Management and development of Lalin River

During the period of 7-9 years of Manchukuo (1940- 1942), the Japanese puppet rulers forcibly recruited rural laborers and built dikes along the right bank of Xilalin River, Anjia in Wuchang County and Yingchengzi, with a total length of about 36.3 kilometers. These dikes have low construction standards and weak flood control ability. After liberation, the people's government organized the people to persist in building water conservancy projects every year to control water disasters. 1950 to 1980, rural laborers were mobilized for many times to build dikes along Lalin River, Mangniu River and Xilang River for flood control. The total length of the dike is 232 kilometers, of which the length of Lalin dike is 123 kilometers, which basically meets the design standard, and the flood control benefit can protect 246,900 mu of farmland. Xilang River embankment is 20 kilometers long and can protect 29,400 mu of farmland. Mangniu River embankment is 89. 14 km long, which is an unfinished project. The dike is intermittent, which has not yet reached the design standard and the flood control benefit is poor. Because there is Longfengshan reservoir in the upper reaches to stop the flood, the water damage is not serious for many years. Later, the existing dikes were repaired and strengthened year by year, and the flood control capacity was continuously enhanced.

The Lalin River Embankment in Shuangcheng City is formed by connecting the civil embankment at 1956, bending straight, heightening and thickening. Along the right bank of Lalin River, it starts from Qianwu, Zheng Qian Village, a mountain town, passes through Qianjin, Lanling, Jincheng and Handian, the opposite town, and connects with Songhua River levee at the lower mouth of Zengchan Village in Bandung Township, with a total length of 65.54 kilometers. 1956 reached the highest water level in history (14 1.4m), and the peak flow was 4030m3/s ... Newly built river banks, loose dikes, 13 exit. /kloc-in June of 0/0, the breach was renovated and reinforced. 1960, 1962, 1965 were repaired and reinforced for three times, and were heightened and thickened. The total earthwork volume of the riverbank is 2.3 million cubic meters. The section of the dike is 2-4m high, the top width is 4m, the slope ratio is 1: 2, and the back water surface is 1: 1.5. There are still17.8km which can't meet the defense standard of once every 20 years. Embankment greening starts from 1980, nursery 13, nursery 1 19 mu, green riverbank 17. 1 km, with an area of12/kloc-0. Lalin River embankment protects 24 villages and 123800 mu of cultivated land from water disasters. Wuchang county has 85 1.8 million mu of low-lying waterlogged land, most of which are distributed in Lalin area. The main reason for waterlogging is that the rainfall is concentrated in July and August, and it is difficult to drain the accumulated water. Before liberation, the problem of waterlogging was left to nature for a long time. After liberation, the former Lalin county government took the control of waterlogging in Lalin area as the focus of water conservancy construction, and began to build the first main drainage canal project in June 1948. At that time, the Second Corps of Songjiang Military Region dispatched 1 regiment to help dig ditches. After one month of construction, the earthwork volume was about 300,000 cubic meters. In April of the following year, with the support of Songjiang Military Region, the second main drainage project was built, and the farmers called these two main drainage channels the military-civilian unity ditch. After the completion of the two drainage projects, the waterlogging elimination area will reach 40,000 mu. In order to eradicate the waterlogging in Lalin River, it is decided to construct it in two phases after on-site investigation in 1965. In July of the following year, Niujia, Hongqi, Shuangqiaozi, Beiyinhe, Bajiazi, Lalin, Xinglong and other townships (towns) dispatched 6.5438+0.6 million laborers, and by mid-September, 2 million cubic meters of earthwork was completed. The second phase of the project started on June 10 and ended on March 1967, with an earthwork volume of 2.83 million cubic meters. At this point, the water conservancy project for waterlogging control in Lalin area has begun to take shape.

