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Coast Forest Region Version 6 Provincial Biogeoclimatic Zones


Variant: CWHms2 Coastal Western Hemlock, Central Moist Submaritime
Description: DISTRIBUTION: The CWHms2 occurs at lower elevations in submaritime and subcontinental areas north of the head of Knight Inlet. Its major occurrences include the lower Kimsquit River, southern Dean Channel, Labouchere Channel, South Bentinck Arm, and the main rivers draining into the east end of Owikeno Lake. Elevational limits range from sea level to approximately 700 m.

CLIMATE: The CWHms2 has a climate transitional between the coast and interior, characterized by moist, cool winters and cool but relatively dry  summers. Historically, dry summers have resulted in stand-replacing wildfires, which have contributed to the abundance of Fd in this variant. Snowfall is relatively heavy, particularly in the upper elevational ranges of the variant. Climate data are unavailable for this variant.

VEGETATION (Table 16): Forests on zonal sites are dominated by Hw, Fd, Cw, and Ba. Common understorey species include Alaskan blueberry, and a well-developed moss layer featuring Hylocomium splendens, Rhytidopsis robusta, and Rhytidiadelphus loreus. Less commonly occurring species include black huckleberry, oval-leaved blueberry, false azalea, bunchberry, queen's cup, five-leaved bramble, one-sided wintergreen, and Pleurozium schreberi. Higher elevations featuring greater snowfall and cooler temperatures are dominated by Hw, Ba, and Cw, with Fd restricted mainly to drier sites.


Area (Ha): 174421.72  
TEM Area (Ha): 24683.32  
% of Prov BEC w/ TEM: 14.15  
  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 6] in PDF Format
  2. The Ecology of the Coastal Western Hemlock Zone - Brochure 31
  3. A Field Guide to Site Identification and Interpretation for the Vancouver Forest Region
  4. TEM Website