Traditional Flood Retention Basin (disused drinking water supply reservoir).jpg
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Traditional Flood Retention Basin (disused drinking water supply reservoir), Fish hatcheries, Retention ponds, Unidentified dams, Unidentified reservoirs
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Traditional Flood Retention Basin (disused drinking water supply reservoir), Traditional Hydraulic Flood Retention Basin.  In this case a disused drinking water supply reservoir currently being used as a fish farm.  The presence of the fish farm results in nutrient enrichment (eutrophication) of the water body
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ja
伝統的な洪水調節池(廃水の飲料水貯水池)、魚群集、貯留池、未確認のダム、特定貯水池
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伝統的な洪水調節池は、伝統的な水力調節池である。この場合、現在は廃水の飲料用貯水池が養魚場として利用されている。養殖場の存在は、水域の栄養強化(栄養(富栄養化)をもたらす。
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retention fish supply retention basin eutrophication drinking water nutrient