The main tributary of Beiru River

There are 20 tributaries of Ruhe River in Ruyang, including 7 tributaries/kloc-0, with a drainage area of 1 km2, namely:

Notes on Water Classics called Malan River "Three Tun Valley Waters".

Originated in the south of Lianghe Village in Wang Ping Township, it flows northward through Wang Ping, Santun and Chengguan, and joins Ruhe River in the north of Guiyu Village in Chengguan Town.

With a length of 6 1.5km and a drainage area of 229.4km2, it is the second largest river in Ruyang.

The average slope of the river is1100 ~1/200.

The average runoff depth is 309 mm, and the runoff is 70.89 million cubic meters.

Jincun River, originating from the south of Sandaogang in Song County, enters Pailu Village in Fudian Township and flows northward to the east of Houyin Village in Jincun Township.

After entering Song County, it flows into Twill River and into Ruhe River.

In Ruyang, the main stream is 44.5 kilometers long and the drainage area is 2 15.7 square kilometers.

The river slope is about1100.

Abundant water, big drop.

The average runoff depth is 350 mm, and the runoff is 75.49 million cubic meters.

Twill River originates in the middle of Nanshan, Shizhu Village, Fudian Township, flows northward to Liukeng Village, Shibapan Township, enters Songxian County in the west, joins Jincun River and flows into Ruhe River.

The territory of Ruyang is 35 kilometers long, with a drainage area of 15 1.8 square kilometers. ..

The river slope is1100 ~1/200.

The average runoff depth is 350 mm, and the runoff is 53 1.4 million cubic meters.

Niujiahe, known as "Guangcheng" in the Notes on Water Classics and "Guangrun River" in the history of Jin Dynasty, originated in Caidian village, flowed eastward through Heneibu township, arrived at Wei village in Ruzhou city and merged into Ruhe River.

In Ruyang County, the main stream is 22 kilometers long and the drainage area is 9 1.03 square kilometers.

Average runoff depth 170 mm and runoff15.48 million cubic meters.

Banpeng River originates from Gushigou, Liudian Township, the northern foot of Xi 'an, flows northeast to Shengwangtai Village, Xiaodian Township, and joins Ruhe River in Ruzhou City.

The total length of the county is 2 1.5km, the drainage area is 54. 1 km2, the average runoff depth is 2 10mm, and the runoff is 1 1 ten thousand cubic meters.

Hunchun River originates from the northern foot of Qingliangzhai, flows northward through Santun, Shibapan and Zhuyuan Township, and joins Ruhe River at the junction of Zhuyuan, Baishu and Shangdian Township. Its main stream is17km long and its drainage area is 46.55km2..

The river slope is1100 ~1/200.

The average runoff depth is 270 mm, and the runoff is 654.38+02.57 million cubic meters.

Baishuhe originates from Jiu Hao Mountain in Yichuan County, enters Ruyang County from Longbo Village in Bai Shu Township to the west, and flows eastward to the southeast of Bai Shu Village to join Ruhe River. Ruyang county is 12km long with a drainage area of 34.93km2 ..

The average runoff depth is 2 10mm, and the runoff is 7.34 million cubic meters.

Hutao River originates in the southwest of Guo Hua Village in Santun Township, flows northward to Shangdian Village, and joins Ruhe River in the north. Its main stream is 1 km long, with a drainage area of 34.5 square kilometers, an average runoff depth of 250 mm and a runoff of 8.63 million cubic meters.

Guandi River originates from Huamiaogou in Liudian Township and flows northward through Guandi Village in Xiaodian Township into Ruhe River, with a total length of 9 kilometers and a drainage area of 26.9 square kilometers.

The average runoff depth is 200mm, and the runoff is 5.38 million cubic meters.

Geta River, with a total length of14km and a drainage area of 25.95km2, originates from Nanlaozhuanggou, Muzhuang Village, Shibapan Township and flows northward into Caojia Village, Shangdian Township to join Ruhe River.

The average runoff depth is 20 mm and the runoff is 6.23 million cubic meters.

Luoyu River originates from Wang Jiagou in the north of Guanyuan Village in Chengguan Town, flows to Luo Yu Village in the south and joins Ruhe River in the south. Its main stream is 8 kilometers long and its drainage area is 24 square kilometers.

The average runoff depth is 185 mm, and the runoff is 4.44 million cubic meters.

