| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
plant ecology vegetation types ecotypes |
| Location: | Alaska; Interior |
| Description: | An excellent pole stand of Alaska white birch w/an understory of white spruce. |
| Date: | 1950 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
plant ecology vegetation types, ecotypes |
| Location: | Alaska; Interior |
| Description: | A 55-year-old stand of black spruce. Dominants are 2 to 4 inches d.b.h. and about 15 feet tall. Snags are relicts of 2 fire-killed stands. The last fire killed a pole stand of black spruce and an earlier fire killed a stand of white spruce containing tree... |
| Date: | 1950 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
plant ecology vegetation types, ecotypes |
| Location: | Alaska; Interior |
| Description: | A white spruce-Alaska paper birch stand. Approximately 110 years old. Used as illustration, Fig. 13, Pg. 41, USDA Tech. Bull. 1133, 1956. Plate 4, pg. 18, AFRC Station Paper No. 1, Oct 1953. |
| Date: | 1950 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
plant ecology vegetation types, ecotypes |
| Location: | Alaska; Interior |
| Description: | A 20-year-old quaking aspen stand. The dominants are 2 to 3 inches d.b.h. and 25 to 30 feet tall. Used as illustration, Fig. 14, Pg. 46, USDA Tech. Bull. 1133. |
| Date: | 1950 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
plant ecology vegetation types, ecotypes |
| Location: | Alaska; Interior |
| Description: | A quaking aspen-white spruce stand in which the dominants quaking aspen trees are approximately 115 years of age, 8 to 12 inches d.b.h. and 60 feet tall. The white spruce trees are 5 to 11 inches d.b.h. and 40 to 50 feet tall. Much of the quaking aspen is... |
| Date: | 1950 |