| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
regeneration and formation of stands tending of stands and trees thinnings |
| Location: | Alaska; Kosciusko Island |
| Description: | A 65 year old stand when chemically thinned in 1962. Trees killed by frilling and poisoning with ammate crystals. Kosciusko Island. |
| Date: | 7/1972 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
silvicultural systems constitution and composition of stands forms of stand high forest systems clear felling |
| Location: | Alaska; Kosciusko Island |
| Description: | Clearcuts @ Kosciusko Island. Cutting took place in late 1950's. Snags were left standing. |
| Date: | 7/1972 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
silvicultural systems constitution and composition of stands forms of stand high forest systems clear felling |
| Location: | Alaska; Prince of Wales Island; El Capitan Passage |
| Description: | Clearcutting on north side of El Capitan Pass. |
| Date: | 7/1972 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
regeneration and formation of stands artificial regeneration |
| Location: | Alaska |
| Description: | Douglas-fir aerial seeding. Spen Israelson standing next to Douglas-fir seeded in in 1961. Growth is slow and trees look chloretic. |
| Date: | 7/1972 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
regeneration and formation of stands degree of utilization and waste clearing the felling site natural regeneration |
| Location: | Alaska; Kosciusko Island |
| Description: | Kosciusko Is. fertilization area. Fertilized by aerial application of urea in 1971. Area logged 1955. |
| Date: | 7/1972 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
regeneration and formation of stands degree of utilization and waste clearing the felling site natural regeneration |
| Location: | Alaska; Kosciusko Island |
| Description: | Regeneration release area on Kosciusko Is. With 10 acres thinned to 10' x 10'. Area logged in 1955. In 1971 the area was aerially sprayed with nitrogen fertilizer (urea). |
| Date: | 7/1972 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
regeneration and formation of stands degree of utilization and waste clearing the felling site natural regeneration |
| Location: | Alaska; Kosciusko Island |
| Description: | Regeneration release area on Kosciusko Is. With 10 acres thinned to 10' x 10'. Area logged in 1955. In 1971 the area was aerially sprayed with nitrogen fertilizer (urea). |
| Date: | 7/1972 |