The result of EOF analysis for the North China water resource in summer, in which season the water resource is the most enough, shows that the main space distribution characteristics of the water resource variables, are accordant all over the area.

• 对华北地区水资源最充足的夏季水资源各分量进行EOF分析 ,结果表明 ,华北地区夏季水资源各分量空间分布的最主要特征都表现为全区一致型 ;