Details of Nanluo River (the ancient name of Luohe, a tributary of the Yellow River)

The Luohe River, called Luoshui in ancient times, is an important tributary of the right bank of the Yellow River. Because the Yi River in Henan is an important tributary, it is also called Luo Yi, which is the Luoshui in the ancient Heluo area. Nanluo River is the hydrological name of Luohe River. It originates from Muchagou on the side of Jianyuling in the southwest of Huazhou District, Weinan City, Shaanxi Province, borders Lantian County and Linwei District, flows through the southeast of Shaanxi Province and the northwest of Henan Province, and joins the Yellow River in gongyi city, Henan Province. The total length of the river is 447 kilometers, the length of the river in Shaanxi is 129.8 kilometers, and the length of the river in Henan is 366 kilometers. Total drainage area 1888 1 km2.

Luohe water conservancy development has a long history. Especially in Henan, it is recorded in Water Mirror Notes and Valley Water Notes that a soup canal was built near Luoyang in the Western Zhou Dynasty. Irrigation of farmland with higher terrain by Ilo water in Tang Dynasty was an important geographical condition for the formation of ancient economic and cultural centers. After the founding of the People's Republic of China, especially after the founding of the People's Republic of China, irrigation systems such as Yihe Luhun Irrigation Area, Yidong Irrigation Area, Luoning County Irrigation Area and Yiyang Irrigation Area have been formed and widely distributed and improved. It plays a great role in local economic and social development.

Luohe plays an important role in the development of Chinese civilization. The area centered on the intersection with the Yellow River is called "Heluo area", which is the birthplace of Chinese civilization, and Heluo culture is called the root culture of the Chinese nation.

Basic introduction Chinese name: south section of Nanluo River: Wang Jiong? General situation of main stream, river course, characteristics of river course, hydrological characteristics, general situation of river basin, geography of river basin, civilization of river basin, main tributaries, water conservancy development, Shaanxi Province, Henan Province and general situation of main stream The river course is Nanluo River, a tributary on the right bank of the Yellow River, which was called Luoshui in ancient times. The reach from Yangcun, a tributary of yanshi city, Henan Province, to Nanluokou, Gongxian County is also called Luo Yi River. Located in the southeast of Shaanxi Province and the northwest of Henan Province, it is the only tributary of the Yellow River in the southeast of Shaanxi Province. The hair of Nanluo River source in Gongyi section of Nanluo River originates from the Qinling Mountains at the junction of Huazhou District, Weinan City, Shaanxi Province, Lantian County and Linwei District, with an altitude of 2028.4 meters. Muchagou (Chagounao) on the south side of Longfeng Mountain is Longtan Spring in Luoyuan Town, Luonan County. "Shan Hai Jing" says: "The irrigated mountain (now Tomb Ridge Mountain) has no water." "Water Classic Note" said: "Luoshui goes out of Guanluo Mountain in Shangluo County, Jingzhao, and goes east to the north of Xiong 'er Mountain (now Lushi County, Henan Province). Gong Yu's so-called "attracting Luo Zi from Xionger" is here. " One theory originated from Longtan Spring in Luoyuan Town, Luonan County. Nanluohe River flows southeast into Luonan County, crosses the south-central part, passes through Luoyuan, Di Mei, Jiao Jian (due north of the county), White Temple, Lingkou and Miaowan, and flows into Lushi County near Shahekou. Through Luoning County, Luoyang, Yanshi and other counties (cities), it flows into the Yellow River from the northeast of Gongxian County. Luonan County, originating from Longtan Spring in Luoyuan Town, flows through Zhangping, Baoquan, Di Mei, Bailuo, Zushi, Jiao Jian, Guanqiao River, White Temple, Huangping, Lingkou and Miaowan 12. It flows into the Yellow River at Caolanhekou, Wangling Township, northern Gongxian County, Henan Province. The county's flow is 129km, and the drainage area is 268 1.7 km2, accounting for 96 1% of the county's total drainage area, with a gradient of 7.04‰, and the average runoff for many years is 8190,000 cubic meters. The Luohe River originates from Muchagou, Luoyuan Township, Luonan County, Shaanxi Province, on the east side of the Qinling Mountains, flows through Lushi, Luoning, Yiyang, Luoyang and