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根据日本气象厅1956—1990年PN（G）断面观测资料分析东海黑潮热输送的变异特征，并探讨其冬季热输送与黄淮平原区汛期（6－8月）降水的关系。结果表明，黑潮通过PN（G）断面多年平均的热输送达15．74×1014W，其中冬季热输送的年际和长期变化特别明显；冬季热输送年际变化的周期主要为对．23.4a、3.5a、和2.6a，长期变化总趋势是70年代末以前各年热输送距平均为负值，对年代末接近多年平均值，进入80年代各年距平值不仅为正且逐年增大；东海黑潮冬季热输送与黄淮平原区汛期降水具有相近的长期变化趋势，两者间存在较好的负相关关系。
Based on the observation data of PN (G) section of Japan Meteorological Agency from 1956 to 1990, the variation characteristics of Kuroshio heat transport in the East China Sea were analyzed and the relationship between the winter heat transport and rainfall in the Huanghuai Plain during June to August was also discussed. The results show that the mean annual heat transport over the PN (G) section reaches 15.74 × 1014W, and the interannual and long-term changes of winter heat transport are particularly obvious. The interannual variation of winter heat transport period is mainly opposite. 23.4a, 3.5a, and 2.6a, the general trend of long-term changes is that the average heat transport distance from each year before the end of 1970s is negative. Toward the end of the end of the decade, the average annual value of anomalies is not only positive but also yearly Increasing. The long-term trend of the winter heat transport in the Kuroshio in the East China Sea and that in the flood season in the Huanghuai Plain is similar, and there is a good negative correlation between them.