The Pacific Northwest Permanent Sample Plot Program (PSP) reviews a map of the day's sample plot. The map was first created in 1979.
Pacific Northwest Permanent Sample Plot Program, Field work 2018
The Pacific Northwest Permanent Sample Plot Program is a long-term study of forest vegetation across the Pacific Northwest. The program samples 135 plots across a diversity of forest types in Oregon and Washington. Many of the plots are within the HJ Andrews Experimental Forest. Long-term observational data such as these are essential to understanding the fundamental processes of tree growth, mortality, regeneration and plant succession. This photo gallery highlights field work at the Andrews Forest in summer 2018.
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_001
Rob Pabst shares a map of the day's study site
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_002
details of a 1979 map of the study sit, with stems diagrammed and mapped by hand
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_003
David Shaw, Principal Investigator, OSU
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_004
Rob Pabst, project coordinator
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_005
David Bell, Research Forester, Pacific Northwest Research Station
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_006
field crew reviews aerial images of the day's study site
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_007
Rob Pabst, project coordinator, shares data on trends in tree mortality over four decades
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_008
David Bell shares LIDAR images and tree height data of the day's sample plot
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_009
David Shaw measures tree diameter with a DBH tape
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_010
old growth forest near Mack Creek
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_011
the field crew measures an old-growth tree
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_012
the field crew measures an old-growth tree
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_013
the field crew measures an old-growth tree
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_014
the field crew measures an old-growth tree
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_015
old growth forest near Mack Creek
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_016
the field crew talks with Ian Vorster, Editor of OSU's research magazine, Terra
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_017
Rob Pabst checks a tagged tree
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_018
Blue huckleberry (Vaccinium deliciosum)
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_019
bark of pacific yew (Taxus brevifolia)
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_020
field crew measuring size, in diameter, of trees within their plot
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_021
Bryan Sipe, field crew member, measuring DBH (diameter breast height) with a tape
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_022
Bryan Sipe, field crew member, measuring DBH (diameter breast height) with a tape
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_023
Jessie Hild, field crew member, measuring DBH (diameter breast height)
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_024
Jessie Hild, field crew member, measuring DBH (diameter breast height)
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_025
Amanda Brackett, field crew leader, recording data in the field on tree mortality
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_026
Dave Shaw looks at strands of Armillaria root rot in a dead tree in the sample plot
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_027
Dave Shaw shares signs of Armillaria root rot in a dead tree in the sample plot
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_028
strands of Armillaria root rot from a dead tree in the sample plot
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_029
Rob Pabst, project coordinator
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_030
signs of Armillaria root rot in a dead tree in the sample plot
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_031
signs of Armillaria root rot in a dead tree in the sample plot
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_032
signs of Armillaria root rot in a dead tree in the sample plot
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_033
signs of Armillaria root rot in a dead tree in the sample plot
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_034
Dave Bell (left) and Rob Pabst (right) record data on tree mortality
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_035
Rob Pabst measuring DBH
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_036
measuring DBH (diameter breast height)
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_037
Mack Creek
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_038
Mack Creek
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_039
a tagged tree in a sample plot
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_040
Amanda Brackett, field crew leader, measuring DBH of a large western red cedar
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_041
recording data in the field
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_042
Dave Shaw (left) and Rob Pabst (right)
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_043
field crew
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_044
2018 veg PSP crew: David Shaw, Principal Investigator, OSU; Bryan Sipe, field crew member, OSU; Rob Pabst, project coordinator, OSU; David Bell, Research Forester, Pacific Northwest Research Station; Jessie Hild, field crew member, OSU; Amanda Brackett, field crew leader, OSU
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_045
a tagged tree in a sample plot
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_046
field crew members Amanda Brackett and Jessie Hild measuring DBH (diameter breast height)
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_047
field crew members Amanda Brackett and Jessie Hild measuring DBH (diameter breast height)
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_048
Rob Pabst, recording data in the field
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_049
Rob Pabst, recording data in the field
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_050
Jessie Hild, noting tree health
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_051
Jessie Hild, reading a tree tag
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_052
an old tree tag, perhaps one of the originals from the 1960s
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_053
an old tree tag, perhaps one of the originals from the 1960s
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_054
Amanda Brackett and an old western red cedar
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_055
Rob Pabst, recording data in the field
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_056
2018 veg PSP crew: David Shaw, Principal Investigator, OSU; David Bell, Research Forester, Pacific Northwest Research Station; Bryan Sipe, field crew member, OSU; Rob Pabst, project coordinator, OSU; Amanda Brackett, field crew leader, OSU; Jessie Hild, field crew member, OSU
Photographed by: Lina DiGregorio
Date: 7/26/18
Photo number: aed_057
Rob Pabst shares a map of the day's study site
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_058
details of a 1979 map of the study sit, with stems diagrammed and mapped by hand
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_059
Rob Pabst shares a map of the day's study site
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_060
details of a 1979 map of the study sit, with stems diagrammed and mapped by hand
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_061
details of a 1979 map of the study sit, with stems diagrammed and mapped by hand
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_062
details of a 1979 map of the study sit, with stems diagrammed and mapped by hand
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_063
Rob Pabst shares a map of the day's study site
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_064
details of a 1979 map of the study sit, with stems diagrammed and mapped by hand
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_065
the veg PSP crew prepares for field work. left to right: Jessie Hild, field crew member, OSU; Amanda Brackett, field crew leader, OSU; David Shaw, Principal Investigator, OSU; Bryan Sipe, field crew member, OSU; David Bell, Research Forester, Pacific Northwest Research Station
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_066
field data documents
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_067
