TwoDog Forest Inventory Processor
- Database has two primary functions:
1)
Summarize TwoDog inventory data
2) Output
TwoDog inventory data into a FVS import database
- Usage:
1) Open
TwoDog > Select 'Reports' > Select 'Calculate'
2) Open
TwoDog Summary
Database_Version 2.mdb
- For
general basic data summaries, double-click on the 'Summary by'
Queries
- To
output files needed for FVS database import, double-click on
the 'FVS_StandInit' and 'FVS_TreeInit' Queries.
Answer 'Yes' to prompted questions
This process writes data processed with
TwoDog into a
database which can be read by FVS (see below)
FVS Database Import Files (
download link)
- Files used to import MS Access database data
into FVS
- Unzipped files must be placed in the C:\Fvsdata
directory
Files:
FVS_Import_FOR480. mdb, Database_Import_FOR480.loc
Terrestrial Habitat Associations on the Daniel Boone NF (
pdf)
Snag Classification Systems
Volume and Biomass Determination
and Tree
Grading
A
Simple Timber Cruising Template (from forestry.about.com)
Forest
Inventory Definitions (USDA Forest Service - FIA): A-H
I-P
Q-Z
Textbook
References
- Kangas, A., and M. Maltamo. 2006. Forest Inventory:
Methodology and Applications (Managing Forest Ecosystems). Springer.
362 p.
- West, P.W. 2003. Tree and Forest Measurement. Springer. 179
p.
- Husch, B., T.W. Beers, and J.A. Kershaw. 2002. Forest
Mensuration. Wiley. 456 p.
- Avery, T.E., and H.E. Burkhart. 2001. Forest Measurements.
McGraw Hill.
- Johnson, E.W. 2000. Forest Sampling Desk Reference. CRC
Press, Boca Raton, FL. 1008 p.
- Shiver, B.D., and B.E. Borders. 1995. Sampling Techniques
for Forest Resource Inventory. Wiley, New York, NY. 368 p.
Desktop v
ESRI
ArcGIS Support – http://support.esri.com/index.cfm?fa=homepage.homepage
ESRI
ArcScripts – http://arcscripts.esri.com/
sion 9 Introductory Tuto
KY
Geological Survey Geospatial Data
Library – http://www.uky.edu/KGS/gis/kgs_gis.htm
Kentucky
Geography Network –
http://kygeonet.ky.gov/
Files on Forestry 3
network drive: \\Forestry3\I\FOR480\480 GIS Data
Projections:
- State Plane
Coordinate
System, NAD83, Kentucky
Single Zone (U.S.
Survey Foot)
- Geographic
Coordinate System: North
American Datum of 1983
Project Properties Ecological
Classification
- Section: Northern Cumberland Plateau
- Subsection: Kinniconick and Licking Knobs
Cleland, D.T.; Freeouf, J.A.; Keys,
J.E., Jr.; Nowacki, G.J.; Carpenter, C; McNab, W.H. 2007. Ecological
Subregions: Sections and Subsections of the Conterminous United States
[1:3,500,000] [CD-ROM]. Sloan, A.M., cartog. Gen. Tech. Report WO-76.
Washington, DC, U.S. Department of Agriculture, Forest Service.
Introductory Tutorials - These tutorials provide and excellent introduction to ArcMap. They are a must read!
ArcMap Tutorial from ESRI
ArcMap 9.x
Introductory Tutorial - University of Arkansas
Tip #1 - Creating
and Editing Shapefiles (points, lines, and polygons)
Tip #2 - Editing
Data Attribute Table
Edit existing field(s)
- Select View
→ Toolbars → Editor
- In editor toolbar, Select
Editor
→ Start Editing
- In layer window, right-click on desired layer, select Open
Attribute Table
- Then click on cell you want to edit and type in the
information
- To save your edits, in
editor toolbar, Select Editor
→ Save Edits
- Then in editor toolbar, Select
Editor
→ Stop Editing
Create new field(s)
- In layer window, right-click on desired layer, select Open
Attribute Table
- In the attribute table window, select Options →
Add Field...
- Enter field Name
- Select data type (i.e. text, number, ect)
- Edit field properties if needed
- Press OK
- To add text or data to new field follow directions outlined
above for Edit existing
field(s)
Tip #3 -
Transfering ArcMap
9.x shapefiles to and from Garmin
GPS Units
Download waypoints from GPS:
- Plug sync cable
into the computer then into GPS unit.
