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Indicator E.a. - Maps and Data for the Report on the Coast Range Mapping Region
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Article Content
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Figure 10. Forest type based on dominant species.
Figure 11. Size classes.
Figure 12. Amount of forested area in each size class by dominant tree species.
Figure 13. Percent canopy cover of all live trees.
Table 4. Summary statistics of the diversity of forest types.
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| Figure 10. Forest type based on dominant species. |
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Map Legend and Data for Figure 10
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Dominant Species
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Hectares (Acres) x 1000
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Percent of Total
Forested Area
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 Douglas-fir |
1,349,907 (3,335,693)
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68.5
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 Alder |
231,969 (573,207)
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11.8
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 Western hemlock |
154,098 (380,766)
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7.8
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 Sitka spruce |
48,936 (120,923)
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2.5
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 Western redcedar |
35,200 (86,980)
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1.8
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 Bigleaf maple |
33,218 (82,083)
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1.7
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 Tanoak |
27,029 (66,791)
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1.4
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 Oregon White Oak |
20,868 (51,567)
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1.0
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 Beach pine |
19,215 (47,481)
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1.0
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 Other species |
49,060 (121,231)
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2.5
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 Regenerating forest |
114,054 (281,835)
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5.8
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Printable map and data file [jpg; 337 KB]
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| Figure 11. Size classes. |
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Map Legend and Data for Figure 11
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| Size Class |
Hectares (Acres) x 1000
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Percent of Total
Forested Area
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 Shrub/Seedling
QMDA_DOM <2.5 or CANCOV <10
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114 (283)
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5.5
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 Sapling/Pole
QMDA_DOM <=2.5 and <25.0
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717 (1771)
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34.4
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 Small tree
QMDA_DOM <=25.0 and <37.5
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533 (1318)
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25.6
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Medium tree
QMDA_DOM <=37.5 and <50.0
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279 (690)
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13.4
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 Large tree
QMDA_DOM <=50.0 and <75.0
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267 (659)
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12.8
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Giant tree
QMDA_DOM >=75.0
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171 (422)
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8.2
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*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; 310 KB]
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| Figure 12. Amount of forested area in each size class by dominant tree species. |
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*Forest areas represented by the “Other Species” category include California laurel, Port Orford cedar, noble fir, willow, sugar pine, grand fir, Pacific madrone, California black oak, redwood, giant chinquapin, western white pine, knobcone pine, canyon live oak, and dogwood.
Printable chart [jpg; 60 KB]
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| Figure 13. Percent canopy cover of all live trees. |
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Map and Legend for Figure 13
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| Canopy Cover Class |
Hectares (Acres) x 1000
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Percent of Total
Forested Area
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Less than 10%
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254 (628)
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12.2
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10% to 40%
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296 (731)
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14.2
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40% to 70%
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681 (1684)
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32.7
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Greater than 70%
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852 (2106)
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40.9
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Printable map and data file [jpg; 283 KB]
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| Table 4. Summary statistics of the diversity of forest types. |
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| Species |
Average
Percent
Canopy
Cover
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Area
Hectares (Acres)
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Percent
of Total
Forest Area
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Number of
Forest
Subtypes
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| Douglas-fir |
72
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1,349,907 (3,335,693)
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69
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23
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| Alder |
64
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231,969 (573,207)
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12
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7
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| Western hemlock |
82
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154,098 (380,786)
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8
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7
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| Sitka spruce |
71
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48,936 (120,923)
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2
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5
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| Western redcedar |
65
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35,200 (86,980)
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2
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6
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| Bigleaf maple |
58
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33,218 (82,083)
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2
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8
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| Tanoak |
89
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27,029 (66,791)
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1
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8
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| Oregon white oak |
53
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20,868 (51,567)
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1
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2
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| Beach pine |
40
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19,215 (47,481)
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1
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5
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| California laurel |
72
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9,405 (23,241)
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0.5
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6
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| Port Orford cedar |
62
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7,759 (19,172)
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0.4
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5
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| Noble fir |
49
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6,136 (15,162)
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0.3
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2
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| Willow |
50
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6,099 (15,070)
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0.3
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1
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| Sugar pine |
52
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5,179 (12,798)
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0.3
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2
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| Grand fir |
55
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4,485 (11,083)
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0.2
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4
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| Pacific madrone |
62
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3,170 (7,833)
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0.2
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5
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| California black oak |
75
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2,494 (6,163)
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0.1
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3
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| Redwood |
71
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1,858 (4,591)
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0.1
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2
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| Giant chinquapin |
66
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1,079 (2,667)
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0.05
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3
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| Western white pine |
42
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642 (1,586)
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0.03
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4
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| Knobcone pine |
64
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277 (685)
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0.01
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1
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| Canyon live oak |
78
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275 (680)
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0.01
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1
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| Dogwood |
84
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202 (499)
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0.01
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1
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