Hailing Lake

shilianghe reservoir

synonym

Hailing Lake generally refers to Shiliang river reservoir

This entry is compiled and applied by "popular science China" Science Encyclopedia

to examine

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On the boundary of Donghai and Ganyu counties in the northeast of Jiangsu Province, Linshu County in Shandong Province is connected to the West. It is one of the main projects of "guiding Shu (River) through sand (River)". It is formed by blocking the upper reaches of Xinshu river. The reservoir area was originally the Shiliang River Basin, a tributary of Shahe River. It was built in 1958-1962. The dam is 5200 meters long and 22 meters high, with a total storage capacity of 531 million cubic meters. One spillway gate (15 holes) is set to discharge flood into the sea through Xinshu River and Linhong river. There are small hydropower stations. The water diversion irrigation area is 900000 mu. It is the largest artificial reservoir in Jiangsu Province, mainly for irrigation and flood control, as well as power generation, breeding and water supply for urban residents

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survey

Hailing lake, formerly known as Shiliang river reservoir, is located in the famous Shiliang River and Dasha River It is located in the middle reaches of Xinshu River, at the junction of Ganyu district and Donghai County of Lianyungang City, adjacent to Linshu in Shandong Province in the West and about 35 km away from Lianyungang City in the East. Its geographical coordinates are between 34044 ′ 33 ″～ 35049 ′ 46 ″ N and 118044 ′ 11 ″～ 118052 ′ 31 ″ E.

The largest reservoir area is 91 square kilometers, the largest reservoir capacity is 531 million cubic meters, the flood control reservoir capacity is 323 million cubic meters, the profit making reservoir capacity is 234 million cubic meters, the dead reservoir capacity is 32 million cubic meters, and the control basin area is 15365 square kilometers. After the implementation of the project of transferring water from the east to the south, the Yihe River catchment area will be increased by 10100 square kilometers, accounting for 19.3% of the Yishusi basin area.

Shilianghe reservoir was built on the main stream of xinshuhe River according to the planning report of Yishusi River Basin issued by Huaihe River Committee in 1957. It was started in December 1958 and completed in December 1962. Its main function is to build the largest artificial reservoir in Jiangsu Province, which is mainly for flood control and security, combined with irrigation, breeding, power generation and tourism. The reservoir area is named after the riverbed of the ancient Shiliang river.

The reservoir has many functions such as flood control, water storage, irrigation and power generation. It is not only an important part of the project of transferring water from east to south, but also a key flood control and security project in our province. Since its completion, it has brought great social and economic benefits.

Scenic spots and historic sites in the lake area

Juyuan, located in the northwest of Hailing lake, is the private garden of Wang Desheng in the late Qing Dynasty. His son Wang Zuoliang was once the magistrate of Ganyu County. On April 10, 1942, Comrade Liu Shaoqi arrived in the hinterland of Binhai base, where Shandong branch and 115th division of the Eighth Route Army were stationed in xizhufan village. He stayed in Juyuan, the residence of the squire Wang Dazhao (grandson of Wang Desheng, commander of nangan town in Jiangxi Province in the late Qing Dynasty). This garden has been destroyed in the war and subsequent movements. At present, its ruins have completely become farmland and fishing pond, and its buildings have disappeared.

Zhuqi ancient city, located in the northwest of Hailing lake, belongs to Donghai County. Later Han Dynasty because of it. Jin still belonged to Donghai County, which was abolished later. In the fourth year of Wude of Tang Dynasty, Zhuqi county was restored to Haizhou. Eight years, No. Or: Zhu Qi, the land of Lu in the spring and Autumn period. Zuozhuan was set for ten years, and the Duke of Qi of the guild wished him, which was a real Jiagu. That's the cloud. The former site is located in the east of Gucheng village, banzhuang town.

Jiagu mountain is located in Hailing, Hubei Province. Huanyu Ji is 38 Li to the west of the county, which is the place where Confucius appointed the Duke of Qi. In the spring and Autumn Annals, the Duke of Qi was in Jiagu. That's it. Old records: there are several mountains, and there is a steep valley in front of it. Among them, Weishe lies on the north slope of the valley, and the level gradually rises to Chongtai, where there is a Confucius Temple. According to Zuozhuan, I wish it a real Jiagu.

Reservoir characteristics

The reservoir area is located in the semi humid temperate monsoon climate zone, with an average annual temperature of 13.2-14 ℃ and an average annual precipitation of 883.2 mm, accounting for 72% of the annual rainfall from June to September. The annual evaporation in the reservoir area is 1570-1780 mm, and it is nearly 230 mm in May and June. The site of the reservoir area belongs to the Yimeng Piedmont erosion accumulation inclined plain area with gentle terrain.

The dam elevation of Shilianghe reservoir is 10.0-14.0m. The runoff of the reservoir basin is recharged by atmospheric precipitation, with an annual runoff depth of 200-300 mm. The Yimeng mountain area is located in the upper reaches of the control area of the reservoir, with serious soil erosion. The average annual sediment concentration of Linyi station of Yihe River is 3.10 kg / m3, and the average annual sediment transport rate is 246 kg / S; the average annual sediment concentration of Juxian station of Shuhe river is 3.93 kg / m3, and the average annual sediment transport rate is 62 kg / s. In December 1983, 54 million cubic meters of sediment was measured in the reservoir area.

