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USFS Logo Research Data Archive
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Displaying items 1 - 20 of 47
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"Row Spacing Only, Unfertilized" sign, 5.5 growing seasons after precommercial thinning in plot 21, in Study 58 on March 29 1982
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: Study 58
thinning
sign
plot
Location: Penobscot Experimental Forest; Maine
Description: "Row Spacing Only, Unfertilized" sign, 5.5 growing seasons after precommercial thinning in plot 21, in Study 58 on March 29 1982
Date: 3/29/1982

"Row Spacing Only, Unfertilized" sign, 5.5 growing seasons after precommercial thinning in plot 23, in Study 58 on March 29 1982
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: MU58
thinning
sign
plot
Location: Penobscot Experimental Forest; Maine
Description: "Row Spacing Only, Unfertilized" sign, 5.5 growing seasons after precommercial thinning in plot 23, in Study 58 on March 29 1982
Date: 3/29/1982

Regeneration plots starting from east line (BU, BV), in MU33 in June 1979
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: MU33
shelterwood system
regeneration
plot
Location: Penobscot Experimental Forest; Maine
Description: Regeneration plots starting from east line (BU, BV), in MU33 in June 1979
Date: Jun-79

Regeneration plots starting from east line (BU, BV), Dan Keddell conducting inventory, in MU33 in June 1979
more info/bigger image
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

Regeneration plots starting from east line (BU, BV), in MU33 in June 1979
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: MU33
shelterwood system
plot
regeneration
Location: Penobscot Experimental Forest; Maine
Description: Regeneration plots starting from east line (BU, BV), in MU33 in June 1979
Date: Jun-79

Regeneration plots starting from east line (BU, BV), in MU33 in June 1979
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: MU33
shelterwood system
regeneration
plot
Location: Penobscot Experimental Forest; Maine
Description: Regeneration plots starting from east line (BU, BV), in MU33 in June 1979
Date: Jun-79

Regeneration plots (DI, DJ), looking west from plot center, in MU33 in June 1979
more info/bigger image
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

Seed trap, regeneration plots starting from east side (BU, BV) in strip clearcut in Biomass Harvesting Study, in MU33 in 1979
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: MU33
Biomass Harvesting Study
strip clearcut
regeneration
plot
Location: Penobscot Experimental Forest; Maine
Description: Seed trap, regeneration plots starting from east side (BU, BV) in strip clearcut in Biomass Harvesting Study, in MU33 in 1979
Date: Jun-79

Sunlight on the edge of a strip clearcut in the Biomass Harvesting Study, metal seed trap on bottom left of image, in MU33 on June 23 1970
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: MU33
Biomass Harvesting Study
strip clearcut
regeneration
plot
Location: Penobscot Experimental Forest; Maine
Description: Sunlight on the edge of a strip clearcut in the Biomass Harvesting Study, metal seed trap on bottom left of image, in MU33 on June 23 1970
Date: 6/23/1970

View from permanent sample plot 4/3 while second cut of three-stage uniform shelterwood was progressing, in MU29 on July 24 1968
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: MU29
Compartment Management Study
shelterwood system
logging
plot
Location: Penobscot Experimental Forest; Maine
Description: View from permanent sample plot 4/3 while second cut of three-stage uniform shelterwood was progressing, in MU29 on July 24 1968
Date: 7/24/1968

Uniform shelterwood with three-stage overstory removal, view from plot 5/2 before second cut, in MU29 on July 24, 1968
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: MU29
Compartment Management Study
shelterwood system
plot
Location: Penobscot Experimental Forest; Maine
Description: Uniform shelterwood with three-stage overstory removal, view from plot 5/2 before second cut, in MU29 on July 24, 1968
Date: 7/24/1968

View on and from plot 1/2 before 2nd cut completed, in MU 29 on July 23, 1968
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: MU29
Compartment Management Study
shelterwood system
plot
Location: Penobscot Experimental Forest; Maine
Description: View on and from plot 1/2 before 2nd cut completed, in MU 29 on July 23, 1968
Date: 7/23/1968

Personnel inventorying seedlings after a prescribed burn in MU33 in 1965
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: MU33
Biomass Harvesting Study
personnel
plot
site preparation
Location: Penobscot Experimental Forest; Maine
Description: Personnel inventorying seedlings after a prescribed burn in MU33 in 1965
Date: 1965

A metal seed trap near the road in a strip clearcut in MU33 in the 1960s
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: MU33
Biomass Harvesting Study
strip clearcut
regeneration
road
plot
Location: Penobscot Experimental Forest; Maine
Description: A metal seed trap near the road in a strip clearcut in MU33 in the 1960s
Date: 1960s

Post-burn image of a strip clearcut with a metal seed trap in MU33 in the 1960s
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: MU33
Biomass Harvesting Study
strip clearcut
regeneration
site preparation
plot
Location: Penobscot Experimental Forest; Maine
Description: Post-burn image of a strip clearcut with a metal seed trap in MU33 in the 1960s
Date: 1960s

A metal seed trap In a strip clearcut in MU33 in the 1960s
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: MU33
Biomass Harvesting Study
strip clearcut
regeneration
plot
Location: Penobscot Experimental Forest; Maine
Description: A metal seed trap In a strip clearcut in MU33 in the 1960s
Date: 1960s

11-inch dbh red maple and 23-inch dbh eastern hemlock marked to release 11-inch dbh red spruce, photo point #5 (permanent sample plot 6/1) in MU13 on July 5 1956
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: MU13
Compartment Management Study
diameter-limit cut
marking
release
plot
photo point
Organisms: red maple
eastern hemlock
red spruce
Location: Penobscot Experimental Forest; Maine
Description: 11-inch dbh red maple and 23-inch dbh eastern hemlock marked to release 11-inch dbh red spruce, photo point #5 (permanent sample plot 6/1) in MU13 on July 5 1956
Date: 7/5/1956

13-inch dbh eastern hemlock chemically debarked, 9-inch dbh spruce left, photo point #2 (permanent sample plot 2/1) in MU14 on July 5 1956
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: MU14
Compartment Management Study
selection system
personnel
plot
photo point
Organisms: eastern hemlock
spruce
Location: Penobscot Experimental Forest; Maine
Description: 13-inch dbh eastern hemlock chemically debarked, 9-inch dbh spruce left, photo point #2 (permanent sample plot 2/1) in MU14 on July 5 1956
Date: 7/5/1956

Large opening made about 12 years ago, bracken fern and raspberry with few spruce, balsam fir, or eastern hemlock seedlings, photo point #1 (near permanent sample plot 3/1) in MU14 on July 5 1956
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: MU14
Compartment Management Study
selection system
regeneration
plot
photo point
Organisms: spruce
balsam fir
eastern hemlock
raspberry
bracken fern
Location: Penobscot Experimental Forest; Maine
Description: Large opening made about 12 years ago, bracken fern and raspberry with few spruce, balsam fir, or eastern hemlock seedlings, photo point #1 (near permanent sample plot 3/1) in MU14 on July 5 1956
Date: 7/5/1956

Larger trees chemically debarked, 9-10 inch dbh spruce and eastern hemlock left, photo point #1 (permanent sample plot 3/5) in MU15 on July 5 1956
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: MU15
Compartment Management Study
diameter-limit cut
personnel
plot
photo point
Organisms: spruce
eastern hemlock
Location: Penobscot Experimental Forest; Maine
Description: Larger trees chemically debarked, 9-10 inch dbh spruce and eastern hemlock left, photo point #1 (permanent sample plot 3/5) in MU15 on July 5 1956
Date: 7/5/1956