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本文介绍模糊聚类分析应用于农田杂草群落分布和危害研究中的技术。采用七级目测草害方法，调查获取杂草群落数量特征的资料，经综合值公式转化，进行模糊聚类分析。根据各样点的生态因子，选择截集水平，分出各别的聚类群。最后，用综合草害指数评价各聚类群的杂草种群危害值，明确各类型的优势杂草和种群，对农田杂草群落结构以定量分析，为杂草防除提供可靠依据。
This paper introduces the technology of fuzzy clustering analysis in the study of the distribution and hazard of farmland weeds. Seven levels of visual grass-breaking method were used to investigate the data of the characteristics of weed communities. The data of the weed communities were investigated and transformed into fuzzy clustering analysis. According to the ecological factors of each sampling point, the level of cutoff is chosen to separate the individual clusters. Finally, the weed index was used to evaluate the weed population damage value of each cluster group. The dominant weeds and populations of each type were identified. The quantitative analysis of the weed community structure in the weed was provided to provide a reliable basis for weed control.