- Open DNR Garmin Software
- Select: GPS
→ Set Port → Port 5 (Port 1 not when using USB adaptor)
- Select: GPS → Open
Port
- Select: GPS
→ Units →
Feet
- Select: File
→ Set Projection →
Select ESRI → Datums/Projections
→ NAD_1983_StatePlane_Kentucky_FIPS_1600_Feet
- Press OK
- Select: Waypoint
or Track → Download
- Highlight points
or tracks you want to download
- Select: File
→ Save to → Select Save as type “ArcView Shapefile
(Projected) (*.shp)”
→ Enter File Name →
Press Save
Upload waypoints to GPS:
- Plug sync cable
into the computer then into GPS unit.
- Open DNR Garmin Software
- Select: GPS
→ Set Port → Port 5 (Port 1 not when using USB adaptor)
- Select: GPS → Open
Port
- Select: GPS
→ Units →
Feet
- Select: File
Load From
File…
- Select shapefile and choose
open.
- Change Identity or Comment
fields using data from shapefile and choose OK.
- Choose OK in pop-up window,
points should appear in DNR data table.
- Select: Waypoint
Upload
Tip #4
-
Generating Forest Inventory Sampling Grids using Hawth's
Analysis Tools for ArcGIS
Instructions (powerpoint presentation):
- Select View
→ Toolbars → HawthsTools
- Open “HawthsTools” from
Toolbar
- Select Sampling
Tools
- Chose either
“Generate Random Points” or
“Generate Regular Points”
- For
“Generate Random Points”
- Select layer
from pulldown menu
- If desired,
check “Prevent points from occurring in the polygons of this
layer” and select that layer using pulldown
menu.
- If desired,
check “Enforce minimum distance between points” and
enter that distance. Distance
is in the same units as the layer projection.
For the case of the State Plane Coordinate System,
NAD83, Kentucky Single Zone (U.S. Survey Foot) projection distance is
in feet
- Use toggle buttions to select type of
sampling design and enter the number of randiom
points desired. For
“Stratified sampling designs”
you must select a “Polygon unique ID field” from pulldown menu.
This is not necessary for “Unstratified sampling
design”
- Enter output Shapefile name
- Press OK
- For
“Generate Regular Points”
- Select
“Extent Same as this layer” from pulldown menu
- Enter
“Point Spacing”.
Spacing is in the same units as the layer projection. For the case of the State
Plane Coordinate System, NAD83, Kentucky Single Zone (U.S. Survey Foot)
projection we are using the point spacing is in feet
- Select
“Alignment of alternating rows” using toggle
buttons.
- Enter New Shapefile name
- Press OK
For
additional help on Hawth's
Analysis Tools for ArcGIS
please refer to this
website: http://www.spatialecology.com/htools/tooldesc.php
Tip #5 - Shapefile Data Management: Clip,
Buffer, Intersect, Union, Dissolve, Append, and, Merge Tools
Clip
-
This process creates a new layer by using a polygon layer (or selected
polygons in that layer) as a cookie cutter on a point, line, or polygon
theme. The output layer will only contain data from the layer you're
clipping. The layer used as a cookie cutter is only used to
define the clipping boundary. You might use the boundary of your
study area to clip a layer of roads or clip the
streams which extend the
boundary of the forest. You could also use this tool to clip
the sampling points shapefile generated by Hawth's Tools so points
are limited to the extent of the property or stand boundry.
- Open Arc Toolbox
by pressing the Toolbox Icon
- In Toolbox Window,
select Analysis Tools
- Then, select
Extract → Clip
- In Clip window,
select input features, clip features, and define output dataset name
- Press OK
Buffer
- Creates buffer polygons to a
specified distance around the Input
Features. An optional dissolve can be performed to remove overlapping
buffers. Negative
distances can be used when buffering polygon features, to
create buffers on the inside of the polygon features. Using a negative
value will shrink the output polygon feature by the distance specified.
Examples of what this tool can do include: buffers around
roads or
points, stream side buffers, or negative buffer around a property/stand
boundry to ensure that sampling points (generated by Hawth's Tools) are inside the
boundry by a specified distance.
- Open Arc Toolbox
by pressing the Toolbox Icon
- In Toolbox Window,
select Analysis Tools
- Then, select
Proximity → Buffer
- In Clip window,
select input features, define output feature, and define distance (+ or
-)
- Press OK
Intersect
- Computes a geometric intersection of the Input
Features. Features or
portions of features which overlap in all layers and/or feature classes
will be written to the Output Feature Class.
This process is similar to clipping a layer, except it preserves only
those features falling within the spatial extent common to both layers.
