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:''This article is about an ecozone. For the physiographic units covering roughly the same region please see Interior Mountains, Mackenzie Mountains, Muskwa Ranges, Yukon Plateau and Yukon Ranges. The Boreal Cordillera is a Canadian terrestrial ecozone occupying most of the northern third of British Columbia and southern half of the Yukon. Within it is found Kluane National Park and Reserve, and a small portion of the southern range of Nahanni National Park Reserve. Most of the area's population is based in the city of Whitehorse, and it contains most of the Yukon's population. The portion in British Columbia is barely populated.〔 〕 The main economic activity is mining, particularly of gold, which discovery in the region led to the Klondike Gold Rush. In addition to the area's rich mineral deposits, active industries exist in forestry and tourism. ==Geography== This mountainous ecozone is between the Montane Cordillera Ecozone to the south-east and the Taiga Cordillera Ecozone to the north. The three zones contain the Canadian Rockies. To the east are the Taiga Plains, and to the west is Alaska, though the ecozone is also adjacent to narrow strips of the Pacific Maritime. It is characterized by tall peaks and extensive plateau. The northern plateaux within the ecozone have a fairly gentle terrain, broken by numerous watercourses running through them, and are separated by wide valleys and their lowlands.〔 Just over 15% of the Boreal Cordillera, or roughly 73,320 km² consists of wetlands, of which 92% is treed wetland. It covers a total area of 471,400 km², with 241,240 km² of forest cover, of which 78.6% is softwood, 17.8% is mixedwood, and 3.6 is hardwood.〔 The spruce beetle has been proliferating since the 1990s, and has destroyed vast areas of the spruce forest. The ecozone contains four forest regions - tundra, sub-alpine, coast, and boreal. There is also concern that the softwood harvest in southeastern Yukon does not have adequate natural regeneration. 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「Boreal Cordillera Ecozone (CEC)」の詳細全文を読む スポンサード リンク
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