Goujian River originates from the northwest of Hongjian Village in Chengguan Town, flows southeast to the west of Guyanzhuang to join Ruhe River, with a total length of 10.5km, a drainage area of 2 1.7km2, an average runoff depth of 185mm and a runoff of 4.02 million cubic meters.

Manliu River, which originates from the concave walnut tree in the northwest corner of Bai Shu Township, flows south to Manliu Village and south to Ruhe River, with a total length of 10.5km. ..

The drainage area is 19. 1 km2, with an average runoff depth of 200mm and a runoff of 3.82 million cubic meters.

Luogou River, which originates in the northwest of Zhang He Village in Chengguan Town, flows south to Luogou Village and south to Ruhe River, with a total length of 7 kilometers and a drainage area of 14.7 square kilometers.

The average runoff depth is 200mm, and the runoff is 2.94 million cubic meters.

Shagou River originates from Xujiagou, Xiaodian Township, and flows northeast to Ruzhou, the hometown of Xichefang, where it joins Ruhe River.

In Ruyang County, the total length is 6.5 kilometers and the drainage area is 13.7 square kilometers.

The average runoff depth is 185 mm, and the runoff is 2.54 million cubic meters.

Lianxi Sigou River originates from Huzhaigou in Xiaodian Township and flows southward to Ruhe River from Luokou, with a total length of 6.3 kilometers and a drainage area of 10.5 square kilometers.

Average runoff depth1.85mm, runoff 1.94 million m3.

Guiliuhe River originates from the south of Liucun Village in Shangdian Township, reaches Runan Village (Zhuyuantou) in the north and flows into Ruhe River in the west, with a total length of 6.5 Li, a drainage area of 10.2 square kilometer, an average runoff depth of 235 mm and a runoff of 2.4 million cubic meters.

Stone River, which originated in Ruzhou City (formerly Linru County), has two sources: Nanyuan is at the foot of Wuduo Mountain in Linru County, also known as "empty dry river"; Beiyuan is called "Shiban River" under the watershed of Zhuang Lin County.

The second source winds eastward into the county seat and reaches Gaodian Village, Kannonji Township.

It passes through Qianying Township, Shangjiuwu Township, Zhaozhuang Township and Shiqiao Township, reaches the intersection of Shuangkou Village and Jingchang River in Naodian Township, turns northeast, and flows into Beiru River east of Luzhai Village in Shiqiao Township.

The flow in the county is 63.5 kilometers long, the riverbed is 20 meters wide on average, and the drainage area is 4 17 square kilometers. It is a perennial river with a maximum flow of 858 cubic meters per second.

Since the Ming and Qing Dynasties, the middle and lower reaches of the Yangtze River have repeatedly opened canals to divert water, but due to poor management, they are often flooded.

Since 1957, the river course has been comprehensively treated, and medium-sized reservoirs and eight small reservoirs in longxing temple have been built, which has controlled the surge of the river in flood season.

The Jingchang River, which runs through the middle of the county seat, was called water around and white water in ancient times.

According to legend, Jia Fu, Hou Jiaodong of the Eastern Han Dynasty and Wang Mang fought with the tomb in the northeast of the city, and suffered heavy losses and their bellies were broken. They washed their stomachs with river water in the northeast corner of the city and put them in their stomachs. They fought again and finally cut the tomb.

Later generations admired his loyalty and courage, so they called it Jingchang River.

This river has two tributaries: the south tributary is called Huan Shui, which originates in the west of Taoyuangou Village in Kannonji Township, flows through Daying Town and Zhangbaqiao Township, and enters Xiaoqi Township; The northern branch is called "Little Mud River", which originates near Gu Duo Village in Daying Town, flows eastward, and enters Xiaoqixiang via Qian Ying and wine industry.

Dai Yuhe, which originated from Baishipo and Zhaigongzhuang in Daying Town, is formed by the confluence of several streams. It re-enters the county town through the western area of Pingdingshan City, flows eastward through Zhangbaqiao and Xiaodian Township, reaches the west of the county town, and turns northward into Jingchang River.

Qing Qianlong's "Baofeng County Records" contains: "Yudai River is the ear of Li Zhu.

When Emperor Xiaozong of the Ming Dynasty was Huanglingtai, he changed the west water to the north water and turned it into cypress water to surround the city, which was called Jade Belt.

The total length is 2 1km, the average width of riverbed is 8m, and the drainage area is 47km2. This is a perennial river.

1959, Hechen Reservoir was built upstream to control the flood.

Magou River, located in the north of the county seat, is a perennial river.