The flood limit water level of the reservoir is 23.5m, and the water level after flood is 24.5m; the design flood level of the reservoir is 26.81m, and the check flood level of the reservoir is 27.95m.

The highest flood level was 26.82m on August 15, 1984, and the lowest water level was 15.24m on July 9, 1965.

In 2005, the maximum water storage was 349.17 million cubic meters, and the minimum water storage was 4.78 million cubic meters in 1992;

In 1998, the highest flood discharge was 1236036200 cubic meters,

The maximum discharge in 2000 is 2500 cubic meters per second.

Reservoir operation and regulation

After the completion of the reservoir, the comprehensive benefits of flood regulation, water storage, irrigation, power generation and breeding have been brought into full play.

After the completion of Shilianghe reservoir, it is responsible for regulating and storing the flood in Yishusi basin, ensuring the flood control security and industrial and agricultural water use of 60000 farmland in Lianyungang City, Longhai railway, Tianwan nuclear power station, Donghai and Ganyu counties. Under the reservoir, Shunan (Donghai County) and Shubei (Ganyu County) two large-scale artesian irrigation areas will be built, with a designed irrigation area of 59100 hectares, an effective irrigation area of 42500 hectares, and a general annual water supply of 300 million cubic meters.

The water quality of Shilianghe reservoir has been good since its construction. Since the middle and late 1980s, a large number of small chemical plants and paper mills have been built in nanguzhen Industrial Zone, Linshu County, Shandong Province, and along the 327 national highway of Jiaolong town in the upstream of Shiliang river reservoir. The sewage has been discharged to Shiliang river reservoir, resulting in the deterioration of reservoir water quality and frequent pollution accidents. In 1998, there was a serious pollution accident in the reservoir, which caused serious losses to local fishermen.

The pollution problem of Shilianghe reservoir has attracted the attention of the party committees and governments at all levels in the reservoir area and downstream. The Huaihe Water Conservancy Commission of the Ministry of Water Resources approved the implementation of the anti pollution dispatching opinions of Daguanzhuang water control project on March 30, 2004. The environmental protection departments of Ganyu, Linshu and Donghai counties strengthened the law enforcement and supervision, and closed down the pollution sources such as paper mills and small chemical plants in the upstream. Since 2002, the water quality of the reservoir has been above class III.

Since the 1990s, the fishery resources in the reservoir have been gradually depleted, and then cage culture has been developed. There are 80000 cage and 738 fishing boats. Due to the production of a large number of food spoilage and fish excreta, the water quality is eutrophicated, causing water pollution and destroying the ecological balance.

Reservoir reinforcement

Due to the limitation of social and economic conditions at that time, there were problems of poor engineering quality and low standard after the completion of the reservoir. Since the spring of 1966, although it has been reinforced for many times, it is still a dangerous reservoir.

In 1992, the Ministry of water resources (MWR) listed shilianhe reservoir as a reinforcement project in the notice on the reinforcement of the second batch of national key dangerous reservoirs.

In August 1998, the Provincial Planning Commission approved the feasibility study report with the document of sujijingnongfa (1998) No. 1389. On December 18, 1998, huaiwei approved the construction with the document of huaiwei Guiji No. 123 "approval on preliminary design of shilianhe reservoir reinforcement project".

The reinforcement works include: sluice reinforcement works, main and auxiliary dam reinforcement works, new auxiliary dam works, demolition and construction of South Main Channel Sluice, mengcaobu Culvert Reinforcement Works, demolition and construction of North Main Channel intake sluice, reinforcement works of original auxiliary dam culvert, and management facilities. The total investment of the approved project is 178.86 million yuan, including 61 million yuan from the central government, 58.93 million yuan from provincial and 58.93 million yuan from cities and counties.

Reservoir resettlement

Immigration history

Shilianghe reservoir area used to be densely populated with villages. Before construction, 17 hectares of cultivated land in the reservoir area below 4038 meters, 29 natural villages, 5064 households, 21817 people, 17874 houses, 20 tile houses, 13 schools, 1 warehouses, and 1 supply and marketing cooperatives were surveyed.

In 1958, 3516 people from 909 households of huandun Town East, xiwangtang and caobudian went to Jinping commune of Lianyungang City, and 15813 people from 3968 households of 19 brigades were resettled in the county, including 12518 people from 3127 households of 15 brigades of huandun commune, 2074 people from 458 households of 2 brigades of Zhudu commune and 1221 people from 338 households of 1 brigade of Daling commune.

Since the flood detention and Impoundment of the reservoir involve Jiangsu and Shandong provinces, from September 15 to 18, 1967, according to the design requirements of 28.0m flood control water level and 26.0m Xingli water level of the reservoir, under the leadership of the Ministry of water and electricity, the two provinces reached the meeting minutes on the impoundment of shilianhe reservoir and the resettlement of the reservoir area, determined the temporary water level of 22.5m, and carried out zoning adjustment.

one thousand nine hundred and seventy

Chinese PinYin : Hai Ling Hu