褐飞虱的空间分布特征,褐飞虱占天敌食谱中的比例等.提出了包含天敌、褐飞虱、中性昆虫的数量动态、空间分布、取食特性等信息的评价天敌作用的模型 The vertical spatial distribution and quantitative dynamics of dominant functional groups in the paddy field arthropod community were studied.The results showed that the distribution range of the tarantula was not as wide as that in the past, but mainly distributed in the middle and lower part of the rice plant. Only restricted to the leaf canopy of rice plants, which was transferred to the lower part by the interference of pesticides.The correlation between the vertical spatial distribution of the top species and the base species was insignificant.Factors influencing the dynamic control effect of natural enemies on the populations of BPH in rice paddies , In addition to the number of natural enemies, there are natural enemies and Nilaparvata lugens spatial distribution characteristics, Nilaparvata lugens Proportion of natural enemies recipes, etc. Proposed contains natural enemies, Nilaparvata lugens, neutral insects quantitative dynamics, spatial distribution, feeding characteristics and other information Evaluate the model of natural enemies