中文摘要：

文章利用江西省酸雨监测站观测资料，分析了江西省酸雨的影响因素和特征。结果表明，近年来江西省酸雨污染情况有所缓和．江西酸雨呈季节性的变化，夏季酸雨污染较轻，冬季酸雨污染较重．江西省全省都有酸雨污染，但污染程度分布不均。江西的吉安、宜春以及景德镇污染较严重，鹰潭、上饶和萍乡污染较轻。江西省降雨的pH值随降雨量的增加先减小再增大，毛毛雨、小雨和中雨的pH值较小，而大雨和暴雨的pH值较大。综合分析江西酸雨的pH值和酸雨率，利用傅里叶函数的原理给出江西酸雨频率和pH值的数学模型。由数学模型得到的计算值与实际值较好吻合，说明所建的数学模型可以用来预测汀西酸雨的频率和pH值。利用江西酸雨数学模型对未来10年的江西酸雨的频率和pH值进行预测。

英文摘要：

Using observation data gathering by acid rain monitoring stations in Jiangxi Province, the influencing factors and characteristics of acid rain in Jiangxi were analyzed. Results showed that the acid rain pollution in recent years has eased. Acid rain in Jiangxi shows seasonal changes, with its pollution lighter in summer and heavy in winter. Acid rain pollution exists in the Province with various degrees, with serious pollution in Ji＇an, Yichun and Jingdezhen and a little pollution in Yingtan, Shangrao and Pingxiang. pH value in the acid rain decreases firstly and then increases with the increasing of rainfall, with small pH value in drizzle, light rain and moderate rain, and bigger in the heavy rain and torrential rain. Making use of comprehensive analysis of acid rain frequency and pH value and the principle of Fourier function, the mathematical model of acid rain frequency and pH value of Jiangxi are obtained. Calculation value of mathematical model and actual value matches well, which indicate that the mathematical model can be used to predict the frequency and pH value of acid rain in Jiangxi. Finally, the mathematical model is used to predict acid rain frequency and pH value for the next ten years.