Terrestrial ecosystems
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The National Ecological Framework for Canada's "Soil Texture by Ecozone” dataset contains tables that provide soil texture information within the ecozone framework polygon. It provides soil texture codes and their English and French language descriptions as well as the percentage of the polygon that the component occupies. Soil texture indicates the relative proportions of the various soil separates (sand, silt, clay) as described by classes of texture. Soil separates are mineral particles, 2.0 mm in diameter and include: gravel 0.2 -7.5 cm and cobbles 7.5-25.0 cm. There are 12 texture group classes definitions and one class definition for Not Applicable (which indicates, for example, water, ice or urban areas).
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The National Ecological Framework for Canada's "Total Land and Water Area by Ecodistrict” dataset provides land and water area values for ecodistrict framework polygons, in hectares. It includes attributes for a polygon’s total area, land-only area and large water body area.
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The National Ecological Framework for Canada's "Permafrost by Ecoprovince” dataset contains tables that provide permafrost information within the ecoprovince framework polygon. It provides permafrost codes and their English and French language descriptions as well as information about the percentage of the polygon that the component occupies. Permafrost is defined as a state of the ground, whether soil or rock, that remains at or below a temperature of 0° C for long periods (NRC, Permafrost Subcommittee, 1988). The minimum period is from one winter, through the following summer, and into the next winter; however, most permafrost has existed for much longer. This formal definition considers only the temperature of the ground, and thus permafrost is a strictly thermal phenomenon, and not a material. At temperatures below 0° C , almost all of the soil moisture occurs in the form of ground ice. Ground ice usually exists at temperature close to its melting point and so is liable to melt if the ground warms. The extent and nature of permafrost, including estimated ice content and typical ground ice forms are derived from the map "Canada - Permafrost" (Natural Resources Canada, 1995).
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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. The mineral soil surface forms are: dissected; hummocky (irregular); inclined; level, rolling; ridged; steep; terraced; undulating. The wetland surface forms are: bog; fen; marsh; swamp.
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The National Ecological Framework for Canada's "Permafrost by Ecoregion” dataset contains tables that provide permafrost information within the ecoregion framework polygon. It provides permafrost codes and their English and French language descriptions as well as information about the percentage of the polygon that the component occupies. Permafrost is defined as a state of the ground, whether soil or rock, that remains at or below a temperature of 0° C for long periods (NRC, Permafrost Subcommittee, 1988). The minimum period is from one winter, through the following summer, and into the next winter; however, most permafrost has existed for much longer. This formal definition considers only the temperature of the ground, and thus permafrost is a strictly thermal phenomenon, and not a material. At temperatures below 0° C , almost all of the soil moisture occurs in the form of ground ice. Ground ice usually exists at temperature close to its melting point and so is liable to melt if the ground warms. The extent and nature of permafrost, including estimated ice content and typical ground ice forms are derived from the map "Canada - Permafrost" (Natural Resources Canada, 1995).
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The National Ecological Framework for Canada's "Permafrost by Ecozone” dataset contains tables that provide permafrost information within the ecozone framework polygon. It provides permafrost codes and their English and French language descriptions as well as information about the percentage of the polygon that the component occupies. Permafrost is defined as a state of the ground, whether soil or rock, that remains at or below a temperature of 0° C for long periods (NRC, Permafrost Subcommittee, 1988). The minimum period is from one winter, through the following summer, and into the next winter; however, most permafrost has existed for much longer. This formal definition considers only the temperature of the ground, and thus permafrost is a strictly thermal phenomenon, and not a material. At temperatures below 0° C , almost all of the soil moisture occurs in the form of ground ice. Ground ice usually exists at temperature close to its melting point and so is liable to melt if the ground warms. The extent and nature of permafrost, including estimated ice content and typical ground ice forms are derived from the map "Canada - Permafrost" (Natural Resources Canada, 1995).
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The National Ecological Framework for Canada's "Soil Texture by Ecodistrict” dataset contains tables that provide soil texture information within the ecodistrict framework polygon. It provides soil texture codes and their English and French language descriptions as well as the percentage of the polygon that the component occupies. Soil texture indicates the relative proportions of the various soil separates (sand, silt, clay) as described by classes of texture. Soil separates are mineral particles, 2.0 mm in diameter and include: gravel 0.2 -7.5 cm and cobbles 7.5-25.0 cm. There are 12 texture group classes definitions and one class definition for Not Applicable (which indicates, for example, water, ice or urban areas).
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The National Ecological Framework for Canada's "Total Land and Water Area by Ecoprovince” dataset provides land and water area values for ecoprovince framework polygons, in hectares. It includes attributes for a polygon’s total area, land-only area and large water body area.
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The National Ecological Framework for Canada's "Total Land and Water Area by Ecoregion” dataset provides land and water area values for ecoregion framework polygons, in hectares. It includes attributes for a polygon’s total area, land-only area and large water body area.
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The National Ecological Framework for Canada's "Land Cover by Ecoregion” dataset provides land cover information within the ecoregion framework polygon. It provides landcover codes and their English and French language description as well as information about the percentage of the polygon that the component occupies.
Arctic SDI catalogue