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Lake Sagami
is an artificial lake located in Midori-ku, Sagamihara, Kanagawa in Japan's Kantō region. Created in 1947 after the Sagami River was dammed, it serves as use for recreational and hydroelectric purposes.〔〔 The lake also served as venue for canoeing events at the 1964 Summer Olympics held in Tokyo, located from the lake.〔〔(1964 Summer Olympics official report Volume 1, Part 1. ) p. 131. & Accessed September 11, 2008.〕 ==Water and land usage surrounding the lake== Typical lake flows (in m3/s) are 85 hydroelectric, 10.34 domestic, 4.16 irrigation, and 2.15 industrial.〔 Land usage is 87.5% natural, 4.6% agricultural, and 7.9% other.〔 Eutrophication issues have been a serious issue of the lake that was first observed in 1967.〔 The main issue was microcystis algae bloom and reached its highest cell count of 2,500,000 cells/mL in July–October 1979 (data from 1985).〔 Most vegetation grown around the lake are grassland and weeds while most crops grown are rice and vegetables.〔 Fertilizer application for crops near the lake is moderate.〔
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「Lake Sagami」の詳細全文を読む
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