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Indicator E.a. - Maps and Data for the Report on the Blue Mountains Mapping Region
 
Figure 6. Forest type based on dominant species. 
Figure 7. Size classes. 
Figure 8. Amount of forested area in each size class by dominant tree species. 
Figure 9. Percent canopy cover of all live trees. 
Table 3. Summary statistics of the diversity of forest types. 
 
 

Figure 6. Forest type based on dominant species.
 
This is a map of the dominant species in the Blue Mountains Mapping Region (Mapping Region 2.)
 

Map Legend and Data for Figure 6
Dominant Species
Hectares (Acres) x 1000
Percent of Total
Forested Area
 Ponderosa pine
1288 (3184)
34.0
 Juniper
711(1756)
18.9
 Douglas-fir
587 (1450)
15.6
 Grand fir
584 (1443)
15.6
 Lodgepole pine
169 (417)
4.5
 Larch
102 (253)
2.7
 Subalpine fir
80 (197)
2.1
 Engelmann spruce
77 (191)
2.1
Other species
17 (42)
<1
 Regenerating forest
120 (296)
3.2
 
Printable map and data file [jpg; 544 KB]

 
 
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Figure 7. Size classes.
 
This is a graphic of a map showing the size classes of forestlands in the Blue Mountains Mapping Region (Mapping Region 2). 
 

Map Legend and Data for Figure 7
Size Class
Hectares (Acres) x 1000
Percent of Total
Forested Area
 Shrub/Seedling
QMDA_DOM <2.5 or CANCOV <10
121 (300)
58.0
 Sapling/Pole
QMDA_DOM <=2.5 and <25.0
1154 (2851)
12.9
Small tree
QMDA_DOM <=25.0 and <37.5
1439 (3556)
16.1
Medium tree
QMDA_DOM <=37.5 and <50.0
732 (1810)
8.2
Large tree
QMDA_DOM <=50.0 and <75.0
301 (743)
3.4
Giant tree
QMDA_DOM >=75.0
7 (18)
<1
 
*QMDA_DOM represents the quadratic mean diameter (in centimeters) or the dominent tree species.  CANCOV represents canopy cover estimated from the Forest Vegetation Simulator. 
 
 
Printable map and data file [jpg; 500 KB]

 
 
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Figure 8. Amount of forested area in each size class by dominant tree species.
 
This is a chart showing the amount of forested area in each size class displayed by dominant tree species for the Blue Mountains Mapping Region. 


*Forest areas represented by the "Other Species" category include red alder, bigleaf maple, incense-cedar, grand fir, Engelmann spruce, Oregon white oak, subalpine fir, Pacific madrone, giant chinquapin, California black oak, western white pine, aspen, knobcone pine, Pacific yew, willow, and black cottonwood.
 
 
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Figure 9. Percent canopy cover of all live trees.
 
This is a graphic of a map showing percent of canopy cover of all live trees in the Blue Mountains Mapping Region. 
 
Map Legend and Data for Figure 9
Canopy Cover Class
Hectares (Acres) x 1000
Percent of Total
Forested Area
 Less than 10%
588 (1453)
15.7
 10% to 40%
1611 (3982)
42.9
 40% to 70%
1272 (3142)
33.9
 Greater than 70%
284 (701)
7.6
 
 
Printable map and data file [jpg; 533 KB]

 
 
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Table 3. Summary statistics of the diversity of forest types.
 
Species
Average
Percent
Canopy
Cover
Area
Hectares (Acres)
Percent
of Total
Forest Area
Number of
Forest
Subtypes
 Ponderosa pine
35
1,288,852 (3,184,822)
34
8
 Juniper
16
710,532 (1,755.764)
19
5
 Douglas-fir
49
586,679 (1,449,717)
16
12
 Grand fir
54
583,978 (1,443,040)
16
9
 Lodgepole pine
47
168,604 (416,629)
4
10
 Western larch
34
102,281 (252,741)
3
7
 Subalpine fir
61
79,787 (197,157)
2
8
 Engelmann spruce
51
77,159 (190,664)
2
6
 Whitebark pine
33
17,034 (42,092)
0.5
3
 White fir
45
15,407 (38,071)
0.4
3
 Mountain mahogany
28
3,818 (9,435)
0.1
2
 Mountain hemlock
91
1,020 (2,521)
0.02
2
 
 
 
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