摘要
根据群落生态学原理 ,为了利用天敌资源开展石榴园害虫的生物防治 ,明确主要害虫及其天敌发生的时间动态和数量动态 ,对不同时期的石榴园节肢动物总群落、亚群落进行了模糊聚类 .结果表明 ,总群落的 8次调查结果可聚为 4类 ,D =0 0 5 ;天敌亚群落调查结果可聚为 4类 ,D =0 10 ;非天敌亚群落调查结果可聚为 3类 ,D =0 0 9.聚类部分反映了总群落和亚群落各自的状况 ,聚类交替现象则反映了群落结构在较长时间内的复杂性 .最优分割结果将不同时期的总群落、各亚群落均分割为 3段 (4～ 8月、9～ 10月、11～ 11月 ) ,表明各阶段物种种类、物种数及优势种等指标在发生时间上存在差异 .
Based on the principles of community ecology and by the method of fuzzy clustering,this paper studied the temporal and quantitative dynamics of the arthropod community and sub-community in megranate orchard,aimed to utilize natural enemy resources for pests control.The results showed that both of total community and natural enemy sub-community could be grouped into 4 clusters,and non-natural enemy sub-community could be grouped into 3 clusters.This clustering reflected the complexity of the community structure.The optimal cut-apart could divide the total community and sub-community into 3 stages,i.e.,April-August,September-October,and November.
出处
《应用生态学报》
CAS
CSCD
2004年第8期1435-1439,共5页
Chinese Journal of Applied Ecology
基金
国家农业综合开发省级科技资助项目 [NF2 ( 2 0 0 1) 15 11]
关键词
石榴园
节肢动物群落
动态
Megranate orchard, Arthropod community, Dynamics.
