Beautiful path in a forest during a vibrant summer day. Taken in Raft Cove Provincial Park, Northern Vancouver Island, BC, Canada.

15. Age Classes of the Sechelt Landscape Unit

This map again shows that old growth is very rare in the Sechelt Landscape Unit Plan (as shown in the purple areas). As well, both Sechelt and Chapman LUs are dominated by young age classes.

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This is the typical pattern in virtually all of the LUs in the SCNRD; old and mature forests at lower elevations are rare and dominated by young biologically simplified ecosystems. Mid-elevation forests are in only marginally better condition.

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Glossary of Terms

Biomass: refers to the total amount of organic matter (i.e., anything that comes from plants and animals). 

Biogeoclimatic (BEC) Zone: the classification system used to identify an area based on the dominant type of vegetation, climate, and soil characteristics at its climax 

Climax Old-Growth: the final stage of a forest stand when left undisturbed by humans 

Biogeoclimatic Zone Abbreviations

  • AT: Alpine Tundra
  • BG: Bunchgrass
  • BWBS: Boreal White and Black Spruce
  • CDF: Coastal Douglas-Fir
  • CWH: Coastal Western Hemlock
  • ESSF: Engelmann Spruce - Subalpine Fir
  • ICH: Interior Cedar - Hemlock
  • IDF: Interior Douglas-Fir
  • MH: Mountain Hemlock
  • MS: Montane Spruce
  • PP: Ponderosa Pine
  • SBPS: Sub-Boreal Pine - Spruce
  • SBS: Sub-Boreal Spruce
  • SWB: Spruce - Willow - Birch

Landscape Units of the SCNRD

  • Bishop
  • Brem
  • Brittain
  • Bunster
  • Bute East
  • Bute West
  • Chapman
  • Cortes
  • Haslam
  • Homathko
  • Homfray
  • Howe
  • Jervis
  • Lois
  • Narrows
  • Quatam

Biogeoclimatic Subzone Codes

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