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Found 10 records similar to Terrestrial Ecozones (forests)
In Canada, there are 20 ecozones, consisting of 15 terrestrial and 5 marine units. The vegetation varies from one ecozone to another. Forests cover totally or partially nine ecozones: Pacific Maritime, Montane Cordillera, Boreal Cordillera, Taiga Plains, Boreal Plains, Prairie, Boreal Shield, Mixedwood Plains, and Atlantic Maritime.
Canada has defined a hierarchical classification of ecosystems. At a simple level there are 20 ecozones, fifteen terrestrial and five marine. An ecozone is an area of the earth’s surface that represents a large ecological zone and has characteristic landforms and climate. Each ecozone is distinguished from others by its unique mosaic of plants, wildlife, climate, landforms, and human activities.
The “Terrestrial Ecozones of Canada” dataset provides representations of ecozones. An ecozone is the top level of the four levels of ecosystems that the National Ecological Framework for Canada defines. The framework divides Canada into 15 terrestrial ecozones that define its ecological mosaic on a sub-continental scale. Ecozones represent an area of the earth’s surface as large and very generalized ecological units.
Ecozones are one of several levels of ecological regions that cover all of Canada. An ecozone is a discrete system, which has resulted from the mesh and interplay of geology, landform, soil, vegetation, climate, wildlife, water and human factors. Four of the fifteen terrestrial ecozones of Canada are found in Nunavut: Northern Arctic, Arctic Cordillera, Southern Arctic, and Taiga Shield.
Forty-five percent of the Canadian territory is forested corresponding to 417.6 million hectares. There are 234.5 million hectares of commercial forests and 0.4% is harvested each year. The forested areas managed for timber production are mostly located in the Boreal Shield, Atlantic Maritime, Montane Cordillera and Pacific Maritime ecozones.
Fifteen ecozones make up terrestrial Canada, and five make up the marine waters bordering Canada. Canada’s 15 terrestrial ecozones can be subdivided into 53 ecoprovinces, which can be further broken into 194 ecoregions. Ecozones are useful for general national reporting and for placing Canada’s ecosystem diversity in a North American or global context. Ecoprovinces are useful units at an intermediate scale for national and regional planning and reporting purposes.
In Canada, mines are most heavily concentrated in the Mixedwood Plains, Boreal Shield, Prairie, and Montane Cordillera ecozones. Mines require accessibility, and are therefore strongly correlated with transportation routes. While most mines are designed as closed systems, occasionally water pollution results from problems in the mining, or milling processes, and aquatic ecosystems can be affected. The map shows the number of mines per ecoregion.
The National Ecological Framework for Canada's "Elevation by Ecozone” dataset provides elevation information for ecozone framework polygons, in meters. It includes codes and descriptions for minimum elevation, maximum elevation, mean elevation and the difference in elevation.
The National Ecological Framework for Canada's "Surface Form by Ecozone" dataset contains tables that provide surface form information for components within the ecozone framework polygon. It provides surface form codes and their English and French-language descriptions as well as information about the percentage of the polygon that the component occupies. Surface form descriptions describe assemblages of slopes or recurring patterns of forms that occur at the earth's surface. When applied to consolidated materials (material that has been transformed to hard rock), it refers to the form produced after modification by geological processes.
Contained within the 5th Edition (1978 to 1995) of the National Atlas of Canada is a map that shows the first three levels of Environment Canada's hierarchical ecological land classification system: ecozones, then ecoprovinces and finally 177 ecoregions.