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Blackford Pond is a small, artificial pond in the Blackford region of Edinburgh. ==Geography== The pond was created during the Victorian Era in a glacial hollow in the Blackford region of Edinburgh. 〔〔(【引用サイトリンク】title=Algae World: Sellaphora: Blackford Pond, Edinburgh )〕 According to Ordnance Survey maps, it was created between 1800 and 1900 in an ice-scoured hollow. The pond measures , and has an island originally in size, but the island had been eroded to a quarter of this size until it was restored in 2010.〔 The water is eutrophic due to run-off from the neighbouring allotments, as well as remains of bread given to birds and the faeces of the birds.〔 This can lead to algal blooms that deplete the level of oxygen in the pond.〔 There are no visible inflows, but there is a drain at the eastern end which keeps the water level constant.〔 In 2010, it underwent worth of work, in order to repair the overgrazed margins of the pond.〔(【引用サイトリンク】title=Blackford Pond )〕 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「Blackford Pond」の詳細全文を読む スポンサード リンク
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