摘要
根据 1976~ 1999年六安地区棉铃虫测报资料 ,选取耕作制度、寄主作物、气候、棉田生态等相关因素 ,采用相关性普查 ,从中筛选出主导因子。采用模糊聚类分析 ,确定多因子组合对棉铃虫各世代发生期、发生量综合调节作用的量化指标 ,经历史回检可信度达 0 .
Based upon the forecasting data of cotton bollworm during 1976-1998,the dominant factors were picked out by correlatively analysis of the factors:farming system,host plants, whether elements and ecological conditions of cotton field. The role of combination of multi-factors in comprehensively adjusting the occurrence period and degree of cotton bollworm of different generations were quantitatively analyzed by means of fuzzy clustering method.The reliability was up to 0.7 according to the fitting with historical situations.That provided the basis of forecasting and quantitative analysis of breakout cause of cotton bollworm.
出处
《安徽农业科学》
CAS
2000年第2期189-190,193,共3页
Journal of Anhui Agricultural Sciences
关键词
棉铃虫
种群消长
自然调节
量化指标
发生规律
Western Anhui, Cotton bollworm, Population dynamics, Natural adjusting, Quantitative index