永定河何时真正“永定”刘树芳流经华北平原的永定河，古名漯水，湿水，漯余水，又称浑河，卢沟河。元代曾称其为小黄河，亦称无定河。永定河上游桑干河、洋河，分别发源于山西和内蒙古高原，两河在河北省怀来县朱官屯汇流后称永定河。其上游流域属黄土丘陵区和河川区湖积... When the Yongding River really “Yongding” Liu Shufang flows through the Yongding River in the North China Plain, the ancient name Luo water, wet water, Luo Yu Shui, also known as Hun River, Lugouhe. Yuan Dynasty had called it a small Yellow River, also known as Wuding River. The upper reaches of the Yongding River Sanggan, Yanghe, respectively, originated in Shanxi and Inner Mongolia Plateau, the two rivers in Huailai County, Hebei Province Zhuantun confluence Yongding River. The upper reaches of the basin is a hilly loess area and river area plot ...