河南省地处亚热带向暖温带的过渡地带,气候复杂多样,许多自然条件具有明显的过渡性特色。径流的分布也具有明显的特点:径流的空间分布是南部多于北部,山地多于平原谷地,自南而北逐渐递减;径流的时间分布是年际变化大,年内分配不均,汛期径流量大。 Henan Province is located in the transitional zone from subtropical zone to warm temperate zone. The climate is complex and diverse, and many natural conditions have obvious transitional characteristics. The distribution of runoff also has obvious characteristics: the spatial distribution of runoff is more in the south than in the north, more in the mountain than in the plain valley, and gradually decreases from south to north. The time distribution of runoff is large in interannual variation and uneven in distribution during the year, Big.