The features of the input layer are intersected or sliced by the
intersect layer. The attribute data from both layers are
included
in the new layer's attribute table. You could use a layer of flood
zones to intersect a layer of land parcels.
- Open Arc Toolbox
by pressing the Toolbox Icon
- In Toolbox Window,
select Analysis Tools
- Then, select
Overlay → Intersect
- In Intersect
window, select input datasets and define output dataset name
- Press OK
Union
-
Union creates a new layer by combining two polygon layers.
The
new layer has data and shapes from both layers, including
their
intersection. In fact, union differs from intersect only by the fact
that all the features of both layers are included in the
resultant
layer, including those features that did not overlap.
- Open Arc Toolbox
by pressing the Toolbox Icon
- In Toolbox Window,
select Analysis Tools
- Then, select
Overlay → Union
- In Union window,
select input datasets and define output dataset name
- Press OK
Dissolve
- Aggregates features based on specified
attributes.
- Open Arc Toolbox
by pressing the Toolbox Icon
- In Toolbox Window,
select Data Management Tools
- Then, select
Generalization → Dissolve
- In Dissolve
window, select input datasets and define output dataset name
- Press OK
Append
- Appends multiple input dataset into an already
existing target dataset.
Input datasets can be point, line or polygon feature classes, tables,
rasters or raster catalogs.
- Open Arc Toolbox
by pressing the Toolbox Icon
- In Toolbox Window,
select Data Management Tools
- Then, select
General → Append
- In Append window,
select input datasets and define target dataset name
- Press OK
Merge
- Combines input features from multiple input sources (of
the same data type) into a single, new, output feature class. The input
data sources may be point, line, or polygon feature classes or tables.
- Open Arc Toolbox
by pressing the Toolbox Icon
- In Toolbox Window,
select Data Management Tools
- Then, select
General → Merge
- In Merge window,
select input datasets and define output dataset name
- Press OK
Tip #6 - Adding a
new or updated AREA field (i.e. calculate acres of polygon units) in
the
attribute table using Hawth's
Analysis Tools for ArcGIS
Instructions:
- Select View
→ Toolbars → HawthsTools
- Open “HawthsTools” from
Toolbar
- Select
“Table Tools” → “Add
Area/Perimeter Fields to Table”
- Select:
“Polygon feature layer” from the pulldown menu
- Because of the
projection we are using is State Plane Coordinate System, NAD83,
Kentucky Single Zone (U.S. Survey Foot) the output will be in ft2. To calculate acres, check
the Convert Area Units checkbox and enter 0.000022957 in the box. This conversion factor is
the number of acres in a square foot (1/43,560 = 0.000022957).
- Press
“OK”
For
additional help on Hawth's
Analysis Tools for ArcGIS
please refer to this
website: http://www.spatialecology.com/htools/tooldesc.php
Tip #7 – Joining
forest inventory data with ArcGIS
shapefiles.
Works the same for
points or polygons.
1. Make
sure the forest inventory data in the Excel table and the ArcMap
layer (point, polygon) have a common identification field that
describes the
same features. For
example, a field
named “Plot Number” in the excel table and in the
GIS layer attribute table.
2. In
Excel, highlight the range of data you want to use in ArcGis
3. Then
Select File → Save As, Enter File Name, and select
“DBF 4 (DBASE IV) from
the “Save as type” pulldown
menu
4. Press
Save
5. Press
OK to the first popup message and Yes
to the second.
6. To
Join the saved table to an ArcGIS
layer attribute table, Open ArcGIS
and add the DBF 4 file to the project by using the Add Data toolbar
button

a. Right
click on the layer to which you want to join an external table and
point the
cursor to 'Joins and Relates' and then from the drop
down menubar select 'join...',
a dialog box will appear. Open
the source table (external database or table) and the
destination tables .
b. Choose
what do you want to join to this
layer (in this case select
'join attributes from a table').
c. Choose
the common field in the destination table(the
one you
wish to join information to) from the drop down menubar.
d. Choose
the table to join to this layer from the drop down menu bar.
e. Choose
the field in
the table (which you intend to join
to the destination table or the source table) to base the join on from
the drop
down menu bar.
f. Click
OK.
g. Open
the destination table to see the join based on the common field
selected in the
destination and source table in the above steps.
- You
can also remove the Join at a later time
- Right click on
the layer to which a join has been made and point the cursor to 'Joins
and Relates' and then from the drop down menubar
select 'Remove join(s)' and finally click on the table you want to
disjoin or select 'Remove All Joins' to remove all the joins.