苏南地区小麦纹枯病发生流行动态的模糊聚类分析  

Fuzzy Cluster Analysis of Occurrence and Epidemic Dynamics of Wheat Sharp Eyespot in the South of Jiangsu Province

作　　者：陆长婴[1] 季明东[1] 傅华心 韩梅[3] 王裕中[4] 

机构地区：[1]江苏太湖地区农科所,苏州215155 [2]江苏省武进市植保站,武进213017 [3]江苏省植保站,南京210013 [4]江苏省农业科学院植物保护研究所,南京210014

出　　处：《江苏农业学报》2000年第4期222-225,共4页Jiangsu Journal of Agricultural Sciences

基　　金：江苏省重大科技攻关项目 !(BG96 5 12 -2 )

摘　　要：应用模糊聚类分析理论和方法 ,对武进市 1995年、1996年小麦纹枯病的发生流行动态进行预报。选取分辨力较高的聚类指标 ,截取λ=0 .6 ,可分 3类。对预测结果与实况对照进行比较 。This paper forecasted the occurrence and epidemic dynamics of wheat sharp eyespot in Wujin by using the theories and methods of fuzzy cluster analysis from 1995～1996 Cluster indices with higher resolving power were selected and λ=0 6 was intercepted,then the epidemic dynamics of the disease could be divided into 3 types.It was proved according to the comparison between forecast and reality that the epidemic year type analyzed by means of fuzzy cluster was identical with the experiential year type.

关 键 词：小麦纹枯病 模糊聚类分析 发生流行动态 

分 类 号：S435.121.4[农业科学—农业昆虫与害虫防治]