It is said that in ancient times, there were abundant water plants on the floodplain, which was named after many herders grazing here.

It originates from the south tiger and wolf climbing in Linru County, flows into the south of Mozhongying Village in Zhaozhuang Township, and flows into Beiru River in the north of Haisi Village in Shiqiao Township, with a length of 1km and an average river width of1m. ..

The basin covers an area of 37 square kilometers.

After liberation, comprehensive management was carried out twice, which improved the drainage capacity of the river and alleviated the flood disaster along the coast.

Liuhe River originates from Liushugou Village at the northern foot of Weizi in Suncitang Township, and belongs to the flood discharge channel in shallow mountainous area.

From south to north, it flows through administrative villages such as Majiangou, Zhangzhuang, Liulou, Xuelou and Ningzhuang. , flows into the North Ruhe River in Liucun.

It is 13km long, with a drainage area of 7 square kilometers.

Mahuang River originates from Lu Xiao Township in Yuxian County and flows through Wang Luo and Shilipu Township, with a length of about 15km and a drainage area of 25km2.

Inject Beiru River into Zhengzhuang Village, Shilipu Township.

It is a drainage river, which is usually dry and often flooded in flood season.

1964 is treated according to the flood control standard of "once every three years".

Embankments are built on both sides of the river. The bottom of the main river is 6 meters wide and 3 meters deep, and the supporting projects for waterlogging control have been completed one after another.

The river, which originated in Zhongtou Township, Jia County, flows into the county seat in the village and flows into the Yellow River through Yao Village in Hexi.

It is 4 kilometers long and has a drainage area of 29 square kilometers. It is a seasonal drainage river with cross-flow of flood in flood season.

1964 flood control is carried out according to the standard of "once every three years", dikes are built, rivers are dredged, culverts and sluices are built along the river, and the flood disaster in rainy season is basically alleviated.

In Songxian County, Ruhe River in the north, the riverbed is narrow and the water potential is fierce, and floods often occur in summer and autumn.

14 small reservoirs, such as Louzigou, Fugou, Xiao Mu Gully, Mianhua Gully, Zhanghuaigou and Zhaigou, were built on the main and tributary of Ruhe River in 1986, and 16 flood control works were built along the river.

667 hectares of land were reclaimed from the beach.

Tang Hong River embankment was built at 1989, with a length of 1000m, a height of 7m and a width of 3m.

All the bricks and stones are used to protect 70 people and 2.7 hectares of cultivated land.

Lutun River embankment was built at 1992, with a length of 1200m, a height of 2.5m and a width of1.5m.. ..

Grouting masonry, protecting 150 people, 13 hectares of cultivated land.

Nanzaoyuan River embankment was built in 1996, with a length of 600 meters, a height of 3 meters and a width of 2 meters.

Masonry protection, protection of 1 10 population and 6.7 hectares of cultivated land.

1998 Hedong dike of Huang Zhuang village was completed, with a total length of 2,000m, a height of 4m and a width of 6.5m ..

Mortar masonry protection, protection of cultivated land 6.7 hectares; In the same year, an 800-meter Xiao Mu dyke was built, and 2 hectares of land were reclaimed.

In 2000, the investment was 6.5438+0.2 million yuan, and the immigrant berm in Muzhijie Village was completed with 654.38+0.000 meters, all of which were cemented.

Ruyang County, North Ruhe River, due to poor governance in history, every rainstorm, the river surges, destroying crops and flooding houses, posing a serious threat to people's lives and property along the river.

During the Republic of China, Shen Ruying, a gentry of Shangdian, distributed grain money to local farmers, and built a 400-meter-long dam on the northern floodplain of Shangdian, protecting more than 400 mu of land.

Buddy Yuan Jinxiang built a 300-meter dam on the north beach of Zhuyuantou Village (Runan Village).

Later, Chengguan and Xiaodian also spontaneously organized dams along the river.

At that time, the river dams were all single loach dams. Except for the jointing and black alum plastering with white mortar in Shangdian North River Beach and Xiaodian Malaoba, the rest are mostly dry masonry or white mortar plastering, and the river is washed away when it rises slightly, so the flood control efficiency is very low.

In the early days of the People's Republic of China, the county organized 54,600 people to invest in Shangdian, Chengguan and Xiaodian areas, built 2,970 meters of dams and reclaimed 4 160 mu of land.

1962, the county built 7,555 meters of restoration and reinforcement projects, protected 30 natural villages13,638 people and 6,704 mu of cultivated land, and transformed 22 19 mu of tidal flats.

