| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU2 Logging Study shelterwood system equipment logging road |
| Organisms: |
balsam fir spruce |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Equipment used for cutting conifers along the road in the Logging Study, in MU2 in 1984 |
| Date: | 1984 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU23 Compartment Management Study shelterwood system thinning |
| Organisms: |
spruce balsam fir |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Two-meter-wide corridor-only spacing (row thinning) in an uniform shelterwood stand on a somewhat poorly to poorly drained site, in MU23 on March 29 1982 |
| Date: | 3/29/1982 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU33 shelterwood system |
| Organisms: | balsam fir |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Stand after density reduction to 55 square feet of basal area in shelterwood cut (CU, CV), in MU33 in June 1979 |
| Date: | Jun-79 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU33 shelterwood system regeneration |
| Organisms: | balsam fir |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Regeneration plots starting from east line (BU, BV), in MU 33 in June 1979 |
| Date: | Jun-79 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU33 shelterwood system personnel plot regeneration |
| Organisms: | balsam fir |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Regeneration plots starting from east line (BU, BV), Dan Keddell conducting inventory, in MU33 in June 1979 |
| Date: | Jun-79 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU33 shelterwood system personnel |
| Organisms: | balsam fir |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Fran Laurler reducing stand density to 55 square feet of basal area in shelterwood cut (DI, DJ), in MU33 in June 1979 |
| Date: | Jun-79 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU33 shelterwood system |
| Organisms: | balsam fir |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Looking south down a transect (CL, CM), in MU33 in June 1979 |
| Date: | Jun-79 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU23 Compartment Management Study shelterwood system regeneration |
| Organisms: |
spruce balsam fir eastern white pine red maple |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Regeneration three years after final overstory removal in uniform shelterwood, in MU23 in 1975 |
| Date: | 1975 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU23 Compartment Management Study shelterwood system equipment regeneration personnel |
| Organisms: |
spruce balsam fir eastern white pine |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Regeneration three years after final overstory removal in uniform shelterwood, person with snow machine, in MU23 in 1975 |
| Date: | 1975 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU23 Compartment Management Study shelterwood system equipment regeneration |
| Organisms: |
spruce balsam fir eastern white pine red maple |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Regeneration three years after final overstory removal in uniform shelterwood, snow machine, in MU23 in 1975 |
| Date: | 1975 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU23 Compartment Management Study shelterwood system personnel regeneration |
| Organisms: |
spruce balsam fir eastern white pine red maple |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | A person standing with regeneration three years after final overstory removal in uniform shelterwood, in MU23 in 1975 |
| Date: | 1975 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU23 Compartment Management Study shelterwood system personnel regeneration equipment |
| Organisms: |
spruce balsam fir eastern white pine red maple |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Regeneration three years after final overstory removal in uniform shelterwood, person with snow machine, in MU23 in 1975 |
| Date: | 1975 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU23 Compartment Management Study shelterwood system regeneration |
| Organisms: |
spruce balsam fir eastern white pine |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Regeneration three years after final overstory removal in uniform shelterwood, in MU23 in 1975 |
| Date: | 1975 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU23 Compartment Management Study shelterwood system regeneration plot photo point |
| Organisms: |
spruce balsam fir raspberry |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Patch of raspberry with a few spruce and balsam fir seedlings, photo point #6 (permanent sample plot 2/1) in MU23 on May 24 1955 |
| Date: | 5/24/1955 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU23 Compartment Management Study shelterwood system marking photo point |
| Organisms: | balsam fir |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Pre cut balsam fir, 7-11 inches marked, in MU23 on March 31 1955 |
| Date: | 3/31/1955 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU23 Compartment Management Study shelterwood system marking photo point |
| Organisms: |
balsam fir red spruce |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Pre cut balsam fir and red spruce stand. Fir are dying from top. Marked 8-11" fir, leaving 5-7" spruce, in MU23 on March 31 1955 |
| Date: | 3/31/1955 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU23 Compartment Management Study shelterwood system personnel photo point |
| Organisms: |
balsam fir American beech red maple |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Before cutting in mixed stand. Balsam fir 7 inches, American beech 9 inches, red maple 10 inches, in MU23 on March 31 1955 |
| Date: | 3/31/1955 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU23 Compartment Management Study shelterwood system photo point |
| Organisms: |
balsam fir paper birch red maple beech |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Pre cut, balsam fir, paper birch, red maple, beech, photo point #2 in MU23 on March 21 1955 |
| Date: | 3/21/1955 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU23 Compartment Management Study shelterwood system photo point |
| Organisms: | balsam fir |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Before cutting in 55-year old balsam fir stand. Trees range in size up to 11 inches dbh, in MU23 on March 21 1955 |
| Date: | 3/21/1955 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU21 Compartment Management Study shelterwood system |
| Organisms: | balsam fir |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Shelterwood silviculture, in MU21 |
| Date: |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU23 Compartment Management Study shelterwood system regeneration |
| Organisms: | balsam fir |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | 6-10 foot tall balsam fir in a 15 year-old opening in MU23 |
| Date: |