|
 |
 |
|
|
 |
|
Plot Layouts |
|
|
|
Forest Plot Layout
This is the suggested default layout
for the forest plot. This plot includes the herbaceous
layer (on the outside 50m transects), burn severity (measured
either on the fuel lines or on the outside 50m transects)
and brush density (taken on the inside portion of the
herb transects) data collected in the brush plot and adds
the following measurements: forest fuel data along the
4 lines that begin at the midline (0P-50P); and collect
tree information (including scorch and char) in three
size classes (seedling (0-<2.5 cm), pole-size (2.5-15
cm), and overstory (>15 cm) within the entire plot,
or in portions of the entire plot (depending on their
average density). We usually modify the entire plot setup
following a period of pilot sampling. |
|
 |
|
Brush Plot Layout
This is the suggested default layout
for a brush plot. This plot includes the herbaceous layer
and the burn severity data collected in the grassland
transect, and adds the measurement of brush density in
the belt shown (30 meters long by a variable width), which
we place either on the upslope side (to avoid trampling),
or the right side of the transect (when facing 30 m) in
flat terrain (to avoid bias); the width of the brush belt
is usually modified following a period of pilot sampling.
This modification is based upon the average density of
shrub spp. We use three age classes for shrub species:
Seedling (a shrub that is too immature to flower), Mature
(a shrub that is able to produce flowers and seeds that
year), and Resprout (a shrub that has resprouted after
being top-killed by fire or some other disturbance). |
|
 |
|
Grass
Transect Layout
This is the suggested default
layout for a grass transect. We measure the herbaceous
layer on the first 30 meters of the transect using the
point-intercept method. We gather burn severity data either
every 5 meters or every 3 decimeters.
NPS/USGS
National Burn Severity Mapping Project
The Joint NPS-USGS National Burn Severity Mapping Project
addresses the need to quantify fire effects over large, often-remote
regions and long time intervals.
 |
|
|
|
|
|
|
|
