Anvil Island Sensitive Ecosystem Mapping

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Sensitive and Terrestrial
Ecosystems Label
Salt Spring
Island
Saturna
Island
Mayne
Island
Galiano
Island
Vancouver Island
Vancouver
Anvil Island
Sensitive Ecosystem Mapping
Airphoto - 2006
$
UTM Projection Zone 10 NAD83
Scale: 1:10,000
  
  
  
 
 
 
 
 
 
 
 
The  example  label  above  indicates  the  SEM  and  TEM  atri but es   ￿
mapped  for  polygon  7838.    The  polygon  occurs  in  the  Coast 
Western Hemlock Eastern Very Dry Maritme   var i ant ;  60%   of   the  ￿
polygon  is  WD:mx - Woodland:    mixed  conifer  and  broadleaf 
(Primary Ecosystem), map code AM - Arbutus - Hairy manzanita, 
structural stage 5.  The remaining 40% of the polygon is WD:co - 
Woodland:  conifer  dominated,  map  code    DC - Douglas-fir  ￿- 
Western hemlock – Cladina  (Secondary and Tertar y  ￿
Ecosystems).    Of  this  40%,  20%  is  structural  stage  4  and  20%  is 
structural stage 5.  
 
 
SE Subclass 
 
 
Biogeoclimatic Unit 
* Indicates a field sample 
% of polygon  
(as decile) 
SE Class 
Polygon Number 
Mapcode 
Structural Stage 
Secondary Ecosystem 
Tertiary Ecosystem 
Primary Ecosystem 
7838* 
CWHxm1 
  6WD:mx AM 5 
2WD:co DC 4 
2WD:co DC 5 
Sensitive and Terrestrial Ecosystems LabelStructural Stage & Biogeoclimatic UnitsTerrestrial Ecosystem Map Codes and Site Unit Names
00.250.50.7510.125
Kilometers
Sensitive ecosystems are fragile and/or rare, or are ecologically important because of the diversity of species they support.
Sensitive Ecosystems
Importance:
Subclasses:
Rare Ecosystems
Usually conifer-dominated, occasionally deciduous, dry to moist forest types, structural stage 6, generally >80yrs.
Mature Forest (MF):
Other important ecosystems have high biodiversity values.
co(conifer dominated) - greater than 75% coniferous species
mx(mixed conifer and deciduous) - a minimum of 25% cover of either group is included in the total tree cover
Definition:
Within 20 years, many Mature Forests that were logged early this century will become Older Forests.
The biodiversity values of Mature Forests generally become higher with age. This means it will be
able to sustain more and larger species of plants and animals.
Future older forests
Mature Forest stands provide connections between

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