Yanshi, joins the Yihe River at about 1 km east of Yuetan Village in this county, and flows northeast into the Yellow River through Shendi Village, Gongxian County. Yanshi section, Zeyawang village to Yangchun village is 3 1 km, accounting for 6.8% of the total length of Luohe, with a drainage area of 255 square kilometers, accounting for 27% of the total area of the county. Its riverbed width is 0.5- 1km, its widest point (Xishiqiao) is 2.2km, its narrowest point (south feed) is 0.32km, and its longitudinal slope is about 1/2400. After the confluence of Luohe River and Yihe River, it is called Luo Yi River, with a longitudinal slope of about 1/4000. The riverbed is composed of pebbles and silt, with good water permeability, shallow water, many continents and no navigation. 1954 to 1985 (according to the observation data of Baimasi Hydrological Station), the maximum discharge of Luohe River is 7230 cubic meters per second, corresponding to the altitude of 133.32 meters (1July 95817); The minimum flow is 0.39 m3/s, corresponding to the altitude of128.45m (122 June 960); The highest altitude is 133.72m, and the corresponding flow is 5380m3/s (1982Aug1); Lowest altitude 128.42m (May 24th last year 1978). The annual average sediment concentration is 7. 10 kg/m3. From 1965 to 1978, the average runoff is 19. 15 m3. The main villages on the north bank of Hebei are Longhutan, Xiaowan, Yugu, Hecun, Gucheng, Chengdong, Qianzhizhuang, Xinzhai, Tazhuang, Xisizhuang, Dongsizhuang, Xuzhuang, Wei Yao, Shanyi, Taigou, Zhong Yi, Sigou and Shijiazhuang. On the south bank are Wang Yacun, Xixinzhuang, Xishiba, Sunjiagang, Hetou, Dajiao, Guanzhuang, Beixu, Erlitou, Weizhuang, Guojiatan, Hejiadi, Houmajun and Yuetan. The total length of the river is 447 kilometers. The length of the river in Shaanxi is 129.8 kilometers, the drainage area is 3 145.7 square kilometers, and the average runoff for many years is 883 million cubic meters. (It is said that Shaanxi has a flow length of 124.6km and a catchment area of 3 1 10 km2), which is the upper reaches of the river. Henan is 366 kilometers long. The total drainage area is 1888 1 km2, and the drainage area in Henan is 1577 1 km2, accounting for 83.5% of the total drainage area. According to the characteristics of the rivers in Shaanxi Province, the shape of the Luohe River Basin can be divided into three sections: from the cradle to the upper reaches of Baoquan. The mountain is high and steep, and the water is fast. The altitude drops from 1600 m to 1 100 m, the flow is 28 km, and the average slope is 17-9 ‰. Preserved in Miaowan, it is a relatively open middle reaches of Chuanyuan section. The river course in this section is wide, with beaches and bays in between, with a flow of 75km, and the altitude drops from1100m to 750m, with an average gradient of 4.7‰. There is a great difference between north and south landforms. Mangling Mountain in the south is crosscut, dominated by weathered gneiss, with short rivers, small water volume and much bed load, and a large number of coarse sand grains are accumulated on the river bed, while limestone is the main part in the north, with little weathering and bed load. Miaowan to Caolanhekou is a narrow river valley downstream. The flow is 26 kilometers, and the altitude drops from 750 meters to 679 meters, with an average slope of 3‰. There are rocky mountains, steep valley slopes, steep cliffs and deep ditches on the shore. Hydrological characteristics: Lingkou Station of Nanluohe River has a catchment area of 2,473 square kilometers, with an average annual runoff depth of 278.4 mm and an average annual runoff of 665 million cubic meters. The depth of surface runoff increases with the elevation of topography, and decreases gradually from west to east. There is a low-yield flow area along the river valley, with an annual average of less than 250 mm, which increases in the middle of the South and North Erling along the axis, with an amplitude of 250 ~ 327 mm, which is a medium-low-yield flow area. The middle and high parts of Qin and Mangling are high-value areas, and the area in the north is larger than that in the south. The highest area is in the north of Shimen River Basin, with a runoff depth of 297 mm Lingkou and Miaowan areas are low-yield areas with an average annual runoff depth of about 220 mm due to large evaporation. The groundwater recharge at Lingkou Station is 7.92 cubic meters per second, accounting for 34.7% of the total annual runoff. The coefficient of variation of runoff in Nanluo River is 0.60, which shows the annual cycle of abundant, average and low water. The maximum runoff of Lingkou Station is 1.745 million cubic meters (1.964), and the minimum runoff is 253.5 million cubic meters (1.973), with a height ratio of 6.86: 1. The annual average sediment transport capacity of Nanluohe Lingkou Station is 6.5438+0.73 million tons, the annual average sediment transport modulus is 700 tons /km2, and the annual average sediment concentration is 2. 