1964, the county * * completed masonry134,900 cubic meters, bank slope sand sealing140,500 cubic meters, wire cage 7 172 square meters, shelterbelt trees 1300 trees, and built and strengthened.

1975 The Ruhe River flood broke out, destroying 8,550 meters of dikes, 870 mu of old land and 3,950 mu of floodplain land.

That winter, with the support of superiors, comprehensive management was carried out. After three years, 260,000 cubic meters of mortar masonry, 29 kilometers of new dam, 7,000 mu of new beach land, and 8,000 mu of old beach land were restored 1.98 1 year. Ruhe Management Office was established, with chengguan and Shangdian. 1July, 982, the Ruhe River has a flood peak with a flow of 8400 cubic meters per second. Except for the county bridge and Ziluokou, an important dike section, most dikes on both sides of the river were washed away.

1983 on the basis of summing up the experience and lessons, the single dam type was changed into three types: slurry slope protection type, gravity dam type and loach dam type, and 77 dikes were reinforced, with a total length of 23,630m, 435,500 workers, a total engineering volume of 266,400 cubic meters and a total investment of 320,000 yuan (the state allocated 270,000 yuan and 50,000 yuan)

After 1984, Ruhe Dam was repaired and strengthened year by year through winter and spring, and a new dam embankment was built in the dangerous section.

By the end of 1988, the county had built dikes 144.27 kilometers, including 23.8 kilometers of Ruhe River, 0.20.45 kilometers of tributaries/kloc-0, and 37.3 kilometers of dike greening.

These dike projects can protect 57,960 mu of cultivated land and 66,630 residents.

Ruhe River meets Yexian County, 7 kilometers long.

Before the founding of the People's Republic of China, the levee was only 1.7km, with a height of 1m and a top width of 0.5 m. Floods often overflowed the levee and caused disasters.

After the founding of People's Republic of China (PRC), coastal people reclaimed dikes three times at 1966, 1976 and 1978, which widened the Ruhe levee in the county.

After the restoration, the river bank is complete and reaches the "five links" standard required by the province.

In addition, stone revetment and Wangzhuang North Culvert Project, 350 meters in Wangwan Village and 200 meters in Wangzhuang Village, have been newly built.

1952, the state invested 220,000 yuan to build and reinforce 18 dike project for 40 kilometers, and completed 10 dike project.

The locust pond in the upper reaches of Ruhe River in Xiangcheng County is a famous dangerous area in history, which has been seriously damaged for a long time.

The embankment was built in the fifth year of tomorrow (146 1), and it was gradually abandoned in the reign of Emperor Kangxi of Qing Dynasty.

In the 11th year of Yongzheng (1733), the county magistrate ordered Fang Hong to rebuild the levee, but there was no levee along the river in Fangyao Village, and several more levees were added.

In order to prevent the water on the west side of the levee from leaking out, and the stone is a culvert, it can be opened and closed at any time.

During the Wanli period of the Ming Dynasty, Zhu Yunxiu, a magistrate of a county, built a stone dike in the southwest corner of the county to protect the city from water invasion, commonly known as "Zhu Gongdi".

In 2 1 (1932) of the Republic of China, He Gong Zhao Xiu Department repaired the third section of earthwork project, including 16 Ruhe earth embankment project, and newly built and repaired the moon embankment with a length of 5218m.

Two stone dikes, 32 meters long and 18 meters long, were built on the river bank outside the south gate of the county. There are two stone dams on the river bank outside Kuimen, and there is a 1 stone dam on the river bank in Sanligou, which is 34 meters long. The south gate is built outside 1 herringbone dam with 690 cubic meters of stone.

The southwest corner of the county is close to Ruhe River, and the city wall is only 3 meters away from the riverbed.

The river near Kuimen turns to the south, forming a backwater vortex.

During the flood season, the water is turbulent, and the city foundation is often eroded by swirling water, forming a deep pool over time, commonly known as "Erlangtan".

In the late summer of the 28th year of the Republic of China (1939), the river surged, the city wall fell, and the county town was seriously threatened.

After investigation, the restoration plan was drawn up; Mobilize the whole city residents for emergency rescue.

Six bluestone archways in the main street were demolished and put into into the pit. The city foundation was tamped with miscellaneous stones and loess, and the red stone wall was built for flood control.

