Lipu River

Lipu River

Lipu River, formerly known as Lishui, Lijiang

It is a tributary of Guijiang river, a tributary of Qianjiang section of Xijiang River. It is the main river in Lipu County of Guangxi Zhuang Autonomous Region. It originates from the north foot of the old mountain of Dayao Mountain in Jinxiu Yao Autonomous County, flows through Jinxiu Yao Autonomous County and Pingle County, and flows into Guijiang river.

The river is 144.67 km long,

The main tributaries are: Maling River, Limu River, Datang River, etc.

General situation of main stream

Lipu River, formerly known as Lishui, Lijiang

It is a tributary of Guijiang river, a tributary of Xunjiang section of Xijiang River. It is the main river in Lipu County of Guangxi Zhuang Autonomous Region. It originates from the north foot of Laoshan Mountain in Dayaoshan of Jinxiu Yao Autonomous County, flows from the southwest to the northeast from Xiaohekou of longdaoshan of Jinxiu Yao Autonomous County, and passes through Shangpu, Zhongpu, Xiapu, Shiwei, Niancun, Jianling, Tashi, Xinhekou, dashigu, shangjinlei, Shadong, Licheng, Yulei, Shangshang, Xiafu, tielu, gonglai and Shanshan The Meizizhou of yusigong village flows into the boundary of Pingle county.

Pingle County flows through Shilong village and Jiaoyi village, and joins Guijiang River in Tangzha village of Fucheng town.

The length of the river is 144.67 km, of which 94.7 km is in Lipu County, with a drainage area of 1602.65 square kilometers, accounting for 91% of the total area of the county.

Pingle county has a river length of 7.87 km, a catchment area of 78.67 km2, and an average flow of 51.51 M / s.

hydrographic features

According to the calculation of water mark, the peak discharge on June 23, 1929 reached 3640 cubic meters per second, and the corresponding water level elevation was 145.86 meters. On May 10, 1982, the flood discharge was 1830 cubic meters per second (Lipu hydrological station), and the corresponding water level elevation was 143.59 meters, which was the largest flood since the liberation of Lipu. The annual average discharge at the exit of Lipu County is 26.6 cubic meters per second, the runoff depth is 828 mm, and the runoff is 1.616 billion cubic meters (including passenger water). The elevation of the entrance estuary is 350.0 meters, the exit estuary is 98.0 meters, and the riverbed slope is 10%.

Main tributaries

The tributaries flowing into Lipu County are as follows:

Maling River, the largest tributary of Lipu River, originates from the east side of Jiaqiao ridge in the county. From west to East, it flows through shangshilian, Shimen, Mugen, Dajiang, Hongtou, Baitan, Huazhen, Shuangjiang, Maling and Xili to shankoutun of Dongzhen Township and joins Lipu river.

Limu River, a tributary of Lipu River, originates from the west side of zhutou in the county, with an elevation of 1355.6 meters and a drainage area of 115.23 square kilometers. It flows from south to North and joins Lipu River in Hebei Province through Liziping, changyuanping, Longpan, dongwa, Dade, Limu street and Luoyin. The river is 38.4km long, with an average annual flow of 2.98m3/s and a flow of 0.7m3/s in dry season. The average river width from dongwa to Hebei is 60m, and the riverbed slope is 25.6 ‰. The main tributaries are tongjingcao River and Danzhu river.

Datang River, named after it flows through Datang street, is a tributary of Lipu river. It originates from the east side of Jianqiao County, with an elevation of 400 meters and a drainage area of 112.78 square kilometers. It flows from west to East and joins Lipu river through Niugang, Shuangxi, Menlou, Dajian, Datang street, Damo, Pancun, zhaijiao, Liju and Gangdi to Yaocun. The river is 38.2km long with an average annual flow of 2.44m3/s.

Xingping River, named after Xingping township (later renamed Xinping), is a primary tributary of Lipu river. It originates from taiping'ao in Balu village in the county, with an elevation of 714.5 meters and a drainage area of 119.29 square kilometers. From south to north, it flows through Taiping, Balu, Chetian, Hantian, Qinglong, Liantang, Xinping street, xiasu and hululing to join Lipu river. The river is 22.4 km long, with an average annual flow of 3.03 m3 / s and a flow of 0.5 m3 / s in dry season. The average width of the river from Hantian to hululing is 50 m, and the riverbed slope is 38.8%. The main tributaries are Shideng River and Xingyi river.

Dumo River, a tributary of Lipu River, originates from xinzhaiding, Liubu village, with an elevation of 502.5 meters and a drainage area of 128.34 square kilometers. It flows from south to north, through sanzhichong, Liubu, Xiazhang, Gudong, Pingtang to shuihulu, passing through three caves to form an underground river with a length of about 1150 meters, and then through Ganying, Qiaotou, Panlong, Gaodong, matitang to shajie to join Lipu river with a length of 28.5 meters The annual average flow is 2.8 cubic meters per second, and the flow in dry season is 0.3 cubic meters per second. The average width of the river from Ganying to shajie is 60m, and the riverbed slope is 31.7%. The main tributaries are Jinji River and Longzhu river.

