江苏省不同区域小麦纹枯病发生流行动态的模糊聚类分析  

FUZZY CLUSTERING ANALYSIS OF OCCURRENCE AND EPIDEMIC DYNAMICS OF WHEAT SHARP EYESPOT IN THE DIFFERENT AREAS OF JIANGSU PROVINCE

作　　者：陆长婴[1] 季明东[1] 傅华欣 刘文娟 仇广灿 韩梅[5] 王裕中[6] 

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]江苏省泰兴市植保站,泰兴225400 [4]江苏省盐都县植保站,盐都224001 [5]江苏省植保站,南京210013 [6]江苏省农业科学院植物保护研究所,南京210014

出　　处：《上海农业学报》2002年第1期63-68,共6页Acta Agriculturae Shanghai

基　　金：江苏省重大科技攻关项目 (BG96 5 12 2 )

摘　　要：应用模糊聚类分析的理论和方法 ,对苏南地区的武进市、苏中地区的泰兴市和苏北地区的盐都县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 ,可分为 3～ 4类 ,预测结果与实况比较 。The occurrence and epidemic dynamics of wheat sharp eyespot in Wujin,Taixing and Yandu areas which are in the south, middle and north of Jiangsu Province respectively was forecasted by using the theories and methods of fuzzy clustering analysis.Clustering indices with higher resolving power were selected and λ=0.6 was intercepted, the epidemic dynamics of the disease could be divided into 3 or 4 types. Comparing the forecasting results with the actual conditions showed 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 模糊聚类分析 发生流行动态 预报 区域 江苏 

分 类 号：S435.121.4[农业科学—农业昆虫与害虫防治] S431[农业科学—植物保护]