Ecological regions of the Northwest Territories - Info and Reading Options

The Open Library:

"The mountains of the Northwest Territories (NWT) are collectively called the Cordillera. This area forms a semi-circle of high plateaus, jagged peaks and river valleys along the western NWT border and extends east of the Mackenzie River to include the Franklin Mountains. The Cordillera influences the climate and drainages of the Taiga Plains to the east. The region displays an exceptional assemblage of boreal and subarctic mountain landscapes and ecosystem diversity. Under the new ecosystem classification the NWT Cordillera is unique in that it contains portions of three level I ecoregions: Tundra, Taiga and Northwest Forested Mountains. Nested respectively within each of these level I ecoregions is the Tundra Cordillera, Taiga Cordillera and Boreal Cordillera level II ecoregions. Five Level III ecoregions are nested within the Level II ecoregions of the Cordillera: the Tundra Cordillera High Subarctic (HS), the Taiga Cordillera High Subarctic (HS), the Taiga Cordillera Low Subarctic (LS), the Boreal Cordillera (HB), and the Boreal Cordillera Mid-Boreal (MB). Level III ecoregions are identified primarily by regional climate differences reflected in the soils and vegetation characteristic of each ecoregion. The Level III ecoregions of the Cordillera are further divided into 36 Level IV ecoregions that are defined by a characteristic pattern of terrain and vegetation."--Pref.

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