When the treatment is actually applied, the rest of the parameters specified in the treatment file are apparent in the Editor. When a treatment is applied, products are also derived!
TRACK TREATMENT LABEL FUTURE CURVE ... 23 CC product.Area.managed.SW 0 32 23 CC product.Seral.mature 0 154 23 CC product.Seral.old 0 155 23 CC product.Seral.regen 0 30 23 CC product.Seral.young 0 156 23 CC product.Treated.CC 0 32 23 CC product.Visual.disturb 0 30 23 CC product.Yield.managed.Conif 0 157 23 CC product.Yield.managed.Decid 0 158 ...
The products.csv
file is similar to the
features.csv
file except for the addition
of the TREATMENT field.
Individual blocks reference products by track LABEL and treatment type.
If Track.23
was eligible for several
different management treatments, the number of records in the
treatment file would increase to represent all the product
attributes that would result from all the different treatments.
Products, like features, are displayed as attributes in the Block Table. The value of the LABEL field represents attribute names that may be common to a number of tracks. The curves that represent the specific product attributes may be unique to each Track. Products differ slightly from features in that they only have values during the period when the treatment is applied, whereas features represent what is actually present on the ground and therefore will have values in all planning periods.
Product attribute values are computed in the same way as feature attribute values. Values are interpolated from the product curve associated with the Track and are multiplied by the managed area of the block in question (unmanaged areas are never treated).
Figure 180. Product attribute curves that apply to the
CC
treatment on block
27
(taken from
Track.23
).
![]() (a)
|
![]() (b)
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Let's look at some specific curves for our sample block 27. Curves 158 and 157 represent the yields of deciduous species and conifer species, respectively, that would result from a clearcut harvest treatment.
The marked inflection points of the curves are the values
found in the curves.csv
file.
Notice the shape of curve 157
(product.Yield.managed.Conif
) compared to
the shape of curve 152
(feature.Yield.managed.Conif
). Feature and
product curves can be the same shape with the same or different
set of points, or they can have different shapes to represent the
outcome of a management treatment (ie. residual trees left in
white pine selection harvest). In this particular instance, they
are the same shape.
To see what products are produced from the
CC
treatment in block 27
,
we can manually apply the management treatment in the Treatment
Editor. Notice that the green lines representing managed features
change as a result of the harvest treatment. The red lines
represent the unmanaged portion of the block and are unaffected
by the harvest treatment (see the section called “Treatments”).
After the CC
treatment is applied to the
managed area in block 27
, the products derived
from the treatment are listed in the line chart. Notice that the
list of products matches the records in the
products.csv
file for
Track.23
CC
treatment.
Notice how the curves change after the treatment, as the
managed Track is reset to an offset (age) of 0 as was specified
in the treatment file. The track remains
Track.23
for the managed area of block
27
after the CC
treatment.
The values obtained from the yield curves are multiplied by
the managed area of block 27
(9.63ha) to
obtain product attribute values for the planning period in which
the treatment occurred.