Toolik Lake Area Vegetation

 

Toolik Lake Area Vegetation

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  1. Barren
    1. map legend color for unit1 1. Anthropogenic barren.


      Unvegetated natural and anthropogenic barrens.
      23.8 ha, 1.2% of map

    2. map legend color for unit2 2. Lichens on rock.


      Xeric blockfields, glacial erratics.
      3.9 ha, 0.2% of map

    3. map legend color for unit3 3. Partially vegetated barrens and revegetated disturbed areas.


      Partially vegetated disturbed barrens on gravel pads, abandoned roads, bulldozed areas.
      24.9 ha, 1.2% of map

  2. Moist Graminoid Tundra
    1. map legend color for unit4 4. Tussock sedge, dwarf-shrub, moss tundra.


      Mesic to subhygric, acidic, shallow to moderate snow. Stable slopes. Some areas on steeper slopes with solifluction are dominated by Bigelow sedge (Carex bigelowii) (no code).
      605.1 ha, 29.8% of map

    2. map legend color for unit5 5. Nontussock sedge, dwarf-shrub, moss tundra.


      Mesic to subhygric, circumneutral, shallow to moderate snow. Solifluction areas and somewhat unstable slopes (42), mainly on Itkillik II glacial surfaces. Some south-facing slopes have scattered glaucous willow (Salix glauca) (33). Also includes some miscellaneous graminoid-dominated sites: deep-snow stream margins (65), landslides, some rocky drained lake basins (45, 75) and animal dens (104).
      306.8 ha, 15.1% of map

  3. Wet Graminoid Tundra and Water
    1. map legend color for unit6 6. Sedge-moss tundra (poor fens).


      Subhydric to hydric, acidic (pH < 4.5). Wet meadows, poor fens in colluvial basins - mainly on older (Itkillik I) glacial surfaces.
      7.8 ha, 0.4% of map

    2. map legend color for unit7 7. Sedge-moss tundra (fens).


      Subhydric to hydric, minerotrophic (pH > 4.5). Water tracks, stream margins, fens, flarks on solifluction slopes - mainly on younger (Itkillik II) glacial surfaces.
      105.6 ha, 5.2% of map

    3. map legend color for unit8 8. Water and herbaceous marsh.


      Lakes, ponds and streams; aquatic vegetation in some protected sites.
      196.5 ha, 9.7% of map

  4. Prostrate-shrub tundra
    1. map legend color for unit9 9. Prostrate dwarf-shrub, fruticose-lichen tundra.


      Xeric to xeromesic, acidic, shallow snow. Exposed sites on glacial till, outwash, ridge tops, exposed slopes, dry river terraces.
      232.2 ha, 11.5% of map

    2. map legend color for unit10 10. Prostrate dwarf-shrub, sedge, forb, fruticose-lichen tundra (nonacidic).


      Xeromesic to mesic, nonacidic with shallow snow cover. Exposed sites on dry river terraces, recent alluvium (13); dry microsites in nonsorted-stripe complexes (16, 18). Dominated by Dryas integrifolia.
      159.5 ha, 7.9% of map

    3. map legend color for unit11 11. Hemi-prostrate and prostrate dwarf-shrub, forb, moss, fruticose-lichen tundra.


      Includes all snowbed types.
      93.0 ha, 4.6% of map

    4. map legend color for unit12 12. Hemi-prostrate dwarf-shrub, fruticose-lichen tundra.


      Subxeric to mesic, acidic, with shallow snow. Shallow depressions on dry glacial till or outwash.
      121.0 ha, 6.0% of map

  5. Erect-shrub tundra
    1. map legend color for unit13 13. Dwarf-shrub or low-shrub, sedge, moss tundra.


      Mesic to subhygric, moderate snow. Lower slopes and upland water-track margins (43, 52), often with solifluction (44). Or palsas and high-centered polygons (51).
      124.3 ha, 6.1% of map

    2. map legend color for unit14 14. Low and tall shrublands.


      Low shrubs in upland water tracks (66, 67), streamsides (61, 62, 63) and south facing slopes (52, 34), mesic to subhydric, often with deep snow.
      23.2 ha, 1.1% of map