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25-624: The reservoir is operated by the Korea Water Resources Corporation (K-water) for flood control, hydro-power generation and water supply. The dam is built on the Geum River , also spelled Keum River or Geumgang River, which is the longest river in the central part of South Korea. The downstream stretch of the river up to the estuary is 146 kilometres (91 mi). The dam drains a catchment area of 4,166 square kilometres (1,609 sq mi). The land use pattern of

50-435: A day. The hydrology of the project is thus influenced by the seasonal monsoon climate. There is scenic road on the entire periphery of the lake where Hyeonamsa Temple, and Munuihyanggyo Confucian School are located. The multipurpose Daecheong Dam completed in 1980 is 72 metres (236 ft) in height, 495 metres (1,624 ft) long and has a gross reservoir capacity of 1.49 million cubic meters. The reservoir water surface area

75-530: A means of cultural contact from prehistoric times (see Mumun Pottery Period ) and into the Three Kingdoms of Korea through their ancient function as a transportation route that begins on the west coast and penetrates deep in the interior of the Peninsula. Bronze Culture flourished in this area from c. 850 B.C.-A.D. 100 (see Liaoning bronze dagger culture ). Archaeological evidence suggests that some of

100-691: A number of high schools, including a girls' high school, a technical high school, and two private schools which attract students from across the province and beyond. Local attractions include the Eunjin Mireuk , a large standing Buddhist sculpture of the Goryeo period and its accompanying temple, Gwanchoksa, as well as the Baekje Military Museum . Mireuk-bosal at Gwanchok Temple in Nonsan, South Korea. The spring Strawberry Festival

125-404: Is 72 square kilometres (28 sq mi). It has three saddle dams on the reservoir periphery to prevent spilling of water. Following the building of the dam flood damage in the downstream reaches has been substantially prevented and salinity of the downstream land has also reduced. The annual inflow into the reservoir is 2,451 million cubic meter. The effective storage (live storage) created by

150-619: Is a major river of South Korea that originates in Jangsu-eup, North Jeolla Province . It flows northward through North Jeolla and North Chungcheong Provinces and then changes direction in the vicinity of Greater Daejeon and flows southwest through South Chungcheong Province before emptying into the Yellow Sea near Gunsan . The river is 397 kilometres (247 mi) long, making it the third longest in South Korea. The area of

175-497: Is a popular tourist event as is the Ganggyoung autumn fermented seafood festival. The eight famous spots in Nonsan include Gwanchoksa , the historic sites of General Gyebaek , Tapjeong Reservoir , Ssanggyesa (Temple), and Noseong Sanseong (Fortress). The city has a concert hall, where various cultural activities such as concerts and lectures are held. Konyang University's auditorium also hosts free cultural activities for

200-418: Is classified as meso-stratified (influenced by biotic and abiotic factors). Organic matter loading (contributed by plants and animals causing changes in the chemical oxygen demand ( COD, a measure of the amount of organic compounds in water), Mn (manganese)) in the lake is about 78.3% during heavy rainfall season, from June to September. On the bank of the reservoir, a water-themed cultural museum called

225-507: Is located at 36°12′N 127°5′E  /  36.200°N 127.083°E  / 36.200; 127.083 . The origin of Nonsan's geographical names is said to have come from the small garden " Nolmoe, " which rises in the middle of farming fields, where rice paddies and mountain are said to reflect geographical features. The city belongs to the Daejeon Metropolitan Area. Nonsan has a significant history. During

250-597: Is the sweetest". Sesil [pronounced "say -shill"] company is the world's third leading producer of insects for natural pest control. The prominent yogurt company, Yakult , has its headquarters in Nonsan. Agro-Fisheries Trade Corp. is a regional supplier of food products. The greater Nonsan area includes the ROK Army training center ( 36°07′32″N 127°06′24″E  /  36.125483°N 127.106697°E  / 36.125483; 127.106697  ( Nonsan Korean Army Training Center (논산육군훈련소) ) ). Nonsan has

275-497: The Geum River , and an outlying subdivision of the city serves as a significant fishing port. Chungcheong Metropolitan Railroad is proposed, in the third phase, to set Ganggyeong Station for the starting point and connect the city with Gyeryong , Daejeon, and Cheongju . Nonsan is an agricultural city, with rice being the most important crop. Other important crops include strawberries , ginseng , napa cabbage , watermelons , and Korean pears . According to The Chosun Ilbo ,

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300-558: The Samhan period, Nonsan is believed to have been part of Mahan territory. In the Baekje period, the district belonged to Hwangdeungyasan-gun. The crucial battle in which Silla defeated Baekje is thought to have taken place in the general area of Nonsan. Later, in the Silla period, Nonsan was divided into two different towns: Deogeun and Hwangsan. The train station was built in 1911, in

325-618: The Daecheong Dam Water Culture Center was established on 6 July 2004. It has three exhibition halls which display information on the dam, uses of water, environmental features of the area around on the Geumgang River also on the aspect of cultural aspects of the villages which were submerged by the reservoir and about people living on its periphery. The center also has a theater, information center, and an observatory. Geum River The Geum River