Lalin River embankment is built at 1956 by connecting civil dikes, bending and straightening, heightening and thickening. Along the right bank of Lalin River, it starts from Qianwu, Zheng Qian Village, a mountain town, passes through Qianjin, Lanling, Jincheng and Handian, the opposite town, and connects with Songhua River levee at the lower mouth of Zengchan Village in Bandung Township, with a total length of 65.54 kilometers. 1956 reached the highest water level in history (14 1.4m), and the peak flow was 4030m3/s ... Newly built river banks, loose dikes, 13 exit. /kloc-in June of 0/0, the breach was renovated and reinforced. 1960, 1962, 1965 were repaired and reinforced for three times, and were heightened and thickened. The total earthwork volume of the riverbank is 2.3 million cubic meters. The section of the dike is 2-4m high, the top width is 4m, the slope ratio is 1: 2, and the back water surface is 1: 1.5. There are still17.8km which can't meet the defense standard of once every 20 years. Embankment greening starts from 1980, nursery 13, nursery 1 19 mu, green riverbank 17. 1 km, with an area of12/kloc-0. Lalin River embankment protects 24 villages and 123800 mu of cultivated land from water disasters. Mopanshan Reservoir is the highest reservoir on the main stream of Lalin River, located near the upstream of Shenjiaying Village, Shahezi Town, wuchang city, Heilongjiang Province, 1.8km, 343km from the estuary and 180km from Harbin. The geographical coordinates are east longitude 127? 4 1' 20 ",latitude 44? The total storage capacity is 523 million cubic meters. The project started in April 2003 and was completed at the end of 2006. The drainage area above the dam site is 1 15 1km2. The reservoir has an average annual rainfall of 500-800 mm and an average annual runoff of 560 million cubic meters. Mopanshan Reservoir is the highest level control project in Lalin River Basin, and it is a multi-year regulation reservoir. It belongs to the high-value area of annual runoff in Heilongjiang Province, with abundant water, good water quality and no pollution. Therefore, it is selected to provide high-quality and reliable water source for residents' life and industrial production in Harbin, and at the same time, it plays an important role in flood control and irrigation in the lower reaches of the reservoir, with remarkable comprehensive utilization benefits.

Liangjiashan Reservoir is located in Liangjiashan Town, the upper reaches of Kacha River in shulan city, Jilin Province. It is a large-scale second-class reservoir with the main function of flood control and waterlogging prevention, combined with comprehensive utilization of irrigation, fish farming and tourism. The reservoir is also a famous tourist attraction in Jilin Province, named after Yue Fei, a national hero of the Song Dynasty, who shines here. The reservoir area is picturesque and beautiful. The control basin area above the dam site is 6 18 square kilometers. The reservoir has been regulated for many years, with a total storage capacity of 654.38+09.25 billion cubic meters. It is a control project in the Catha River Basin, which has played an important role in eliminating the flood disaster in the Catha River.

Longfengshan large reservoir, 1958, was surveyed and designed by the provincial water conservancy survey and design institute. With the support of the Second Engineering Office of the Ministry of Water Resources, a large reservoir of 1 Longfengshan was built on the Mangniu River, a first-class tributary on the right bank. More than 25,000 laborers in the county mobilized, and the red flag fluttered day and night. After 10 years, 1968, key projects such as dams, tunnels, spillways and water conveyance tunnels were basically completed, with a controlled area of 1740 square kilometers. It is designed to regulate the reservoir every year, with a water volume of 280 million cubic meters and a total storage capacity of 233 million cubic meters.

Jun Yan Reservoir is located in Yanjun Village, Qingling Township. The survey, design and construction of fifth drainage trunk water shall be the responsibility of the county water conservancy bureau. /kloc-started in August, 0/958 and was completed in October, 0/959 10. The dam is 600 meters long and the maximum dam is 6 meters high. Dam crest elevation 165m, design water level 164m, dead water level 162.5m, total design storage capacity of 8.7 million cubic meters, development storage capacity of 2.489 million cubic meters and dead storage capacity of 2 million cubic meters. The designed irrigation area is 300,000 mu, including 80,000 mu of paddy fields. There are 800 mu of fish noodles and 500,000 fish. In recent years, due to the dry weather, the reservoir has not stored water, so it can't play its benefits. Some wasteland in the reservoir area has been reclaimed, and the dam has been destroyed. Now it is basically scrapped.

Yuhuangmiao Reservoir is located in Hu Si Township, Yushu City, upstream of Erdao River, a tributary of Kacha River, 4 kilometers east of the dam from tuqiao town. The reservoir controls the basin area of 187.6 square kilometers, and the hub project consists of main dam, spillway tunnel and water conveyance tunnel. The reservoir was built in 1958, which is the largest medium-sized reservoir in Yushu city. Yuhuangmiao Reservoir is a medium-sized reservoir mainly for flood control, irrigation and fish farming. In 2007, Songliao Committee rechecked the design flood standard of Yuhuangmiao Reservoir as once in 50 years and once in 300 years. After reinforcement, the dead water level of the reservoir is185.8m, the dead storage capacity is 277,000 m3, the water level in Li Xing is 190. 1 m, and the storage capacity in Li Xing is 24.9 million m3. The design flood level is 19 1.83m, the corresponding storage capacity is 474 1000 m3, the check flood level is 192.66m, and the total storage capacity is 606 10000 m3. The maximum flow rate is 70.8 cubic meters per second.