1 1 kg/m3. The average maximum flood peak discharge of Nanluohe Lingkou Station is 787 m3/s, and the measured maximum flood peak discharge is 2370 m3/s, which occurred in July 1965. The Shaanxi section of Nanluohe River is located at the junction of the Upper Tail Platform Fold Belt on the southern margin of North China Quasi-terrace and the East Qinling Fold System of Chyi Chin Geosyncline. The stratum is limestone and shale, and the channel is mainly gravel structure. Qinling Mountains (Cao Lianling is 2646 meters above sea level) and Huashan Mountains (2 165 meters above sea level) are in the north, Mangling Mountains (the highest point 1744 meters) are in the south, and Nanluo River Valley is in the middle. The general trend is that the northwest is high and the southeast is low, which roughly forms three communities: First, the vast mountainous area north of the main stream is high and steep, with only a few deep ditches. Second, there are shallow mountains and rivers on both sides of the main stream and towns such as Yongfeng, Jingcun, Gucheng and Sanyao. There are relatively complete three-level terraces to form a large-scale Sichuan source, and there are "ten miles and two yuan" and Gucheng River. The soil layer is deep and fertile, which is the main grain-producing area in Luonan County. The Nanluohui Canal, scattered reservoirs and ponds built in 1950s and 1970s provided irrigation conditions for cultivated land in Chuanyuan, which has the characteristics of "Third, the small area of Mangling granite quicksand hilly area in the south is a region with serious soil erosion. The main stream is the Shanxi River above the Wenyu River mouth, with a gradient of 12.5‰, and the average gradient of the whole river is 3.7‰. The meanders below Guanqiao River develop, forming many "camel legs" and "humpback" rivers. The rainfall is about 750 mm, the annual runoff is 757 million cubic meters, and the average flow is 24 cubic meters per second. 1957 The maximum flow rate at Lingkou is 3030m3 per second, and the minimum flow rate is 2.58m3 per second. The annual sediment transport is 4.76 million tons, and the loss per square kilometer is 1530 tons. River Basin Civilization Luohe River Basin is one of the birthplaces of Chinese civilization. The vast area where the Yellow River meets the Luohe River is called the Heluo area, and the regional culture bred, developed, prospered and passed down in the Heluo area is called the Heluo culture. This area is the origin of the name "China". Fuxi lived in Heluo area for a long time and was inspired by River Map to draw eight diagrams. Fuxi's daughter drowned in Luoshui and became a goddess of Luo. For example, the Yellow Emperor is also active in this area, and Qingyaoshan in Xin 'an County is the secret capital of the Yellow Emperor. Di Ku also lives in Yanshi. The legend of Hutuluo takes place in Heluo area. According to legend, during crouching, a dragon horse appeared from the Yellow River, carrying a "river map"; A turtle emerged from the Luohe River, holding a "Luoshu" in his hand. Fuxi drew eight diagrams on this basis, which is the source of the book Zhouyi. Heluo region has long been the capital of a slave country and a feudal country, and the ancient state system and capital system were basically started and completed in Heluo region. Two major social system changes in ancient times, that is, the establishment of slavery and the replacement of slavery by feudalism, are inextricably linked with the capital Luoyang. Heluo area is the platform and birthplace of the five schools of thought. Sima Qian was ordered to write Historical Records in Luoyang, his brothers and sisters wrote Hanshu in Luoyang, Chen Shou wrote The Three Kingdoms in Luoyang, and Sima Guang finished Zi Jian in Luoyang. Shangshu pioneered China's prose works; The Book of Songs is the first collection of poems. During the Western Han Dynasty, Luoyang wrote Zhou Shuo in Chu, which is considered as the first novel. Ci Fu in Han Dynasty, Jian 'an literature, articles in Han and Wei Dynasties and poems in Tang and Song Dynasties all made Heluo literature