Field technician Jonathan Cowan in Watershed 1 after the Holiday Farm fire
Vegetation survey after wildfire 2021
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 in Watershed 1 following the Holiday Farm wildfire. Many permanent vegetation plots burned in the fire, so field crews had to relocate and stake corners before remeasuring remaining vegetation.
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_001
The vegetation field crew traverses the steep slope of Watershed 1
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_002
Field technician Lauren Dorsch in Watershed 1
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_003
Field technician Lauren Dorsch resurveys corner markers in permanent plots burned in wildfire
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_004
Reestablishing plot corners using a compass
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_005
Field technician Lillian Evergreen taps in new corner markers
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_006
Field crew on the steep slope of WS1 burned in the Holiday Farm fire
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_007
Burned area and regrowth WS1
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_008
Field crew re-establishes vegetation study plots that were burned on the steep slope of WS1
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_009
Field crew re-establishes vegetation study plots that were burned on the steep slope of WS1
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_010
Field technician Lauren Dorsch in Watershed 1
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_011
Plant stem diameter is measured using a caliper
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_012
When a tagged tree dies, the nail is hammered to the side
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_013
Field technician Lauren Dorsch measures the diameter of a tree
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_014
Field technician Lillian Evergreen measures the diameter of a burned and still live tree in the plot
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_015
burned and recovering hillside of WS1
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_016
burned and recovering hillside of WS1
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_017
burned and recovering hillside of WS1
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_018
burned and recovering hillside of WS1
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_019
Field technician Lauren Dorsch shows the data sheet used by the vegetation crew
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_020
Data sheet used by the vegetation crew
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_021
Field technician Lauren Dorsch shows the data sheet used by the vegetation crew
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_022
burned and recovering hillside of WS1
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_023
The vegetation field crew traverses the steep slope of Watershed 1
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_024
Tagged tree in area of WS1 burned by the Holiday Farm fire
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_025
Tagged tree in area of WS1 burned by the Holiday Farm fire
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_026
Data sheet used by the vegetation crew
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_027
Data sheet and plot marker in permanent vegetation plot of WS1
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_028
Field technician Jonathan Cowan in Watershed 1 after the Holiday Farm fire
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_029
The vegetation field crew on the steep, burned slope of Watershed 1
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_030
burned and recovering hillside of WS1
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_031
Streambed in WS1
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_032
Field technician Lauren Dorsch in Watershed 1
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_033
Field technician Lauren Dorsch in Watershed 1
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_034
Field crew in an unburned vegetation plot in WS1
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_035
Field crew remeasures vegetation in a permanent study plot
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_036
Field crew remeasures vegetation in a permanent study plot
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_037
Field crew remeasures vegetation in a permanent study plot
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_038
Field technician Lauren Dorsch measures tree diameter
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_039
Field technician Lauren Dorsch measures tree diameter
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_040
Field crew remeasures vegetation in a permanent study plot
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_041
Field technician Lillian Evergreen uses a caliper to measure stem diameter
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_042
Field technician Lillian Evergreen records data on vegetation
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_043
Field equipment
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_044
Field technician Lillian Evergreen records data on vegetation
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_045
Field technician Lauren Dorsch records data on vegetation
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_046
Field crew takes note of species type and vigor of plants in the study plots
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_047
Field crew takes note of species type and vigor of plants in the study plots
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_048
Field technician Lillian Evergreen records data on vegetation
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_049
Field equipment that measures temperature and air movement
Photographed by: Lina DiGregorio
Date: 8/19/21
Photo number: AFA_050