The main tributary of the Gunhe River.

There are 9 tributaries in Zaoyang, 145 streams (25 of which are directly injected into the urban area), which fan into the main stream from north to south.

Shahe, called Longshui in ancient times, has been renamed Shahe since Yuan Dynasty because its riverbed is full of sand and no mud, and it is the largest tributary on the north bank of Gunbei River. Originated in Qifengfeng in Suizhou and the foothills of Chai Jia, it enters Zaoyang from Sanhedian, passes through Xinshi, Reuters and Jihe, goes around Zaoyang to the east, reaches Tupu to the south, and joins Gunhe River in the southeast delta of Wan Cheng Town, with a total length of more than 80 kilometers. The upstream riverbed is about 50 meters wide, and the potential is steep and fast, while the downstream riverbed is about 100 meters wide, and the potential is flat and slow. There are 6 tributaries and 26 streams. The basin covers an area of 7 17 square kilometers, and the upper reaches are Archean gneiss and red sandstone, with serious weathering losses and much silt in the riverbed. Rivers change greatly, with a dry season of 0.38 cubic meters per second. In case of flash floods, the maximum discharge can reach 1876 cubic meters per second. According to the records of the old county annals, there were three floods in April of Jiaqing 17th year, July of Xianfeng 5th year and March of Guangxu 25th year. After the founding of New China, seven medium-sized reservoirs and 10 small reservoirs were built, turning floods into water conservancy.

He Xiong, called Xushui in ancient times, is the largest tributary on the south bank of Gunzi River. It originates from Wulongguan in Dahongshan District, flows northward through Chehe, Linping and Xiong Ji, and joins Gunhe River in the east of Jiangjiahuayuying in the west of Ji Liang. It is 45 kilometers long and has 14 tributaries. The basin covers an area of 390 square kilometers. Runoff changes greatly, with the flow rate of 0.2 m3/s in dry season and the maximum flow rate of 1540 m3/s in summer. According to the old county records, in May and June of the thirty-second year of Guangxu reign in Qing Dynasty (1906), "two floods were the wonder of our city". After the establishment of People's Republic of China (PRC), large and medium-sized reservoirs 1 seat and small reservoirs1seat were built.

Huayang River is named after Huayang Mountain (formerly known as Baishui). As the source of the Gunhe River, it flows through Chace and Xinglong and flows into the Gunhe River in the southeast of Wujindian, with a total length of 40 kilometers, large and small streams 1 1 and a drainage area of 220 square kilometers. After the founding of People's Republic of China (PRC), 1 large and medium-sized reservoirs and 3 small (I) reservoirs were built.

You River, the original famous two rivers. Originated at the northern foot of Yashan Mountain. Huigang Township and Erlang Township in Wudian Town, which flow through the central city, inject rolling river water into Liangzui, with a total length of 30 kilometers. There are five streams flowing in. Watershed area 130 km2. After the establishment of People's Republic of China (PRC), there are 4 medium-sized reservoirs 1 seat and 4 small (I) reservoirs.

Qingtan River, called parrot water in ancient times, is also called Kunshui. Originated in Mumaling, Suizhou, went to Qinghedian and flowed into Zaoyang. Beiliu flows through Qingtan and Tangdian, and flows into Gunhe River in Huangcun, 2.5 kilometers east of Wudian Town, with a total length of 40 kilometers. There are 18 streams with a drainage area of 300 square kilometers. Fast flow rate, deep river bed cutting and easy to be affected by mountain torrents. After the establishment of People's Republic of China (PRC), there were 4 medium-sized reservoirs 1 seat, 4 small (I) type reservoirs and 6 small (II) type reservoirs.

The Five Rivers Originating in Shenglong Mountain. It flows through Zishan in the northwest and joins Gunhe River in the northwest of Jinyingang, with a total length of 25 kilometers. Five streams flow into Hanoi with a drainage area of 83 square kilometers. After the establishment of People's Republic of China (PRC), 1 medium and small (I) reservoirs were built.

He Yinghe River originates from Bashan Mountain and flows into Gunhe River in Chendian, downstream of Wangcheng County, with a total length of 20 kilometers. Six streams flow into the river, with a drainage area of 65,438+000 square kilometers. After the establishment of People's Republic of China (PRC), there will be a medium-sized reservoir 1 seat and two small (I) reservoirs.

Dabanqiao River, which originates from zhang wan around the city, flows through Dabanqiao in the east and south of Southwest Railway Station and joins Gunhe River in Xie Zhuang in the northwest, with a total length of 20km and a drainage area of 1 km2. At the same time, it is injected into Xiaoqiaozi River and Caogang River.

Guangou, originating from Qifanggang, flows westward through Guangou Reservoir and flows into Gunhe River in Xiangyang County, with a drainage area of 77 square kilometers. There are four rivers: Wangzhai River, Dagou River, Dadupo River and Shendafang River.