Shitang Reservoir is located in the lower reaches of Banjian River, a tributary of Erdaohe River in Yushu City, at 1.5km north of Chengfa Township and 19km away from Yushu City. Shitang Reservoir Dam Project was built at 1958. The controlled watershed area above the dam site is 1 14.4 square kilometers. Normal water level of the reservoir175.52m, storage capacity12310000m3. Shitang Reservoir is a comprehensive project focusing on flood control, irrigation and fish farming. Chengfa Township focuses on the development of Shitang Reservoir, relying on Shitang Reservoir to develop ecological leisure agriculture.

Xiangyang Reservoir is located on the right bank of Kacha River in Yushu City, upstream of Sandaohezi. The dam site is 2 kilometers away from Xiangyang Village, Xiangyang Town. The reservoir control basin area is 67. 1 km2. When the reservoir was completed, it was named Endeavour Reservoir. Located in the south of Xiangyang Township, it was named Xiangyang Reservoir on 1960. Xiangyang reservoir is a medium-sized reservoir which mainly focuses on flood control and waterlogging, taking into account irrigation and fish farming. In 2007, Songliao Committee reviewed the design flood standard of Xiangyang Reservoir as once in 50 years, and checked the flood standard as once in 300 years. After reinforcement, the dead water level184.5m, dead storage capacity1.46m, water level188.87m in Li Xing and storage capacity1.356,5438+0.000m3 in Li Xing. Design flood level 190.08m, corresponding storage capacity 2 179m m3, check flood level 190.73m, and total storage capacity 26210000m3. The maximum flow rate is 58.38 cubic meters per second. Longan trunk line Taking Longfengshan Reservoir as the water source, a water diversion channel was built, which passed through Longfengshan, Guanghui, Minyi, Guang Zhi and other towns to Anjia Town, with a total length of 65.8 kilometers. The state invested 2.2 million yuan to start construction in 1976, and mobilized more than 70,000 workers (about 6 million working days). By May of 1979, it took two and a half years, with 27 kilometers completed and 800 mu of rice irrigated. After renovation, the irrigation area will reach 1.985 to 1.360 mu.

Hongqi Canal, built in 1958, is built in two cities, and it draws water from Lalin River to irrigate farmland. After investigation and design, the head of the canal is near Tangjiadian, Hongqi Township, Wuchang County, and the main canal goes deep into the territory of Shuangcheng City. Construction began in the autumn of that year, and 765,438+0% of the total earthwork task at the head of the canal was completed in autumn and winter, initially forming a single section of the main canal. At the end of March, 1959, because it was not included in the provincial and local plans, the county was short of people, money and materials, so construction stopped. 1976, with the approval of provinces and cities, Shuangcheng continued to build a water diversion project on the basis of Hongqi Canal, named Friendship Canal. Youyi Canal is the first large-scale diversion irrigation project in the history of this county. The first canal is located in Heyanjiang Village, Hongqi Township, Wuchang County, Jilin Province, at the foot of Shilong Mountain, Huaijia Town, Yushu County, Jilin Province. Construction started in June, 1976, 1 1, the first phase of the main project was completed in June, 1977, and the ribbon-cutting ceremony was held on June 25, and the water was successfully opened. In that year, Shancheng and Qianjin Township benefited from irrigation of 20,000 mu of farmland, including 5,000 mu of paddy fields. After that, the construction continued year by year according to the engineering design, and it was basically completed in April of 1979. Five main canals with a total length of 177 km and 54 branch canals with a total length of 332 km were built, with 398 buildings above the branch canals. * * * Completed quantities1037.05438+00,000 cubic meters. Among them, earthwork10263200m3, stonework 84600m3 and concrete 22300m3.