brilliant. Scientific and technological inventions gather in Heluo area. The bronzes unearthed in Erlitou, Yanshi are the earliest bronzes so far. Du Kang invented wine-making in Luoyang in Xia Dynasty; Zhang Heng created the armillary sphere and seismograph in the Eastern Han Dynasty. Cai Lun created "Cai Hou Paper" in the Eastern Han Dynasty; Ma Jun, an inventor in Wei and Jin Dynasties, invented the keel waterwheel, and water became a hundred plays. Heluo education can be called developed. Erlitou of Yanshi is the summer capital, with the earliest "temple-style university"; Luoyang Imperial College, famous in the Eastern Han Dynasty, is the earliest national university and graduate school in the world. Hongdu School in the Eastern Han Dynasty was the earliest university art school in the world. In the Sui Dynasty, Yang Di established the system of taking scholars in the imperial examination in Luoyang. Wu Zetian initiated the court examination and set up martial arts in the Tang Dynasty. Celebrities who have influenced the social history of Heluo region are Fuxi, Huangdi, Di Ku, Dayu, Shang Tang, Yi Yin, Duke Zhou, Laozi, Su Qin, Bai Gui, Jia Yi, Liu Xiu, Ban Chao, Ban Zhao, Zhang Heng, Cai Lun, Wang Chong, Hua Tuo, Ma Jun, Cao Cao, Cao Pi, Cao Zhi, Sima Yi and Chen Shou. Wu Daozi, Li Guinian, Xuanzang, Shen Xiu, Yituan, Zhao Kuangyin, Zhao Pu, Lv Mengzheng, Ouyang Xiu, Sima Guang, Shao Yong, Er Cheng Brothers, Jian 'an Qizi, Zhulin Qixian and other 24 tributaries in Shaanxi directly flow into Luoyang, among which 10 is the tributary with an area of over 0/00 square kilometers, mainly Wenyu. The water system is asymmetrical, with developed left tributaries, frequent water flows and short right tributaries, and it is a multi-season river. Haoping River, which originated in Huazhou, passes through Luanshiping and Haoping to Baoquan Street, enters Luonan from Wujiayuan and flows into Luohe. The territory is 29 kilometers long, with a drainage area of 127.2 square kilometers, with an average gradient of 29.9‰, a river drop of 753 meters and a constant flow of 0.65 cubic meters per second. The average annual runoff is 36.89 million cubic meters, the low water flow is 0.4 1 cubic meter/second, and the theoretical reserve of hydraulic resources is 6579 kilowatts. The upstream mountains are high, the valleys are narrow, the water is urgent, the cutting force is strong, and the downstream valleys and rivers alternate. Wenyu River, originating from Shuixiantai in Huazhou, flows through Jinduicheng, enters the county from Shizui, crosses Waziping to Di Mei and flows into Luohe. The territory is 32 kilometers long, with a watershed area of 1 18.3 square kilometers, with an average gradient of 24.9‰, a river drop of 567 meters, and rapid water potential. The average annual runoff is 34.3 million cubic meters, and the theoretical reserve of hydraulic resources is 2024 kilowatts. The mountain is high and flat, with a big drop. Maping River originates from Roujiazigou in huayin city, flows into Shimen River from Yanshigou in the north of Xieling Village in Liyu Township, and then passes through Liyu, Maping and Gushan to Shimen Yukou. It is 38.2km long, with a drainage area of 184. 1 km2, an average gradient of 20.9‰, an average annual runoff of 508 1 10,000m3, a constant flow of 0.9m3/s, a low flow of 0.45m3/s and a theoretical reserve of 3529KW of hydraulic resources. The mountains in the upper reaches are high, the valleys are narrow and the water is urgent, and the valleys and rivers in the lower reaches alternate. Shimen River originates from the Daogou of Huanglong Mountain, flows through Chen Ju and Shimen, joins Maping River at Shimen Meiyukou and joins Luojiao River in Jiao Jian. It is 43.9 kilometers long, with a drainage area of 353. 1 km2, a slope of 16. 1‰, an average annual runoff of106.08 million cubic meters, a constant flow of 1.88 cubic meters per second, and a low flow of 0.89 cubic meters per second. Hydraulic resources theory. The mountains in the upper reaches are high and the river is narrow, the river in the middle reaches is wide and the valley in the lower reaches is narrow, and the water is turbulent. Shipo River originates from Kailu Huolongguan, flows through Xunjian, Shipo and Lee Ha from northwest to south, and flows into Luohe at Wangcun, Liangtouyuan. The upper reaches are famous mountains and rivers, the middle reaches are called Yuping River, and the lower reaches are Shipo River. The flow rate is 56.2km, and the drainage area is 662km2, with a gradient of 20.4‰. The annual average runoff184.03 million cubic meters, constant flow 3.27 cubic meters/second, low flow10.34 cubic meters/second, theoretical reserve of hydraulic resources 196 1kW, which is exploitable. There are hydraulic pumping stations and small hydropower stations in Zhifang, Luo Yao, Shipo, Lihe and other places in the middle reaches. Zhouwan River (Xifu River) originates from Wudaogou, Jialu, passes through Kailu and Zhaikou River to Shipo River and flows into Shipo River, with a total length of 38.6 kilometers, a drainage area of 1 17. 