Describe the hydrological characteristics of Guangning River.

Describe the hydrological characteristics of Guangning River. There are many rivers in the territory, with wide catchment area, twists and turns, long water flow and large drop. There are many rivers in the territory, with wide catchment area, winding, long water flow and large drop, especially Suijiang and Shui Gu, which have the greatest relationship with drought and flood. In rainy season, major rivers such as Shuigu River, Nanjie River, Muge River, Luogang River, Nanxiang River, Binheng River and Luo Fu River all flow into Suijiang River. In addition, the water level of Sihui River in the lower reaches often rises rapidly, which leads to the rise of Suijiang River in Guangning. Therefore, there is a folk saying that "Guangning falls wet stones, which will rise three feet in the fourth quarter, and Dasha will be moved by the mat." If it rains heavily, floods often occur.