| 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 regeneration personnel plot |
| Organisms: | spruce |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Regeneration plots (DI, DJ), looking west from plot center, in MU33 in June 1979 |
| Date: | Jun-79 |
| 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 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: |
personnel regeneration damage |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Person showing damaged leaders on conifer seedlings |
| Date: | 1970s |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
personnel regeneration |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Red spruce regeneration under eastern hemlock overstory on December 3 1958 |
| Date: | 12/3/1958 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
personnel regeneration |
| Organisms: | balsam fir |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Arthur Hart in a second-growth balsam fir stand, balsam fir regeneration by building, in June 1958 |
| Date: | Jun-58 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
personnel regeneration |
| Organisms: | balsam fir |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Balsam fir regeneration in opening east of swamp on Harper Drive in April 1957 |
| Date: | Apr-57 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU14 Compartment Management Study selection system regeneration personnel photo point |
| Organisms: | spruce |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Spruce regeneration 3-5 feet tall, photo point #6 in MU14 on July 5 1956 |
| Date: | 7/5/1956 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU15 Compartment Management Study diameter-limit cut personnel regeneration photo point |
| Organisms: |
balsam fir eastern hemlock red maple American beech |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Opening seeding in to balsam fir, eastern hemlock, red maple, and American beech, photo point #4 (between old woods road and MU14 boundary) in MU15 on July 5 1956 |
| Date: | 7/5/1956 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU5 Compartment Management Study selection system personnel regeneration plot |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Seed trap for seedbed study (plot #6) in fully stocked softwood stand, in MU5 on August 2 1954 |
| Date: | 8/2/1954 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
personnel regeneration |
| Organisms: |
gray birch red maple |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Softwood regeneration overtopped by gray birch and red maple, before weeding, along road to boat landing on August 2 1954 |
| Date: | 8/2/1954 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU17 Compartment Management Study selection system regeneration personnel |
| Organisms: | red spruce |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Slow-growing red spruce regeneration in shade of dense stand, in MU17 on July 28 1954 |
| Date: | 7/28/1954 |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU33 Biomass Harvesting Study strip clearcut personnel road regeneration |
| Organisms: |
red maple eastern white pine aspen |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Robert M. Frank standing on PEF road next to strip clearcut, hardwood regeneration present, in MU33 |
| Date: |
| Collection: | Penobscot Experimental Forest Historical Photo Archive |
| Keywords: |
MU33 Biomass Harvesting Study strip clearcut personnel regeneration |
| Organisms: | aspen |
| Location: | Penobscot Experimental Forest; Maine |
| Description: | Robert M. Frank measuring aspen regeneration in a strip clearcut in MU33 |
| Date: |