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aspen parkland
Aspen parkland refers to a very large area of transitional biome between prairie and boreal forest in two sections, namely the Peace River Country of northwestern Alberta crossing the border into British Columbia, and a much larger area stretching from central Alberta, all across central Saskatchewan to south central Manitoba near the United States border. Aspen parkland consists of groves of aspen poplars and spruce interspersed with areas of prairie grasslands, also intersected by large stream and river valleys lined with aspen-spruce forests and dense shrubbery. This is the largest boreal-grassland transition zone in the world and is a zone of constant competition and tension as prairie and woodlands struggle to overtake each other within the parkland.
This article focuses on this biome in North America. Similar biomes also exist in Russia north of the steppes (forest steppe) and in northern Europe.
==Setting==
The aspen parkland biome runs in a thin band no wider than 500 km through the Prairie Provinces, although it gets broader to the west, especially in Alberta. This is a hilly landscape with many small lakes and ponds. The cities of Edmonton and Saskatoon are the largest cities completely in this biome while Winnipeg is bordered by tallgrass prairie to the west and south and the aspen parkland to the northeast, and Calgary is bordered by prairie to the east and the Foothills Parkland to the west.
There are three main sections of aspen parkland: Peace River, Central, and Foothills. The Central Parkland is the largest section and is part of main band of aspen parkland extending across Alberta, Saskatchewan and Manitoba, bordered by prairie to the south and the boreal forest to the north. The Peace River Country is located along the Peace River region of the province, extending across the border into northeastern British Columbia, and is completely surrounded by boreal forest, cutting it off from the Central Parkland. The Foothills parkland covers the Foothills of the Rocky Mountains as far south as Waterton Lakes National Park.〔(【引用サイトリンク】title=Alberta's Parkland Region )〕〔http://www.pc.gc.ca/eng/pn-np/ab/waterton/natcul/natcul1/g.aspx〕〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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