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六安地区棉铃虫种群消长的自然调节因素量化指标探讨 被引量:1

Quantitative Analysis of Natural Factors Adjusting Population Dynamics of Cotton Bollworm
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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.
作者 王林 卫小玲
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
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