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Coast Forest Region Version 6 Provincial Biogeoclimatic Zones


Variant: MHmm2 Mountain Hemlock, Leeward Moist Maritime
Description: DISTRIBUTION: The MHmm2 occurs at high elevations in submaritime areas of the coast. The lower elevational limit is between 900 and 1200 m and the upper limit is between 1200 and 1400 m.

CLIMATE: The MHmm2 has a climate transitional between the coast and interior, characterized by long, moist, cold winters and short, cool, moist summers. The climate is somewhat colder and drier than the windward variant. Frozen soils are rare due to the insulating snowpack, but growing season frosts are common. Total snowfall is high, resulting in substantial snowpacks that can persist into July.

VEGETATION: Forests on zonal sites are dominated by Ba and Hm, with Hw (lower elevations) and Bl occurring less commonly. Alaskan blueberry, black huckleberry, oval-leaved blueberry, five-leaved bramble, Rhytidiopsis robusta, and Pleurozium schreberi are common in the understorey. White-flowered rhododendron may also be present. Vegetation and stand characteristics are strongly influenced by local topography, which affects timing and pattern of snowmelt. Upper elevations grade into discontinuous forests of the parkland subzone (MHmmp2).


Area (Ha): 691679.28  
TEM Area (Ha): 47956.25  
% of Prov BEC w/ TEM: 6.93  
  For lists of red and blue listed communities and species in this subzone, please search within the Ministry of Environment's BC Species and Ecosystems Explorer
Further Links:
  1. Download Special Report Series 6 [Chapter 7] in PDF Format
  2. The Ecology of the Mountain Hemlock Zone - Brochure 51
  3. A Field Guide to Site Identification and Interpretation for the Vancouver Forest Region
  4. TEM Website