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| INSTRUCTIONS |
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| 1. Use the "Volume Sheets" to obtain
aggregate class data. |
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| 2. Enter aggregate data in the green cells
(species, #trees, #sawlogs, #pulpsticks, #plots) |
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| 3. Use the calculated averages to look up the
"factors" |
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| 4. Enter the appropriate factor in the green
cells. |
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| 5. Volumes and BA will be calculated (red
text). |
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| 6. This spreadsheet can be used to calculate
figures for each species, or for the entire stand. |
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| 7. If a printer is attached, you can print
this spreadsheet by selected the cells below and printing just that
selection. |
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(Click "File",
then "print", then the "selection" button, then
"OK" |
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| 8. |
Once stand data are
entered, you can model changes by "harvesting" trees (tables in the
blue section). |
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| For the Excel spreadsheet, click here. |
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Enter number of trees you
would like to cut in the ORANGE column |
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VOLUME AND BASAL AREA
CALCULATIONS BASED ON FIELD DATA |
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to see what effect that
will have on the total stand volumes and basal area. |
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CAUTION - Do NOT change
any other cell!! |
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Species: |
all species |
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Enter data in green cells
ONLY |
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Note: Right-clicking a highlighted cell(s), and
selecting "clear contents" is the |
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best way to remove
numbers in the orange column. |
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Step 1: Fill in green cells in table below using |
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PERCENT OF EACH SPECIES BY
TREE COUNT, |
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HARVEST CALCULATOR |
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species names and sums from
field tally sheets |
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SAWTIMBER, AND PULPWOOD |
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Existing stand data |
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Post-harvest stand data |
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Species |
#Trees |
#Sawlogs |
#Pulpsticks |
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Species |
#Trees |
#Sawlogs |
#Pulpsticks |
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Species |
#Trees |
#Sawlogs |
#Pulpsticks |
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#Cut |
#Left |
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Current Stand Description |
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Board Feet Per Acre: |
#DIV/0! |
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0 |
#DIV/0! |
#DIV/0! |
#DIV/0! |
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0 |
0 |
0 |
0 |
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0 |
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Board Feet Per Acre: |
###### |
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Cords per Acre: |
#DIV/0! |
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0 |
#DIV/0! |
#DIV/0! |
#DIV/0! |
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0 |
0 |
0 |
0 |
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5 |
-5 |
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Cords per Acre: |
###### |
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Stand Basal Area: |
#DIV/0! |
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0 |
#DIV/0! |
#DIV/0! |
#DIV/0! |
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0 |
0 |
0 |
0 |
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1 |
-1 |
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Stand Basal Area: |
###### |
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(square feet / acre) |
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0 |
#DIV/0! |
#DIV/0! |
#DIV/0! |
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0 |
0 |
0 |
0 |
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10 |
-10 |
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0 |
#DIV/0! |
#DIV/0! |
#DIV/0! |
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0 |
0 |
0 |
0 |
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Post-harvest Description |
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0 |
#DIV/0! |
#DIV/0! |
#DIV/0! |
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0 |
0 |
0 |
0 |
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10 |
-10 |
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New Tree Count |
-32 |
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SAWLOG FACTORS |
375 if trees avg. 1.0 logs |
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0 |
#DIV/0! |
#DIV/0! |
#DIV/0! |
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0 |
0 |
0 |
0 |
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0 |
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New Sawlog Count |
271 |
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Step 2: |
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375 if trees avg. 1.5 logs |
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0 |
#DIV/0! |
#DIV/0! |
#DIV/0! |
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0 |
0 |
0 |
0 |
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0 |
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New Pulpstick Count |
0 |
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Total of all |
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(#logs x 300) |
375 if trees avg. 2.0 logs |
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0 |
#DIV/0! |
#DIV/0! |
#DIV/0! |
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0 |
0 |
0 |
0 |
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3 |
-3 |
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Board Feet Per Acre: |
###### |
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plots, all |
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#plots |
330 if trees avg. 2.5 logs |
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0 |
#DIV/0! |
#DIV/0! |
#DIV/0! |
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0 |
0 |
0 |
0 |
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3 |
-3 |
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Cords per Acre: |
###### |
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students. |
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International Rule |
330 if trees avg. 3.0 logs |
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0 |
#DIV/0! |
#DIV/0! |
#DIV/0! |
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0 |
0 |
0 |
0 |
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0 |
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Stand Basal Area: |
###### |
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330 if trees avg. 3.5 logs |
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0 |
#DIV/0! |
#DIV/0! |
#DIV/0! |
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0 |
0 |
0 |
0 |
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0 |
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313 if trees avg. 4.0 logs |
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0 |
#DIV/0! |
#DIV/0! |
#DIV/0! |
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0 |
0 |
0 |
0 |
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0 |
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Total |
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313 if trees avg. 4.5 logs |
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0 |
#DIV/0! |
#DIV/0! |
#DIV/0! |
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0 |
0 |
0 |
0 |
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0 |
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#Plots |
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300 if trees avg. 5.0 logs |
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0 |
#DIV/0! |
#DIV/0! |
#DIV/0! |
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0 |
0 |
0 |
0 |
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0 |
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Sums |
0 |
0 |
0 |
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300 if trees avg. 5.5 logs |
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Sums |
#DIV/0! |
#DIV/0! |
#DIV/0! |
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Sums |
0 |
0 |
0 |
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32 |
-32 |
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290 if trees avg. 6.0 logs |
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Avg. # sawlogs |
#DIV/0! |
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PULPWOOD FACTORS |
0.9 if trees avg. 1 sticks |
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Avg. # Pulpsticks |
#DIV/0! |
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0.7 if trees avg. 2 sticks |
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Cords/acre= |
(#sticks x 0.65) |
0.65 if trees avg. 3 sticks |
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Edits by Joshua Shields 2022 |
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#plots |
0.6 if trees avg. 4+ sticks |
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Board Foot Factor |
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Source: Reference Handbook for Foresters, USDA
NA-FR-15. |
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Cord Factor |
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Note: Basal area is used to calculate volumes,
not dbh. |
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Step 3: Use calculated sawlog & pulpstick
averages to select appropriate sawlog & pulpwood factor. |
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Enter these factors into green
cells above. Read final calculated
volumes & basal area in red text (above). |
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