Lets Move Beyond Outdated Merchantability Standards

1
Lets Move Beyond Outdated Merchantability
Standards
4.0 inches d.o.b.
Total Stem Volume/Biomass
Merchantable portion
Saw-log portion
1-foot stump
2
National cull deduction options for net
cubic-foot volume (VOLCFNET) of the merchantable
portion of live trees 5.0 diameter and larger

• Associated national cull variables
• Rotten cull
• Missing cull
• Broken-top cull

4.0 inches d.o.b.

• Options for use on non-broken top trees
• Gross cubic-foot volume of the merchantable
• portion minus deductions for (rottenmissing)

• Options for use on broken top trees
• Gross cubic-foot volume of the merchantable
  portion minus deductions
• for (rottenmissingbroken-top)

Cubic merchantable portion

• Computations by tree component
• VOLCFNETmerch. stem

3
National cull deduction options for net
cubic-foot volume (VOLCFNET) of the merchantable
portion of dead trees 5.0 diameter and larger

• Associated national cull variables
• Rotten cull
• Missing cull
• Broken-top cull

4.0 inches d.o.b.

• Options for use on non-broken top trees
• Gross cubic-foot volume of the merchantable
• portion minus deductions for (rottenmissing)

• Options for use on broken top trees
• Gross cubic-foot volume of the merchantable
  portion minus deductions
• for (rottenmissingbroken-top)

Cubic merchantable portion

• Computations by tree component
• VOLCFNETmerch. stem

Note Recommendation to collect actual and total
length for all 5.0 dead trees.
4
National cull deduction options for net above
ground biomass (DRYBIOTNET) of live trees 5.0
diameter and larger

• Associated national cull variables
• Rotten cull
• Missing cull
• Broken-top cull

• Options for use on non-broken top trees merch.
  stem
• Gross above ground biomass
• minus deductions for (missingrot factor)

• Options for use on broken top trees merch. stem
• Gross above ground biomass minus deductions for
  (missingbroken-toprot factor)

• Options for use on top and branches
• If no broken-top cull then top/branches biomass
  has no deductions
• If broken-top cull (below 4 top) top/branches
  biomass is reduced relative to broken-top cull
• (by species?)
• If broken-top cull (above 4 top) top/branches
  biomass reduced proportional to amount of missing
  volume of main stem

Main Stem And branches

• Option for use on stump
• Gross stump biomass net stump biomass

• Computations by tree component
• DRYBIOTNETmerch. stemtops/branchesstump

5
National cull deduction options for net above
ground biomass (DRYBIOTNET) of dead trees 5.0
diameter and larger

• Associated national cull variables
• Rotten cull
• Missing cull
• Broken-top cull

• Options for use on non-broken top trees merch.
  stem
• Gross above ground biomass
• minus deductions for (missingrot factor)

• Options for use on broken top trees merch. stem
• Gross above ground biomass minus deductions for
  (missingbroken-toprot factor)

• Options for use on top and branches
• If no broken-top cull then top/branches biomass
  has no deductions
• If broken-top cull (below 4 top) top/branches
  biomass is reduced relative to broken-top cull
• (by species?)
• If broken-top cull (above 4 top) top/branches
  biomass reduced proportional to amount of missing
  volume of main stem

Main Stem And branches

• Option for use on stump
• Gross stump biomass net stump biomass

• Computations by tree component
• DRYBIOTNETmerch. stemtops/branchesstump

Assumptions All units collect actual and total
length for all 5.0 dead trees and do all three
cull variables for 5.0-inch dead trees.
6
National cull deduction options for net above
ground biomass (DRYBIOTNET) of live trees 1.0
4.9 diameter

• Associated national cull variables
• Broken-top cull

• Options for use on non-broken top trees main
  stem
• Gross above ground biomass equals net
• above ground biomass
• Assumption The majority of cull in saplings
• is from missing tops and thus wouldnt warrant
  culling
• saplings for rot or missing

• Options for use on broken top trees main stem
• Gross above ground biomass of main stem minus
  deductions for broken-top

Main Stem And branches

• Options for use on broken top trees branches
• Branches biomass is reduced by differing amounts
  of broken-top cull (by species?)