1 cubic kilometer, with a gradient of 20.7‰ and an annual runoff of 316. Sangping River, the famous Sier River in the upper reaches and the famous Sangping River in the lower reaches, originated at the foot of Batai Mountain in Qinling Mountains, flowed through Sier, Sang Ping and Lihekou, and merged into Shipo River. The flow is 35. 1km, the drainage area is 183km2, the average gradient is 20.7‰, the annual average runoff is 50.33m, the constant flow is 0.89m3/s, the low flow is 0.37m3/s, and the theoretical reserve of hydraulic resources is 3 183kW. Xiyu River originated in Xiyu, King of Chen Er, and its upstream is called Chener River, its midstream is called Tianmen River, and its downstream is called Xiyu River, which flows into Luohe River at the estuary. It is 40.8 kilometers long, with a watershed area of 1 and 6 1 square kilometer, with an average gradient of 26.7‰, an annual average runoff of 44.27 million cubic meters, a constant flow of 0.79 cubic meters per second, a low flow of 0.24 cubic meters per second and a theoretical reserve of 4389 kilowatts of hydraulic resources. Longhe River, which originated in Miaogou of Miaotai, is called Buzhu River, and flows southward to Nafuzhuang River at Fuzhuangkou, where it flows into Dazhuang River, and southward to Houzhai to join Luohe River. The downstream is collectively referred to as Longjiang. It is 25.8 kilometers long, with a drainage area of 136 square kilometers, an average gradient of 19.9‰, an average annual runoff of 32.64 million cubic meters, a constant flow of 0.58 cubic meters per second, a low flow of 0.40 cubic meters per second, a theoretical reserve of hydraulic resources of 1573 kilowatts, a curved river course and a wide and flat terrain. County River is a secondary tributary of Luohe River. The old record has three names, namely "Wulishui", "Qingshuichuan" and "Liqingchuan". In the 11th year of the Great Cause of Sui Dynasty (6 15), it was named after Wuguchuan (the ancient city) moved to the county. Nianlang originated in Mahe Township, and its upstream is called Xima River (that is, Daqu River), then it flows into Qinwangchuan (that is, Huangbaichuan River) and then into small canal water, turns to northeast along the southwest, passes through Mahe, Xiewan and Chengguan, and then flows into Luohe River in Nianzigou, Taochuan Village, Chengguan. The length of the main stream is 3 1.4km, the drainage area is 1.54km 2, and the river drop is 307m.. The average annual runoff is 4 million cubic meters, the constant flow is 0.7 1 cubic meter per second, the low flow is 0.58 cubic meters per second, and the theoretical reserve of hydraulic resources is 373.4 kilowatts. Xishahe (Jingcun Shahe) is also called Miaoping River. Originated in the oil spring watershed, it passes through Jingcun to Shuangqiao Huihe Chichuan River, flows through the Nasongyu River in Chajiu Mountain and enters Xuelou Luohe River. The main stream is 35.5 kilometers long, the drainage area is 123.5 square kilometers, the river drop is 323 meters, the average annual runoff is 30.87 million cubic meters, the constant flow is 0.55 cubic meters per second, the low flow is 0.25 cubic meters per second, and the theoretical reserve of hydraulic resources is 860 kilowatts. Due to the serious weathering and denudation of granite and red gravel layers in the upstream, fine sand is deposited in the downstream channel. The ancient city of Shahe originates from the Liu Ling trough of Laojunyu on the north side of Mangling, flows northward through Xiaoqinyu River, Gaohe River, Hejiang River to Yeshan, and then flows through Hanxigou River, where it flows into Luohe River. The main stream is 35.5 kilometers long, with a drainage area of 157.9 square kilometers and a river drop of 349 meters. The average annual runoff is 39.47 million cubic meters, the constant flow is 0.683 cubic meters per second, the low flow is 0.24 cubic meters per second, and the theoretical reserve of hydraulic resources is 1.604 kw. Its characteristic