General situation of main stream of Diaojiang River

Diaojiang River originates from the west slope of Tang Han, Chehe Town, Nandan County, Guangxi Zhuang Autonomous Region, and is a first-class tributary of the north bank of Hongshui River in Xijiang River system of Pearl River Basin. It flows from Wuxu Township in Hechi City to the northeast of Du 'an County, passing through Fu Shang, Shangzhi, Nongliu, Shangyou, Ban Ling, Yongle, Yongshun, Yongren and Yongfu in Ban Ling Township. Ertan and Renshou in Laren Township; Jiu Si, Jiudu, Jiuru and Jiuling in Jiudu Township; Yan Fu, Wang Ba and Lalie in Lalie Township; Baiwang Township has 22 administrative villages in Lu Ting, Baiwang, Renhe, Jingxi and Fu Ba, and it joins the Hongshui River in Nahaotun, Fu Ba Village, Baiwang Township. It has a total length of 237 kilometers and a total drainage area of 3,604 square kilometers. The widest riverbed in Du 'an County is100m, the narrowest is 50m, the undercut depth is15-18m, and the total gradient is 1. 15‰.