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根据统计分析，江苏省淮北各地的年、季雨量标准值（离均系数）具有均一性特点，采用标准正态化的各代表站点的雨量均值作为地区雨量代表值。采用标准正态分布的分位数加模糊子集的雨量分级方法，划分旱涝级别。运用统计学的聚类分析方法，将江苏省淮北地区划分成八类旱涝年型，提出防汛抗旱决策结论
According to the statistical analysis, the standard values of annual and seasonal rainfalls (mean-off coefficients) of all the areas around Huaibei in Jiangsu Province are of the sameness, and the average rainfall of each representative site in the standard normalization is used as the representative of the rainfall in the area. The standard normal distribution of quantile plus fuzzy subset rainfall grading method, the division of drought and water level. By using the method of cluster analysis, this paper divided the area of Huaibei in Jiangsu Province into eight types of drought and flood years and put forward the conclusion of flood control and drought relief