is that there are many seasonal rivers, which will dry up after a long drought. When the flood broke out, the yellow sand silted up and hit the fertile fields of coastal villages. After the founding of People's Republic of China (PRC), national social cooperation and collective forest farms were established, afforestation was carried out, ditches were closed and dams were built, small watersheds were managed, and basic farmland was built. Zhugou and Jiagou reservoirs were built on the tributaries, and the Red Cross Canal was dug in the ancient city to divert water for irrigation, making the coastal areas the main grain-producing areas. Dongshahe (Sanyao Shahe) is located in the southeast of the county seat. Its upstream is Jijia River, which is called Dongsha River from the east of Sipohe Village, flows through Sipo along the east, turns to the northeast, and flows into Luohe at Tujia mouth. It is 4 1.2km long, with a drainage area of 355km2 and a river drop of 359m. The average annual runoff is 33.47 million cubic meters, the constant flow is 0.59 cubic meters per second, the low flow is 0.39 cubic meters per second, and the theoretical reserve of hydraulic resources is 3,908 kilowatts. It is characterized by quicksand deposition, mixed sediment flow and serious discharge landslide. Jijiahe River, which originated in Woniushigou, Maliantan, an ancient city, flows to Sipohe Village along the northeast, and the downstream is called Shahe. It is 26.5 kilometers long, with a drainage area of 133.9 square kilometers and a river drop of 38 meters. The average annual runoff is 8.52 million cubic meters, the constant flow is 0. 15 cubic meters per second, the low flow is 0. 10 cubic meters per second, and the theoretical reserve of hydraulic resources is 1636 kilowatts. Caolan River, located in the southeast of the county seat, originated in Xuegou, Cao Lan, and is a transit passenger water. It flows northward from the tomb to the mouth of Caolan River and enters the Luohe River. The county is17km long, with a drainage area of 48km2 and a river drop of 96m. Average annual runoff 1 1.52 million cubic meters, constant flow of 0.204 cubic meters per second, low flow of 0. 10 cubic meters per second, and theoretical reserve of hydraulic resources of 35 1 kw. Its characteristics are: the upper reaches are limestone landforms, the mountains are high and the valleys are deep, and the water flows rapidly; There are patches of farmland in the lower river bend. In Henan Province, the Yihe River is the largest tributary of the Luohe River, which originates from Zhangjia Village at the northern foot of Funiu Mountain in Luanchuan County, passes through Songxian County, Yichuan City and Luoyang City, and joins the Luohe River in Yangcun Village of Yanshi County, with a length of 265 kilometers and a drainage area of 6,029 square kilometers. Luo Yi Luo Hui Canal Irrigation District is a water conservancy development project in Shaanxi Province, located in Liangyuan, 40 miles northwest of Luonan County. The total length of protecting Luohe River is 63.2 kilometers, from Mogoukou in Zhangping Township to Cao Zhang Village in Chengguan Town. The irrigation area governs Baoquan, Yongfeng and Duishan districts, and 52 villages in 9 townships (towns) of Chengguan Town and Weidong Town. The facility irrigation area is 38,200 mu, and the effective irrigation area is 22,200 mu. It is the largest water conservancy project in the county. " Bitter gourd is a hundred rivers, and drinking water is difficult for people and animals. "Before the founding of the People's Republic of China, the people of Liangyuan suffered from waterless and dreamed of the Luohe River Plateau. 1957 * * * The Luonan County Party Committee and County People's Committee decided to build the Luohuiyun River Water Conservancy Project with the economic construction of Luonan as the center according to the urgent demands of the people. After investigation and design, it was reported to the provincial and local authorities for approval, and construction started on September 5th. 1958. At that time, 40 cadres and 3,000 militiamen were deployed to form the Luo Huiyun River Engineering Combat Team, which had a military establishment. Feng Peizhi, the county magistrate and secretary of the county party committee, is the political commissar, and Zhou, the minister of the county armed forces, is the deputy political commissar, specifically responsible for various projects. Carrying forward the spirit of hard struggle, the battle group climbed the wall and cut through the wall, and successively opened 26 suspended rocks and 29 steep peaks such as Jiguan Mountain, Tiger Rock, Longshan Rock and Shenxian Cave, and opened the 12.5km stone canal project in September, 1959. 