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USFS Logo Research Data Archive
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Displaying items 1 - 10 of 11
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Regenerating stand 14 years after second cut in two-stage overstory removal in shelterwood stand, MU21 on March 29 1982
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: MU21
Compartment Management Study
shelterwood system
regeneration
Location: Penobscot Experimental Forest; Maine
Description: Regenerating stand 14 years after second cut in two-stage overstory removal in shelterwood stand, MU21 on March 29 1982
Date: 3/29/1982

Management unit sign and stand data - unthinned uniform shelterwood stand in MU23 on March 29 1982
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: MU23
Compartment Management Study
shelterwood system
sign
Location: Penobscot Experimental Forest; Maine
Description: Management unit sign and stand data - unthinned uniform shelterwood stand in MU23 on March 29 1982
Date: 3/29/1982

Completed spacing favoring spruce, uniform shelterwood stand, in MU23 on March 29 1982
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: MU23
Compartment Management Study
shelterwood system
thinning
release
Organisms: spruce
Location: Penobscot Experimental Forest; Maine
Description: Completed spacing favoring spruce, uniform shelterwood stand, in MU23 on March 29 1982
Date: 3/29/1982

Completed uniform shelterwood spacing job favoring spruce with a few hardwoods in MU23 on March 29 1982
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: MU23
Compartment Management Study
shelterwood system
personnel
thinning
release
Organisms: spruce
Location: Penobscot Experimental Forest; Maine
Description: Completed uniform shelterwood spacing job favoring spruce with a few hardwoods in MU23 on March 29 1982
Date: 3/29/1982

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
more info/bigger image
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

Looking across two-meter-wide corridor-only spacing (row thinning) in an uniform shelterwood stand in MU23 on March 29 1982
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: MU23
Compartment Management Study
shelterwood system
thinning
Location: Penobscot Experimental Forest; Maine
Description: Looking across two-meter-wide corridor-only spacing (row thinning) in an uniform shelterwood stand in MU23 on March 29 1982
Date: 3/29/1982

Close-up of corridor-only spacing (row thinning) in an uniform shelterwood stand, in MU23 on March 29 1982
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: MU23
Compartment Management Study
shelterwood system
thinning
Location: Penobscot Experimental Forest; Maine
Description: Close-up of corridor-only spacing (row thinning) in an uniform shelterwood stand, in MU23 on March 29 1982
Date: 3/29/1982

Management unit sign, unspaced trees behind and trees spaced 2-by-3-meters across the road on the right, in MU23 on March 29 1982
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: MU23
Compartment Management Study
shelterwood system
thinning
sign
Organisms: spruce
Location: Penobscot Experimental Forest; Maine
Description: Management unit sign, unspaced trees behind and trees spaced 2-by-3-meters across the road on the right, in MU23 on March 29 1982
Date: 3/29/1982

Regenerating stand 14 years after second cut in two-stage overstory removal in shelterwood stand, in Study 58 on March 29 1982
more info/bigger image
Collection: Penobscot Experimental Forest Historical Photo Archive
Keywords: Study 58
thinning
regeneration
Location: Penobscot Experimental Forest; Maine
Description: Regenerating stand 14 years after second cut in two-stage overstory removal in shelterwood stand, 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 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