前人研究表明,水稻白叶枯病年度间的流行程度变化主要取决于气候因子.但在气候诸因子中就单因子指标报道为多,可是气候诸因子对病害流行程度的影响,并非确定性的关系,而是综合影响的模糊关系,且病害发生接近流行与非流行之间也没有严格的界限.模糊数学对病害流行学的渗透,使对具有模糊性的过程和现象进行比较精确的数量化有了更大的可能. 鉴于区域性气候诸因子存在差异,研究气候因子对水稻白叶枯病的综合影响, Previous studies have shown that the prevalence of bacterial blight changes during the year mainly depends on the climatic factors, but in the climatic factors on the single-factor indicators as many, but the impact of climate factors on the degree of disease epidemic, not the certainty , But the fuzzy relationship of comprehensive impact, and there is no strict boundary between disease occurrence near epidemic and non-epidemic. The penetration of fuzzy mathematics to disease epidemiology makes the fuzzy number of processes and phenomena more accurate There is a greater possibility.With the differences in regional climate factors, the study of the impact of climatic factors on bacterial leaf blight,