654381October 26th, mobilized 10000 laborers and1000 cadres to open a soil canal project in Liangyuan. By1October 5th, 165438, 3 1.5km soil canals were basically opened. On February 6th, at 65438+65438, a water-supply ceremony was held in Xiwa construction site. * * * Shangluo prefectural party committee secretary attended the meeting to congratulate, and Shangluo Commissioner Guo cut the ribbon. Shaanxi Daily reported the news and published an editorial. xi 'an Film Studio filmed a news documentary. After the completion of the main canal, it will be continued for four times:1May 1960 to1961May 0. The reconstruction of Shuixiyu-Heigetagou section, with a tunnel length of 934.6m, cut off the main leakage canal in Bird and shortened the channel by 65,438. 1962, Heigetagou-Gulou River Tunnel is opened to1826.8m, and supporting projects such as flood discharge bridge are built to turn the dead reservoir of Gulou River Reservoir into a living reservoir; 1976, expansion of main canal, 8.3km from Xinyue Reservoir to Liwan, and from Houyu to No.4 Middle School in Jiaocun, Nangan Canal11.6km; In the second half of 1979, another tunnel was built from Longshan cliff to Shuixiyu Baozigou, which shortened the main canal by 2 kilometers. After the Luohui Canal is completed, it will supply water to three reservoirs with a total storage capacity of 5.9 million cubic meters and 90 ponds and dams with a total storage capacity of 720,000 cubic meters every year. At the same time, 27 wells were drilled downstream, 20 pumping wells and 63 mobile sprinkler irrigation stations were built. The total investment of the project is 8.5 million yuan, including 68 1 10,000 yuan invested by the state, 654,380+690,000 yuan raised by the commune and brigade, and the total investment is 6,543,80310.5 million yuan. During the project, Zhang Yongyin, Yao Chengsheng, Zhang Jicai, etc. 16 people died gloriously, and 6 people including Yan were disabled due to injuries. 1993 to 1994, provinces, prefectures and counties jointly invested in the establishment of comprehensive agricultural development projects in irrigation areas. Newly built branch and bucket canals167.8km, with an effective irrigation area of 23,000 mu. Flood control project During the Republic of China, the water of Baililuo River flooded, and the yellow sand in Mangling was accompanied by hydraulic fields, which often caused floods. 1956, Yangcun Advanced Agricultural Production Cooperative in Bailuo Township mobilized the masses to build riverbanks on Luohe Beach, planted trees 10000, set up forest farms, and protected farmland 1000 mu. Heitan Village, Baoquan Township, Jiaocun Village, Lingkou Township and other places followed this practice, laying stone dikes along the river, planting willows outside the dikes, and planting mulberry trees inside the dikes, killing two birds with one stone. At the end of 1970s, the county implemented four major harnessing projects of "Luoxiang River", organized forces to make unified planning along Luohe River and its main tributaries, and organized coastal mass construction by means of dry masonry (mortar masonry in a few dangerous sections), planting trees outside the dam, and filling the sea in the dam, and built 845 flood control dams10 km in total, protecting and building 60 new farmland. The flood control projects in Baoquan, Di Mei, Bailuo, Jiao Jian, White Temple, Huangping, Lingkou and Miaowan are solid, which have played an important role in fighting floods and crossing the flood season. Luohe water conservancy development in Henan Province has a long history. "Water Mirror Note Valley Water Note" said that a soup canal had been built near Luoyang in the Western Zhou Dynasty. In the Tang Dynasty, high-lying farmland was irrigated with water from Iraq and Luoshui. In the Qing Dynasty, there were canals, Wulong Canal, Tongji Canal, Luoqu Canal, Yi Canal, Daming Canal, Xinxing Canal, Yongtong Canal, Canal and Renjieyuan Canal in Luoyang County. During the period of the Republic of China, there were 49 irrigation canals in Lushi, Luoning, Luoyang, Yanshi, Songxian and Yichuan counties, with an irrigation area of several hundred mu. There were five canals over 10,000 mu, including Daqing Canal, Daqu Canal, Guluo Canal, Xieji Canal and Luoyi Canal. The total irrigation area of 6 counties is 6.5438+0.9 million mu.

