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Quamichan Lake is a lake in the Cowichan Valley region of Vancouver Island, British Columbia, Canada, located three kilometres to the northeast of the City of Duncan.〔(BC Names/GeoBC entry "Quamichan Lake" )〕 Quamichan Lake and its sister Somenos Lake were created 11,000 years ago by receding glaciers. Both lakes contribute to Cowichan River. Quamichan Lake's outflow is Quamichan Creek which joins with Somenos Creek, the outflow from Somenos Lake, which flows to Cowichan River.〔(【引用サイトリンク】url=http://www.cowichanwatershedboard.ca/content/quamichan-and-somenos-lakes )〕 The Cowichan Watershed Board identifies a common set of conditions for both shallow lakes:〔 * excessive nutrient loading from the farms and homes which surround the lakes * insufficient "flushing" in summer due to reduced inflows and truncated outflows * increased plant growth ("algae-blooms"), and * eutrophication (reduced oxygen as the vegetation decomposes) * intensified warming == Name origin == "Quamichan" was an ogress in the lore of the Cowichan peoples who stole and ate children whose name was adopted by the subgroup of the Cowichan also called ''Kw'amutsun''.〔T.W. Paterson, "Mapmakers Have Been Unkind to the Original Name-Givers," Cowichan Valley Citizen, 16 November 2005 (quoted in BC Names/GeoBC reference)〕 Their community was adjacent to the lake. 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「Quamichan Lake」の詳細全文を読む スポンサード リンク
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