After the establishment of People's Republic of China (PRC), from 1950- 1959, a water storage and flood detention project was built in Ruhe River basin to increase ground coverage and control soil erosion. And build dikes as long as 120 km on both sides of the Ruhe River; For Chengguan, Sanligou, Cigou, Huo Yan and other places prone to bank collapse, stakes, stones and cement are used for slope protection and reinforcement respectively; Aiming at the dangerous area of Erlangmiao mine in Chengxiang, a diversion and filtration project was implemented.

In the spring of 1962, a large number of dike improvement and other flood control projects were carried out along the Ruhe River, including dike reinforcement and new construction in1July, and two stone revetment projects.

1 in the spring of 1963, 6 dangerous and annual repair projects of Ruhe River were repaired, with the dike length of 3.05km.1bank protection with stones.

1964, completed 10 Ruhe revetment project.

1965, reinforce the whole embankment of Ruhe River.

1From March to August, 1976, 5 road embankments were built in Ruhe, with a length of 14.6438+0 km.

1976, the dam project of Zhangruhe old stadium in the south of Zhongyoudian was completed, and the water source of the old stadium was cut off.

1978 completed the restoration and reinforcement project of the upstream Chengguan-Ludu dike.

1May, 1980, the dike on the left bank from Dachenzha to Nanguan Bridge was repaired and strengthened, and the width of the original dike top was widened from s meters to 7 meters.

At the same time, the bank protection project of Weizhuang city in the middle reaches of Ruhe River from the south gate of Chengguan to Shantoudian commune began to be prepared and repaired, and was completed on June 198 1.

19831-August, completed the water damage project caused by 1982 flood in the form of contract. Seven moon dikes and dikes were repaired, with a length of 5 kilometers, and four new stone revetments were built, with a length of 755 meters, and six were renovated.

After treatment, the ability to resist floods has been enhanced.

Chen Da Gate of Beiru River is a key project in Xuchang area of the Middle Route of South-to-North Water Transfer Project.

It is located in the lower reaches of Beiru River, southeast of the county 10 km, and in the northeast corner of Chen Da Village, Shantoudian Township.

1959 broke ground, but it was suspended due to lack of funds.

Construction started again in June 1970, and the first sluice floor was poured in September 1972, which was stopped because it was not included in the provincial capital construction plan.

1973 10 was approved by the provincial water resources department, which put forward new technical design and requirements for the project and started construction for the third time.

1974 Da Chun

Construction of the main sluice project began.

In the construction, the technology is constantly innovated, and the bottom plate of plane gate is changed into the bottom plate of inverted arch gate, which saves raw materials and speeds up the progress.

At the same time, more than 40,000 migrant workers were organized to dig rivers and build supporting projects.

* * * Liu Jianxun, First Secretary of Henan Provincial Party Committee, visited the sluice site to inspect and guide the work.

1 July, 9751Completion, Li, deputy commander of the production headquarters of the Provincial Revolutionary Committee, cut the ribbon to boil water.

The whole project has 2.7 million cubic meters of earthwork, 39,000 cubic meters of masonry, 6.5438+0.46 million cubic meters of concrete, 3.65438+0.000 million workers and 5.29 million yuan invested by the state.

The main project of the sluice is constructed according to the flood control standard of 20-year return period, with the designed flow of 3,700 cubic meters per second, the total width of the sluice139.8m, the hole width12m, the pier height10.55m, the elevation of the sluice bottom plate m.s meters (flush with the river bottom) and the elevation of the sluice top 79f.

There is a highway bridge at the gate, 6 meters wide, 13 ton freight car.

The pier elevation is 82.05 meters and the water surface elevation is 83.05 meters.

The beam elevation of hoist is 92.45 meters, and the roof elevation is 96.7 meters. ..

The gates are all reinforced concrete structures.

There are three floors of Building 1 at both ends of the gate, which are closely connected with the hoist room.

Ruhe Chen Da Sluice, Heyinghua Navigation Sluice, Ruhe Wuwan North-South Counterpart Sluice, Fangyaodong Branch Main Canal Diversion Sluice and Cigou Sluice * * * together form the South-to-North Water Diversion Hub of Yingru Irrigation Area in Xuchang area.

The upper and middle reaches of the Ruhe River control an area of 5,960 square kilometers, with a self-storage capacity of140,000 cubic meters and a river water storage area of 5,600 mu. More than 200,000 mu of gravity irrigation area can be developed, with pumping irrigation 1 50,000 mu,1975 July1,and the pilot project of 10,000 mu in Yingru irrigation area is released, with 65,438+.