Pulu River, a large tributary of Lipu River, originates from zhanmian mountain at the back of dakuodian in Pulu Yao Township, and flows through a stone wall in the northwest of huowen village to form a waterfall. The elevation of the source is 1054 meters, the drainage area is 195.44 square kilometers, and the territory is 187.77 square kilometers (7.67 square kilometers flow into Pulu River in Jinxiu Yao Autonomous County in the upper reaches of Sangao River). It flows from north to south, and flows into Lipu river through Renchuang, Lichun, Dujiangyan, Pulu street, Chaxiang, Guocun, Gubu, Hejiang and Lijiang to Longtoushan of Qingshan township. The river is 49.9 km long with an average annual flow of 4.91 cubic meters per second. The main tributaries are Sangao River, Tunliu River and Nadui river. There is a medium-sized reservoir, Guxin reservoir.

Longping river is the first tributary of Maling River and the second tributary of Lipu river. It originates from the boundary of three counties in Yangshuo County. The elevation of the source area is 1170 meters, and the drainage area is 137.61 square kilometers. Among them, 123.36 square kilometers flow from north to south in the county. It flows through Longao and qinglongkou in Yangshuo County, suchongkou, pingchongkou, Liuzhai, longpingjie, Gutian, Hengling, Guanxiang and Miaohua in the county, and joins Maling River in Liangjiang street. The river is 43.8 kilometers long, and 35.6 kilometers long in the county. The annual average discharge is 3.54 cubic meters per second, the discharge in dry season is 0.25 cubic meters per second, and the river bed garbage drop is 23.7 ‰. The main tributaries are Ganbi and Guangdu.

There are also three river primary tributaries, which originate from Gucheng mountain of Mengshan and flow into Lipu River from Qingshan, with a river length of 28.2 km and a drainage area of 80.03 square km; Huangdong primary tributary, which originates from jinxiulanchang and flows into Lipu River from xiurennian village, with a river length of 2.8 km and a drainage area of 4.94 square km; jiangbu secondary tributary, which flows from the high bank of Datang township to the high bank of Maling town Guang'an flows into the Maling River. The total length is 27.6 km and the drainage area is 86.76 square km.

General situation of water conservancy

Waterway shipping

At the end of the reign of Emperor Guangxu of Qing Dynasty, Lipu river was navigable to xiuren town. Due to the obstruction of jinleiba under the jurisdiction of Lipu County, the channel was blocked. The governors of xiuren and Lichong gathered the gentry, merchants and shipowners of the two counties. After investigation and consultation, they held a meeting on July 25, 1907, and set up a monument to announce that they would be navigable forever. In the early 1950s, the Lipu river was still navigable. Wooden boats with a load of less than 10 tons could travel from Wuzhou and Pingle to Licheng. Later, due to the lack of water in the river, the obstruction of water conservancy facilities and the siltation of the river bed, it was not navigable since the winter of 1957.

flood control works

Before liberation, the government had no preventive measures against floods. After liberation, a big flood occurred in April 1954. From dashigutun in Qingshan township to hululingtun in Xinping Township, the riparian Bank of Lipu River collapsed in 6 places, destroying 12 mu of paddy field. Because of the flash flood, the river bank collapsed and the farmland was damaged by the flood. From 1956 to 1965, the people's Government of the county invested 18000 yuan in the construction of the flood dike, building the flood dike or straightening the river. The Xinping river is about 4 km away from liantangtun in Anmin village to poshangtun in Guangfu village. It has been protected with large stones and achieved good results. By the end of 1987, the county had built 31.3 kilometers of flood dike and protected 12270 mu of cultivated land. After 1987, the state invested another 20000 yuan to build embankments and revetments in the two sections of the Longping river. The embankments were 1.2 km long and 2-3 m high. All of them were built with cement mortar and stone blocks, which were completed in 1989.

Since the 1960s, the reservoirs in the county have been gradually built. From above the hydrological station, Lipu river has built 12 small (second) reservoirs, including one medium-sized reservoir, with a total rainfall collection area of 163.09 square kilometers, accounting for 18.16% of the basin area. The normal water level storage capacity is 25.43 million cubic meters, accounting for 2.99% of the annual runoff. Lipu River in the county within the Yu, Zhi river, has built more than 44 small (2) reservoirs, including a medium-sized reservoir. The total controlled rainwater collection area is 470.52 square kilometers, accounting for 23.8% of the basin area. The normal water level storage capacity is 91.64 million cubic meters, accounting for 4.81% of the annual runoff. Because the reservoir plays the role of water storage, the peak flow is relatively reduced, and the flood disaster is reduced. However, the upper reaches of Longping, Limu, Liujian and other main and branch rivers are prone to flood in some areas due to the lack of backbone reservoirs and concentrated precipitation. On May 16, 1987, there was a sudden rainstorm in Yongfu and Tongfu of Shuangjiang Township, Tongshan of Maling Town, Guli and other villages of Pulu township. The water of Maling River and Longping River surged, affecting 8465 households, submerging 11575.37 mu of early rice and destroying 4173 mu of farmland, resulting in an economic loss of more than 6 million yuan.

Diversion works

Republic of China 2

Chinese PinYin : Li Pu He