1, Shiyang River is an inland river, located in the east of Hexi Corridor in Gansu Province. The upper reaches are mountainous rivers, and the tributaries are Gulang, Antelope, Zamu, Jinta, Xiying, Dongda and Xidahe. Collect snow and ice melt water and precipitation in Lenglongling, Wushaoling, Mao Mao Mountain and other mountainous areas in the east of Qilian Mountain. After coming out of the mountain, it entered the Hexi Corridor Plain, where the river leaked seriously and the river was cut off. The underground undercurrent ash machine becomes a spring, and the spring water gathers into a spring river such as flood, Baita, Yangxiaba and Haicang Temple. Many rivers in spring flow into Shiyang River in Wuwei City, flow northward into Minqin County, then flow northward through Hong Yashan Reservoir, enter Minqin Oasis, and finally flow into lake areas (namely, Guxiu Tuze, Baiting Sea and Qingtu Lake, which have dried up).
2. The length of Shiyang River is 162km, and the annual runoff is 5170,000 cubic meters, which is mainly replenished by groundwater, and mountain torrents also account for a certain proportion in summer. The water quantity is regulated by Hong Yashan Reservoir, which is the water source of Minqin Oasis.