This document discusses ForestValue, a forest estate linear programming model for forest valuation, strategic planning, and timber supply analysis. ForestValue uses the FOLPI formulation and can be run on Mac OS X, Linux, Unix, and Windows. It allows forest data to be imported and optimization results and reports to be exported in various formats like CSV. The mathematical equations and constraints are clearly written in the AMPL/MathProg scripts, unlike some other tools. Various case studies and dashboard visualizations developed using R graphics are also presented and linked.

2. RStudio
(R
package
IDE)
and
R
graphics
(i.e.
ggplot2)

3. Dashboard
Layout
using
R
Graphics
Grid
(i.e.
library(grid))

4. ForestValue
(FOLPI-­‐based
formulaFon)
-­‐
Forest
ValuaFon,
Strategic
Planning,
Forest
Estate
Modelling
and
Woodflow
(i.e.
Timber
Supply
Analysis
(TSA))
Model
ForestValue
is
a
Forest
Estate
Linear
Programming
(LP)
Model
implemented
in
mathema9cal
programming
language
for
forest
valua9on,
strategic
forest
management
and
planning,
forest
economics,
9mber
/
wood
supply
analysis,
carbon
forestry
stock
modelling,
biomass
supply
analysis,
agroforestry
(biofuels
and
(latex
-­‐
(rubber
planta9on)
supply
analysis,
agriculture
(yield
supply
analysis),
carbon
sequestra9on
analysis,
etc.
ForestValue
is
mathema9cal
programming
language
NZ
FOLPI-­‐based
formula9on
implemented
using
GLPK/
MathProg.
It
is
new
improved
FOLPI
(O.
Garcia,
B.
Manley
and
S.
Papps)
with
enhancement
(e.g.
log
alloca9on
to
mills
as
module,
various
CSV
reports,
database,
etc.).
MathProg
script
is
compa9ble
to
AMPL.
ForestValue
is
alterna9ve
to
RemsoR
Woodstock
without
the
price
tag
of
$30,000
or
AMPL/CPLEX
license
($12,000).
FOLPI
data
can
be
easily
migrated
into
CSV
data
format
or
databases
(e.g.
SQLite,
Spa9alite,
MS
Access,
MS
SQL,
MySQL,
Oracle,
PostGIS,
dbf,
etc.)
and
use
as
an
input
for
ForestValue.
MathProg
Tables
in
ForestValue
can
use
ODBC
(Windows)
and
iODBC
(Mac
OS
X,
Linux
and
Unix).
ForestValue
uses
FOLPI
model
structure
/
formula9on
(i.e.
Model
III)
and
its
data
structure.
Op9misa9on
results
can
be
outpu^ed
into
CSV
format
or
databases.
MathProg
is
also
used
to
data
mine
results
to
produce
CSV
reports
which
can
be
easily
graph
in
Excel.
Unlike
Woodstock,
all
the
mathema9cal
equa9ons
(i.e.
objec9ve
func9on
and
constraints)
are
clearly
wri^en
in
AMPL
/
MathProg
scripts.
It
is
modular,
constraints
and
reports
can
be
added
and
removed.
There
is
no
"blackboxing"
in
GLPK/MathProg
modelling.
ForestValue
runs
in
Mac
OS
X,
Linux,
Unix
&
Windows.
ForestValue
scripts
(objec9ve
func9on,
constraints,
reports,
etc.)
are
presented.
Various
case
studies,
silviculture
regimes
and
dashboard
visual
reports
are
also
discussed
&
presented.
(Please
visit
the
URL
below
to
view
ForestValue
scripts,
case
studies,
CSV
reports,
visual
dashboard
reports,
etc.)
(Note:
Screenshots
were
done
before
I
use
R
graphics
for
Data
(Result)
Visualiza9on).
h^ps://picasaweb.google.com/116847891529748214201/
ForestValueFOLPIBasedFormula9onForestValua9onForestEstateModellingAndWoodflowModel
h^ps://plus.google.com/photos/116847891529748214201/albums/5786882768665990657?banner=pwa