After the establishment of People's Republic of China (PRC), Luohe water conservancy has been further developed. 1949 ~ 1955, sorting out old canals and digging new ones; 1956 to 1960, building reservoirs, drilling wells and opening canals are in full swing; 196 1 year later, adjust and consolidate the existing projects and develop steadily. 1987, including the tributary Yihe River, there were large reservoirs 1 seat, 9 medium-sized reservoirs, 73 small reservoirs, and 0/79 small reservoirs1657.62 million cubic meters.

(1) Yihe Luhun Irrigation District, named after taking water from Luhun Reservoir. Irrigation areas are distributed on both banks of Luhun Reservoir in Songxian County, north of Ruhe River in Linru County, east of Jiaozhi Railway in Yichuan County, pioneer on the west bank of yi river, west of the second Yangshun Canal, and north of South Wanan Mountain in Yanshi County. There are two canals above the reservoir area, Yi Bei and Inan. The first canal is located on the banks of Yi Xi River in Nanzhifang Township, Songxian County, and leads the Yi River to the banks of Luhun Reservoir in the northeast. There are three main canals 1 below the reservoir area, with a total length of 298 kilometers. Both the main canal and the main canal are built in 1970, and the water is discharged in 1974, with the designed irrigation area of1340,000 mu. In 1980s, the irrigation area was 400,000 mu, with a maximum of 600,000 mu.

(2) Yidong Irrigation District, Yidong Canal was built in 1924, with a total length of 9 kilometers and an irrigation area of 6,000 mu. After the expansion of 1950 and 195 1 year, the canal length is 22km, and the irrigation area is increased to18000mu. The second reconstruction is in 1959, the canal length is 3 1.5km, the designed water diversion is 1 1.7m3/s, and the actual water diversion is 8.5m3/s. The irrigation area covers the north of the main canal, the east and south of yi river, the west of Taohuadian and the valley plain on the south bank of yi river in Yanshi County. The cultivated land is 6.5438+0.4 million mu, and the designed irrigation area is 6.5438+0.2 million mu. In the 1970s, the irrigation area was 80,000 mu.

(3) The diversion irrigation area in Luoning County is located on both banks of Luohe River in Luoning County. There are two main canals on the north bank, and the second one is one of 1967, with a total length of 38 kilometers. Rebuilding the first sluice of the Dragon Canal is called the Loki Canal. Nan 'an main canal 1, with a length of 4 1 km, is called Loki South Grand Canal. The second canal irrigates the rivers on both sides of Luohe River in Luoning below Changshui Town, with an irrigation area of more than 70,000 mu.

(4) Yiyang diversion irrigation area, distributed on both banks of Luohe River in the county, has four main canals with a total length of 72. 1 km and a total diversion flow of 24 cubic meters per second, which irrigates 50,800 mu of land in 48 villages in five towns of Yiyang County and Longmen City of Luoyang City.

(5) The irrigation area in the southern suburb of Luoyang City is located in the Yi and Luojiahe areas, north of Longmen and south of Luoyang City, with cultivated land area of about 1.45 million mu. Irrigation canals are mostly from Luohe River, including Daqing Canal, Daqu Canal, Guluo Canal and Yi Canal, with a total length of 34 kilometers. After the founding of People's Republic of China (PRC), Daqing Canal was changed to Daxin Canal, and Guluo Canal was merged into the large open channel, collectively known as Luonan Canal. Irrigation area19.507 million mu,1964120,000 mu,19.8085 million mu.

(6) Zhongzhou Canal Irrigation District, dug in 959, with a canal length of 50 kilometers, irrigates 84,000 mu in the suburbs of Luoyang, Jin Meng and Yanshi.