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The Bhumibol Dam (''formerly known as the'' Yanhi Dam) is a concrete arch dam on the Ping River, a tributary of the Chao Phraya River, in Amphoe Sam Ngao district of Tak Province, Thailand. It is located about north of Bangkok and was built for the purposes of water storage, hydroelectric power production, flood control, fisheries and saltwater intrusion management. The dam was named after King Bhumibol Adulyadej and was Thailand's first multi-purpose project.〔(【引用サイトリンク】url=http://www.thailand-travelonline.com/thailand-events-calendar/bhumipol-dam-mountain-bike-championship-%E2%80%93-challenge-meets-sanook-fun/1376/ )〕〔 ==Background== The Bhumibol Dam, among others in the Chao Phraya basin, was constructed beginning in the 1950s to exploit the agricultural and hydroelectric potential of the basin. Construction on the dam began in 1958 and was finished in 1964. The reservoir was completely filled in 1970. The first two generators were commissioned in 1964. In 1972, the Sirikit Dam was completed on the Nan River, one of two major tributaries of the Chao Phraya including the Ping. The Bhumibol and Sirkit Dams control 22 percent of the Chao Phraya's annual runoff combined. Both dams also help provide for the irrigation of in the wet season and in the dry season.〔(【引用サイトリンク】url=http://www.rid.go.th/eng/kw-13_eg.htm )〕 In 1991, the Lower Mae Ping Dam () was constructed downstream to create a lower reservoir for the one pumped-storage turbine that was installed. When constructed, the Bhumibol Dam contributed 22 percent of Thailand's power generation and in 2003 that number was 2 percent.〔(【引用サイトリンク】url=http://www.sustainablehydropower.org/site/social/schemes/bhumibol.html )〕 During the 2011 Thailand floods, rainfall for March 2011 over the area of northern Thailand was an extraordinary 344 percent above normal. Bhumibol Dam in particular got of rain, above the mean of and since 1 January had accumulated , or 186 percent above normal.〔 〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Bhumibol Dam」の詳細全文を読む スポンサード リンク
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