Weihe River
Weihe River is the largest tributary of the Yellow River, originated in China's Gansu Province Weiyuan County bird mountain, by the Shaanxi province Tongguan into the Yellow River. Weihe River length of 818 km, including Gansu, Ningxia, Shaanxi provinces, with a total area of 134766 square kilometers, of which Shaanxi accounted for 50%, Gansu accounted for 44%. The upper reaches of the Weihe River and the north shore of Jing River, Luo River and other tributaries, through the Loess Plateau, carrying a lot of sediment. The eastern part of the Weihe River Basin is the Weihe River Plain; the western part is the loess hilly and gully region. The river into the Weihe River has a gourd River, Qing Jiang River, Mai River, stone river, Jing River, Luo River. Ancient Chinese history for the purpose of irrigation and water transport, built a channel. In 246 BC, the Zheng Guoqu of the Qin Dynasty cited the Jinghe River to the Luo River, the canal, the Han Dynasty when the white corridor cited Jing River to the Weihe River, Jing Hui drainage, Wei Hui drainage, Luo Hui drainage channels, these channels are mainly concentrated in the Weihe River Of the middle and lower reaches. ...