1978 On June 14, the FAO delegation of the United Nations Development Programme went to Xiangcheng and visited the gate hoist room, automatic control room, various instruments and equipment, and supporting projects for dike management and irrigation of Ruhe Chen Da Gate.

This comprehensive water conservancy project was highly praised, and a "commemorative medal" with FAO logo was presented to Yingru Irrigation District Administration.

A main canal is located in the southeast of Xiangcheng County, starting from the upper reaches of Ruhe Chen Da Sluice in the west, reaching Cigou Village in the east, extending southward along Ruhe River to Fu Miao in Dingying Township, turning to Zhang Cun in Jiangzhuang Township in the southeast, crossing Dingying and Jiangzhuang Township, with a total length of 9.6 kilometers, a canal bottom width of 2.5 meters, and a design flow of 5- 10 cubic meter/second.

Three branch canals are excavated in the main canal basin, and they are diverted to the east: one canal starts from the south of Cigou Village in the upper reaches of the main canal in the west, passes through the east of Cigou Township, Mailing Township and the north of Jiangzhuang Township, and reaches the Linying County boundary in the east, with a canal length of 12.05km, a canal bottom width of 1-2m and a designed discharge of 4.58 m3/s; The second main canal starts from the middle reaches of the main canal in the west to the north of Liu Tie Village, Cigou Township, passes through the middle of Mailing Township and reaches the Nie Nan River in the middle of Jiangzhuang Township in the east. The canal length is 3. 1 km, the canal bottom width is 1 m, and the design flow is1m3/s; The three branch canals start from Hengliangdu, Dingying Township in the west, extend from north to east, and cross Mailing, the south of Jiangzhuang Township and the border of dongzhi county. The channel is 7 kilometers long, with a bottom width of 1. 1 m and a design flow of 2.06 cubic meters per second.

Excavate bucket canals and agricultural canals along three branch canals, leading to farmland.

The whole canal project was surveyed and designed in 1974, started in 1975, and the supporting works were completed in 1979.

The second main canal starts from Jiazhuang Wenhua River in the north of Cigou Township in the west, connects with the main canal of Yingru Irrigation District, passes through Cigou and Fanhu Township, and connects with the main canal of Yingru Irrigation District, Wenhua River and Liangyun River in the east of Liang Yun, with a total length of 1 1.2km and a canal bottom width of 4-6m.

There are four branch canals: one canal has a length of 1 1.24 km, a bottom width of 1.8 m and a design flow of 2.97 cubic meters per second; The length of the second branch canal is 14.72km, the bottom width is 1.7m, and the design flow is 2.74m3/s: the length of the third branch canal is 18.85km, the bottom width is 1-2.4m, and the design flow is 3.67m3/s; The length of the four canals is 1 1.76 km, the bottom width is 1.5 m, and the design flow is 2.69 cubic meters per second.

The survey and design of the passage project was carried out in 1974, the whole line was constructed in 1975 and completed in 1979.

The total length of the main canal in the county is 33 1 km, the total length of the branch canal is 28 1 km, and the total length of the bucket canal is 4 10 km.

By 1987, the annual irrigation area was between 65438+ 10,000 mu.

Yuma Reservoir is located in Ruyang County, the middle reaches of Malan River, a tributary, at the foot of Xianshan Mountain. The dam is a weathered rockfill dam with inclined clay wall, with a bottom length of 1.27m, a top length of 254m and a dam height of 50m. It is a medium-sized reservoir mainly for irrigation, comprehensive utilization of power generation, flood control and fish farming, with a basin area of 1 km2 and a total storage capacity of 6 million cubic meters.

The irrigation area includes a vast area from Malan River to Shankou in the south, Banpeng in the east, Geta River in the west and Ruhe River in the north. It is 20km long from east to west and13km wide from north to south. It spans 5 towns and 42 administrative villages of Santun, Liudian, Shangdian, Chengguan and Xiaodian. The total length of the main canal is 3.2km, and the flow rate is 10.

There are 2 sluices, 30 tunnels, 7817m long, 4 culverts14m long, 5 culverts, 657m long and 38 aqueducts1765m long in the whole irrigation area.

The largest Yuma Pass aqueduct is 220 meters long and can pass 4 cubic meters per second.

Yuma Power Station was completed and put into use in 1982. When it was first built, it was equipped with three groups, with a total capacity of 2 175kW and an annual power generation of 3.08 million kwh.