利用我国近500年旱涝等级资料和公元1500年以来的El Nino事件的记录，用合成分析方法，讨论El Nino事件的有关年份，中国东部夏季降水的空间分析特征。对1500—1990年间101例El Nino事件所作的El Nino当年的旱涝等级合成图表明：多雨地带在东北、黄淮地区和广东沿海，而干旱少雨地带在内蒙—甘肃和长江中下游地区；这101例El Nino事件结束后的第一个非El Nino年的合成图，则表明其旱涝分布型几乎正好与El Nino当年的相反。1951—1990年间的9例El Nino事件当年
Based on the historical El Nino records and the yearly dryness/wetness grade data in China during the 1500—1990 A. D., the composite dryness/wetness grade charts of El Nino year, and the first non-El Nino year after ending the El Nino event for 101 cases have been done, respectively. They show the deficient rain areas are distributed in the regions of Inner Mongolia—Gansu Provinces and the Lower-Middle Changjiang River, and the plentiful rain areas in Northeast China, Huang-Huai River region and Guangdong coastal area for the El Nino years. In the first non-El Nino year after ending the El Nino event, the precipitation pattern is almost opposite to that in the onset year. For the total 9 cases occurred in the 1951—1990, the distribution of plentiful rain areas and deficient rain area appears to be similar to that on the composite charts of 101 cases for the last 490 years, whether in the onset year or in the first non-El Nino year. Furthermore, the composite charts for each century show that some main features are still similar to that for 490 years. So, the common distributive features mentioned above appeared in the past 490 years, 40 years and each century can be considered as the typical precipitation pattern correlated with the El Nino events in the eastern China.