| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
plant ecology vegetation types ecotypes |
| Location: | Alaska; Fairbanks; Deadwood Creek |
| Description: | Looking through an opening cut in a paper birch stand (slope exposure S 45 W, gradient 26%) across a small valley to a poor black spruce muskeg forest (slope exposure N 25 E, gradient of 50%). Permafrost was encountered at a depth of 8 inch. |
| Date: | 6/27/1957 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
plant ecology vegetation types ecotypes |
| Location: | Alaska; Fairbanks; Ester |
| Description: | Pure quaking aspen stand in which the dominants are 3 to 4 inches d.b.h., 40 to 50 feet in height and 30 years old. On a slope having an exposure of S 20 W and a gradient of 15%. Near Ester, Fairbanks district. |
| Date: | 6/20/1957 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
plant ecology vegetation types ecotypes |
| Location: | Alaska; Matanuska River |
| Description: | A balsam poplar-white spruce stand. The oldest poplars are 200 years of age and 30 inches d.b.h. and 75 feet tall. The oldest white spruce trees are over 105 years of age, 13 inches d.b.h. and 70 feet tall. On Matanuska River, near Palmer, 1951. Used as... |
| Date: | 1951 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
plant ecology vegetation types ecotypes |
| Location: | Alaska; Copper River |
| Description: | View of the Copper River Valley, showing a mosaic of forest types, white spruce, quaking aspen, and willow. This pattern reflects the complex fire history of the area. Used as illustration, Fig. 2, Pg. 5 USDA Tech. Bull. 1133 March, 1956. |
| Date: | 1951 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
plant ecology vegetation types ecotypes |
| Location: | Alaska; Glenn Highway; Nelchina River |
| Description: | Climax white spruce forest along the Nelchina River, marked by eroding bluffs. Along Glenn Highway, at mile 143, looking eastward. 1951. Used as illustration, Fig. 18, Pg. 57 USDA Tech. Bull. 1133 March, 1956. |
| Date: | 1951 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
plant ecology vegetation types ecotypes |
| Location: | Alaska |
| Description: | A quaking aspen-white spruce-black spruce stand approximately 65 years of age. The dominant quaking aspen trees are 6-8" dbh & the spruce trees, which appear in understory, are 2-3 inches dbh & 15-20 feet in height. |
| Date: | 1950 |
| 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 |
| Description: | A 65-year-old quaking aspen stand with an understory of black spruce and white spruce. The dominants are 4 to 9 inches d.b.h. and 45 to 50 feet tall. The spruce trees in the understory are 2 to 4 inches d.b.h. and 25 to 30 feel tall. Arrows point to aspen. |
| Date: | 1950 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
plant ecology vegetation types ecotypes |
| Location: | Alaska; Kenai |
| Description: | A 65-year-old quaking aspen stand. The dominants are 6 to 11 inches d.b.h. and 65 feet tall. A light surface fire killed all understory white spruce in 1947. Kenai Peninsula, 1950. Used as illustration, Fig. 8, Pg. 25 USDA Tech. Bull. 1133 March, 1956. Pl. |
| Date: | 1950 |