gear for field work. Flagging, data sheets, and a hammer, to adjust tree tags in the field
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_068
forest canopy
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_069
2018 Pacific Northwest Permanent Sample Plot Program (PSP) crew. left to right: Bryan Sipe, field crew member, OSU; David Bell, Research Forester, Pacific Northwest Research Station; Amanda Brackett, field crew leader, OSU; Jessie Hild, field crew member, OSU; Rob Pabst, project coordinator, OSU; David Shaw, Principal Investigator, OSU
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_070
field crew heading toward the field site
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_071
field crew heading toward the field site
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_072
field crew heading toward the field site
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_073
David Bell, Research Forester, Pacific Northwest Research Station, USFS, shares a LIDAR image of canopy height in the day's field plot
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_074
forest canopy
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_075
Jessie Hild, Amanda Brackett, Brian Sipe review maps and images of the day's field site
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_076
David Bell, Research Forester, Pacific Northwest Research Station, USFS, shares a LIDAR image of canopy height in the day's field plot
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_077
forest canopy in an old-growth stand
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_078
Rob Pabst shares data on tree mortality
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_079
Lina DiGregorio, LTER Program Coordinator
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_080
David Bell (center), Research Forester, Pacific Northwest Research Station, USFS, shares a LIDAR image of canopy height in the day's field plot
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_081
old-growth forest stand
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_082
David Shaw measures tree diameter with a DBH tape
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_083
the field crew measures an old-growth tree
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_084
Jessie Hild and Amanda Brackett measure and record tree diameter of a large douglas fir tree
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_085
Jessie Hild and Amanda Brackett measure and record tree diameter of a large douglas fir tree
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_086
Rob Pabst records field data
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_087
Jessie Hild and Amanda Brackett measure and record tree diameter of a large douglas fir tree
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_088
Amanda Brackett
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_089
field crew of the Pacific Northwest Permanent Sample Plot Program (PSP)
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_090
forest rivulet at the Andrews Forest
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_091
Jessie Hild and Bryan Sipe measure DBH
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_092
Jessie Hild and Bryan Sipe measure DBH
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_093
measuring DBH (diameter breast height) with a DBH tape
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_094
a hammer, used to adjust tree tags in the field
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_095
field gear: a hammer to adjust tree tags in the field, vest and notebook, a DBH tape, and a hard hat
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_096
Jessie Hild measures DBH and assesses tree health
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_097
Amanda Brackett, field crew member, in the study plot
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_098
Bryan Sipe, field crew member, in the study plot
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_099
Dave Shaw shares signs of Armillaria root rot in a dead tree in the sample plot
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_100
signs of Armillaria root rot in a dead tree in the sample plot
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_101
Dave Shaw shares signs of Armillaria root rot in a dead tree in the sample plot
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_102
Dave Shaw shares signs of Armillaria root rot in a dead tree in the sample plot
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_103
Dave Shaw shares signs of Armillaria root rot in a dead tree in the sample plot
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_104
Dave Shaw shares signs of Armillaria root rot in a dead tree in the sample plot
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_105
field crew boots, and a cut away section of tree bark, exposing signs of armillaria root rot in a dead tree in the study site
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_106
signs of Armillaria root rot from a dead tree in the sample plot
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_107
Rob Pabst, project coordinator of the Pacific Northwest Permanent Sample Plot Program (PSP)
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_108
Rob Pabst, project coordinator of the Pacific Northwest Permanent Sample Plot Program (PSP)
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_109
a tagged tree in a sample plot of the Pacific Northwest Permanent Sample Plot Program (PSP)
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_110
Dave Bell (left) and Rob Pabst (right) record data on tree mortality
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_111
Dave Bell (left), Rob Pabst (right), and Amanda Brackett, record data on tree mortality
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_112
compass and map orientation
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_113
compass and map orientation
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_114
recording data in the field
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_115
a tagged tree
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_116
Bryan Sipe, field crew member, and a tagged tree
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_117
Mack Creek
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_118
Mack Creek
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_119
Rob Pabst (left) and Jessie Hild (right) stretch a DBH tape around a large western red cedar tree
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_120
A tagged tree in a vegetation study plot along Mack Creek
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_121
2018 field crew of the Pacific Northwest Permanent Sample Plot Program (PSP): David Shaw, Principal Investigator, OSU; Bryan Sipe, field crew member, OSU; Rob Pabst, project coordinator, OSU; David Bell, Research Forester, Pacific Northwest Research Station; Jessie Hild, field crew member, OSU; Amanda Brackett, field crew leader, OSU
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_122
field crew members Amanda Brackett and Jessie Hild measuring DBH (diameter breast height) of a large douglas fir tree
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_123
field crew members Amanda Brackett and Jessie Hild measuring DBH (diameter breast height) of a large douglas fir tree
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_124
field crew members Amanda Brackett and Jessie Hild measuring DBH (diameter breast height) of a large douglas fir tree
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_125
A detailed view of a DBH tape around a large douglas fir tree. Its diameter was 209 centimeters (82 inches)
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_126
Rob Pabst, project coordinator of the Pacific Northwest Permanent Sample Plot Program (PSP)
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_127
old growth forest near Mack Creek
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_128
Bryan Sipe, field crew member, navigates over large, downed trees
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_129
Bryan Sipe, field crew member, navigates over large, downed trees
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_130
Bryan Sipe, field crew member, navigates over large, downed trees
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_131
The field crew moves through a study plot, being careful to watch for wasp nests!
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_132
Jessie Hild treats a wasp sting
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_133
Mack Creek flume
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_134
Mack Creek flume
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_135
Mack Creek gage house
Photographed by: Ian Vorster
Date: 7/26/18
Photo number: aed_136