ONTARIO LAND COVER BASELINE CLASS DESCRIPTIONS VALUES 11. Prairie Ground layer dominated by prairie graminoids. Tree and shrub cover < 25%. 12. Savannah Ground layer dominated by prairie graminoids. Variable cover of open-grown trees. Tree cover: 25 to 35%. 13. Alvar Level, unfractured limestone bedrock or patchy mosaic of bare and rock pavement and shallow substrates. Vegetative cover < 25%. 14. Dune Exposed sands formed by extant or historical shoreline or aeolian processes. Vegetative cover < 25%. 15. Meadow Open herbaceous or graminoid communities. Tree and shrub cover < 25%. 16. Shrubland Shrub community. Tree cover < 25%. Shrub cover => 25%. 17. Barren Primarily open areas. Includes: exposed non-calcareous bedrock, mineral barren, shorelines, cliffs or bluffs. Tree cover < 10%. Shrub cover < 25%. 18. Sparse treed Primarily open areas with sparse tree cover. Includes: exposed non-calcareous bedrock, mineral barren, shorelines, cliffs or bluffs. Tree cover: 10 to 25%. 21. Coniferous forest Tree cover => 25%. Upland coniferous tree species => 75% canopy cover > 2m in height. 22. Mixedwood forest Tree cover => 25%. Upland coniferous tree species => 25% and upland deciduous tree species => 25% of canopy cover > 2m in height. 23. Deciduous forest Tree cover => 25%. Upland deciduous tree species => 75% canopy cover > 2m in height. 24. Transitional forest Natural and/or anthropogenic disturbance in areas previously coniferous, mixedwood or deciduous forest. Includes new tree plantings. Tree cover and height in various stages of recovery. 25. Hedge row Trees with linear organization and uniform tree height. Tree cover => 60%. Trees > 2m in height. 31. Coniferous treed swamp Water table seasonally or permanently at, near or above substrate surface. Tree cover => 25%. Hydrophytic coniferous tree species => 75% of canopy cover. 32. Mixedwood treed swamp Water table seasonally or permanently at, near or above substrate surface. Tree cover => 25%. Hydrophytic coniferous tree species => 25% and hydrophytic deciduous tree species => 25% of canopy cover. 33. Deciduous treed swamp Water table seasonally or permanently at, near or above substrate surface. Tree cover => 25%. Hydrophytic deciduous tree species => 75% of canopy cover. 34. Transitional treed swamp Water table seasonally or permanently at, near or above substrate surface. Natural and/or anthropogenic disturbance in areas previously coniferous, mixedwood or deciduous treed swamp. Includes new tree plantings. Tree cover and height in various stages of recovery. 35. Thicket swamp Water table seasonally or permanently at, near or above substrate surface. Tree cover < 25%. Hydrophytic shrubs => 25%. 36. Bog Water table seasonally or permanently at, near or above substrate surface. Ombrotrophic peatland. Open, shrub or treed communities. Tree cover < 25%. Low ericaceous (<2m) shrubs dominate. Sphagnum peat substrate. 37. Fen Water table seasonally or permanently at, near or above substrate surface. Mineotrophic peatland. Open, shrub or treed communities. Tree cover < 25%. Sedges, grasses and low (<2m) ericaceous shrubs dominate. Brown moss substrate. 38. Marsh Water table seasonally or permanently at, near or above substrate surface. Dominated by graminoids or hydrophytic macrophytes. Tree and shrub cover < 25%. 41. Water Water depth > 2 m. Absence of hydrophytic macrophytes, shrub or treed vegetation. 51. Built up area-pervious Green space contained by anthropogenic development and/or maintained by human alteration. Includes: urban recreation areas (parks, golf courses, playing fields or ski runs), manicured lawns, urban brownfields or transportion right-of-ways. 52. Anthropogenic Anthropogenic land use with impervious surface. Includes: residential, industrial, commercial, civic areas, mines, or aggregate extraction. 53. Cropland Agricultural fields managed as row crops, orchards or vineyards. 54. Hay/pasture Agricultural fields managed as perennial crops - hay or improved pasture. 55. Transportation Highways, roads or airport runways. 99. Unclassified Areas with insufficient data for classification.