Friendship canal, the whole project consists of four parts: canal head, irrigation area in front of reservoir, Shirengou reservoir and irrigation area behind reservoir. The head of the canal is at the foot of Shilong Mountain at the junction of Wuchang and Yushu counties, and it is 1 1 km away from the boundary of the twin cities. The main works include a rockfill dam on the main channel of Lalin River, which is 300 meters long, two non-overflow dams on the right bank in front of the dam, which are 840 meters long, and an eight-hole intake gate (2×2 meters) on the right bank in front of the dam. Lalin River flows into the main canal through the sluice and is introduced into the territory of Shuangcheng, with a maximum flow of 32 cubic meters per second. The irrigation area in front of the reservoir starts from the head of the canal, including the main canal, which is divided into thousands of canals from east to west to Shirengou Reservoir. The main canal enters the county from Shuangyue Village in a single city, and passes through Qianjin and Lanling to Dongfeng Village in Jincheng, with a total length of 54 kilometers. A diversion gate was built at the end 1 of the main canal of Dongfeng village in Jincheng town to separate the water flow and flow into the east and west branch canals respectively. Dongfen Qu Qian starts from the sluice, passes through Xiqin, Handian, Opposite City and Tuanjie to Xingjiatun, Shuangqing Village, Xingshan Township, and flows into Shirengou Reservoir, with a total length of 46 kilometers. The west branch canal flows from the branch gate into the Lalin River, passing through Handian and Duimeng to Wujiacun in Wanlong Township, with a total length of 37 kilometers. On the west main canal, the branch of 1 hongqi is reopened in Gaojia Village, Handian Township, and flows into Lalin River in Shangcun Village, opposite urban and rural areas, with a length of 2 1km. The irrigation area behind the reservoir includes the high and low main canals behind Shirengou Reservoir. Gaogan Canal flows into Renli Reservoir from Shirengou Reservoir via Xingshan, Shuiquan and Linjiang, with a total length of 19 km. The low main canal has not been built yet. It is designed to flow into Songhua River from Shirengou Reservoir via Xingshan, Linjiang and Geyong Village in Yongsheng Township, with a total length of 22 kilometers. Friendship Canal flows through 14 townships (towns) and 99 villages. The total irrigation area is 750,000 mu, including 499,000 mu of cultivated land and 654.38+10,000 mu of grassland. The designed irrigation area is 240,000 mu, of which paddy field is 6,543,8+0.4 million mu. The effective irrigation area of the project is 90,000 mu, including 70,000 mu of paddy fields. 1985 The actual irrigation area reached 83,000 mu, accounting for 92.2% of the effective irrigation area of the project, including 70,000 mu of paddy fields, accounting for 100% of the effective irrigation area of the project. The second drainage trunk line: it was built in the 22nd year of Guangxu in Qing Dynasty (1896), starting from the west gate of Sanjia Lastun (now Xiqin Township, which was flooded in the last year of Guangxu), going to the east of Xiaositun (now Heping Village) in Nantong, going to the west of Wangnuantun (Cash River Village), passing through Wujintun (Cash City Village) and Shangtaizi (Cash City Village). The total length of the drainage ditch is11482m. 1948 On the basis of the original drainage ditch, re-survey and design were carried out, from Ganjingzi in the north of Father Village in Lequn Township, passing through Tongxin, Xiqin and Lanling, extending to the west of Shangtaizitun in Jincheng Town and discharging into Lalin River. The total length of the trunk line is 28.5 kilometers, the maximum bottom width is 24 meters, and the average bottom width is 18 meters. There are 1 branch lines and 6 branch lines. Waterlogging control area 180438+00000 mu.

The third drainage trunk line: 1948 survey and design in autumn, 1949 construction in spring, and the main ditch section is basically completed. However, there is a 3.6-kilometer trench downstream, which is too close to beijing-harbin railway, and the route was changed to 8.2 kilometers, which was completed in April 1950. From Yongzhi Village in Happiness Township, it flows into Lalin River through Lianxing, Shuangcheng Town and Chaoyang to Yongfa Village in Lanling Town. The trunk line is 37.2km long, with the maximum bottom width19.2m and the average bottom width12m. There are six feeder lines. Waterlogging control area 190900 mu.

The fourth drainage trunk line: 1948 survey, design and construction, 1949 completed in May. From the east of Tsinghua Village in Lianxing Township to the west of Xujiahuazitun Village in Qianjin Township, it flows into Lalin River. The trunk line is 29.3 kilometers long, the maximum bottom width is 15.5 meters, and there are 5 branch lines. The waterlogging control area is 6.5438+0.63 million mu.

Fifth drainage trunk line: 1948 survey, design and construction, 1949 completed in May. From the northwest of Yanfang Village in Qingling Township, to the front house of Zheng Qian Village in Shancheng Town, and to Lalin River in the south. The trunk line is 22.7 kilometers long, the maximum bottom width is 25.6 meters, and there are 2 branch lines. Control the submerged area of 66,000 mu.