【摘要】 运用模糊聚类分析方法研究了棉田蜘蛛群落的时间动态,根据聚类结果,把棉田蜘蛛群落的发生发展分为2个不同阶段:即群落的稳定发展阶段和不稳定发展阶段。更多还原

【Abstract】 The method of fuzzy cluster analysis was used to study the time dynamics of spider community in cotton field, based on the richness ,diversity index, total individual numbers , PIE, evenness. And two stages were divided,namely:the stable developing stage and non -stable developing stages of the com-muinty.更多还原