350-775: The Geum River Basin is 9,859 square kilometres (3,807 sq mi). The upper part of the river flows slowly through part of the Noryeongsanmaek Mountains and is marked by extensive stream meandering. On the other hand, river curves on middle and lower parts of the river are more gradual and there is comparatively less stream meandering. Tributary streams of the Geumgang include the Gap-cheon, Yugu-cheon, Miho-cheon, Unsan-cheon, Seokseong-cheon, and Nonsan-cheon. Several small alluvial plains including

375-623: The Geum River and its tributaries. The alluvial plains formed by the Geumgang and its tributaries are the locations of significant agricultural production in Korea. 36°00′N 126°40′E  /  36.000°N 126.667°E  / 36.000; 126.667 Nonsan Nonsan ( Korean :  논산 ; Korean pronunciation: [non.san] ) is a city in South Chungcheong Province , South Korea. It

400-584: The Honam and Nonsan Plain have been formed by the flow of the Geumgang and its tributaries. In the area of Buyeo County , the river bears the name Baengma-gang river, which means White Horse River. Numerous legends associate the ancient kingdom of Baekje with the Baengma. The Baengma River is the subject of a well-known song of the sin minyo tradition, Kkumkkuneun Baengma-gang (꿈꾸는 백마강, "Dreaming Baengma-gang"). The Geumgang River and its tributaries were

425-410: The camps and melted into the local population in order to avoid being repatriated to North Korea. Nonsan is served by the national railroad system and city, regional and national bus lines. An expressway connects the city to Daejeon and other cities. Many streets have bike paths , sharing pavement with sidewalks. The stream running through the city proper is not navigable, but downstream it joins

450-517: The community. In June 2011, the multipurpose culture hall Sangsang Madang was completed. It is dedicated to "indie art". Donam Academy, one of the nine neo-Confucian seowon established in Korea during the Choseon dynasty , is in greater Nonsan. It was made a UNESCO provisional world heritage site in December 2011. Nonsan has jurisdiction over 2 eup , 11 myeon , and 2 dong . Nonsan

475-487: The dam is 790 million cubic meter. The mean depth of water is 20 metres (66 ft) with a mean residence time of 180 days. The High Flood Level (HFL) of the reservoir is EL 80 m and the Full Reservoir Level (FRL) is EL 76.5 m. An upstream dam on the upper basin of Geum River, about 133 kilometres (83 mi) upstream, reduces the flow intensity and also the inflow into the reservoir. The water supply from

500-517: The farmers are growing new varieties of strawberry produced in Japan without the producer's permission, while the JoongAng Daily says "Strawberries grown in Nonsan are of various types: seolhyang, maehyang, geumhyang, janghi (akihime) and yukbo (red pearl). The first three were developed in Nonsan while the latter two are from Japan. Janghi is the most commonly grown in Korea. However, seolhyang

525-400: The first complex societies in southern Korea briefly flourished in the valleys formed by tributaries of this river. The Geumgang River Basin contained the chiefdoms of Mahan , and a former centres of the early kingdom of Baekje such as Ungjin (AD 475–525) and Sabi (AD 525–660) are located along the Baengma portion of the river. The river's Korean name ("Silk River") is a homonym of

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550-415: The reservoir is provided to Chungcheong , Daejeon , Cheongju , Jeollabuk-do areas which include Gunsan , Jeonju , and Iksan . The dam has hydro power facility with installed capacity of 90 MW and the annual power generation is around 240 million kWh. Nutrient loading (contribution to Eutrophication ) of the reservoir has occurred due to agricultural flows and from livestock farms in the catchment. It

575-505: The same year as the rail line through the Nonsan plain was completed. The modern city of Nonsan was established in 1914, by the merger of the four counties of Yeonsan -gun, Eunjin -gun, Noseong -gun and Seoksung -gun. During the Korean War , a POW camp was set up by the U.S. and South Korean forces. On June 18, 1953, at the Nonsan camp as well as at POW camps at Busan , Masan , and Kwangju , thousands of POWs swarmed out of

600-523: The watershed is 74.5% of forest and hilly area, 16.3% of agricultural land of paddy and other crops, and 9.2% of urban area. The river is joined by five major tributaries and exhibits a dendritic (in the form of branches of a tree) drainage pattern. The catchment receives an annual average rainfall of 1,400 millimetres (55 in) of which more than 50% is recorded during the summer months from July to September, and many episodic (infrequent) events of more than 100 millimetres (3.9 in) have been recorded in

625-637: The word for "diamond" ( 금강 ; 金剛 ) and should not be confused with Kŭmgang Mountain (금강산; 金剛山; "Diamond Mountain") in North Korea. Dams have been built on the Middle and Upper Geumgang to facilitate water for agriculture and industry. They include the Daecheong Dam and the Yongdam Dam. The city of Greater Daejeon and the farms and industries of South Chungcheong Province rely heavily on

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