• Computations by component for broken-top
  saplings
• DRYBIOTNETmain stembranches

Assumptions All units collect actual and total
length for all live saplings.
7
National cull deduction options for net above
ground biomass (DRYBIOTNET) of dead trees 1.0
4.9 diameter

• Associated national cull variables
• Broken-top cull

• Options for use on non-broken top trees
• Gross above ground biomass equals net
• above ground biomass
• Assumption The majority of cull in saplings
• is from missing tops and thus wouldnt warrant
  culling
• saplings for rot or missing

• Options for use on broken top trees main stem
• Gross above ground biomass of main stem minus
  deductions for broken-top

Main Stem And branches

• Options for use on broken top trees branches
• Branches biomass is reduced by differing amounts
  of broken-top cull (by species?)

• Computations by tree component for broken-top
  saplings
• DRYBIOTNETmain stembranches

Assumptions Add dead saplings back to inventory
and all units collect actual and total
length for all dead saplings.
8
National cull deduction options for net above
ground biomass (DRYBIOMNET) of the merchantable
portion of live trees 5.0 diameter and larger

• Associated national cull variables
• Rotten cull
• Missing cull
• Broken-top cull

4.0 inches d.o.b.

• Options for use on non-broken top trees
• Gross above ground biomass of the merchantable
• portion minus deductions for (missingrot factor)

• Options for use on broken top trees
• Gross above ground biomass of the merchantable
  portion minus deductions for (missingrot
  factorbroken-top)

Merchantable portion

• Computations by tree component
• DRYBIOMNETmerch. stem

9
National cull deduction options for net above
ground biomass (DRYBIOMNET) of the merchantable
portion of dead trees 5.0 diameter and larger

• Associated national cull variables
• Rotten cull
• Missing cull
• Broken-top cull

4.0 inches d.o.b.

• Options for use on non-broken top trees
• Gross above ground biomass of the merchantable
• portion minus deductions for (missingrot factor)

• Options for use on broken top trees
• Gross above ground biomass of the merchantable
  portion minus deductions for (missingrot
  factorbroken-top)

Merchantable portion

• Computations by tree component
• DRYBIOMNETmerch. stem

Assumptions All units collect actual and total
length for all 5.0 dead trees and do all three
cull variables for 5.0-inch dead trees.
10
National cull deduction options for net
cubic-foot volume (VOLCFSTEMNET) of the main stem
of live timber trees 5.0 diameter and larger

• Associated national cull variables
• Rotten cull
• Missing cull
• Broken-top cull

• Options for use on non-broken top trees
• Gross cubic-foot volume of the main stem
• minus deductions for (rottenmissing)

• Options for use on broken top trees (broken below
  merch top)
• Gross cubic-foot volume of the main stem minus
  deductions for (rottenmissingbroken-top)

Main Stem

• Options for use on broken top trees (broken above
  merch top)
• Gross cubic-foot volume of the main stem minus
  deductions for (rottenmissingtop missing above
  merch?)

• Computations by tree component
• VOCFSTEMNETmerch. stemtopstump

• Assumptions Cull in the stump is considered
  negligible and the missing top above merch. can
  be calculated from actual/total height
  measurements.

11
National cull deduction options for net
cubic-foot volume (VOLCFSTEMNET) of the main stem
of dead timber trees 5.0 diameter and larger

• Associated national cull variables
• Rotten cull
• Missing cull
• Broken-top cull

• Options for use on non-broken top trees
• Gross cubic-foot volume of the main stem
• minus deductions for (rottenmissing)

• Options for use on broken top trees (broken below
  merch top)
• Gross cubic-foot volume of the main stem minus
  deductions for (rottenmissingbroken-top)

Main Stem

• Options for use on broken top trees (broken above
  merch top)
• Gross cubic-foot volume of the main stem minus
  deductions for (rottenmissingtop missing above
  merch?)

• Computations by tree component
• VOCFSTEMNETmerch. stemtopstump

• Assumptions Cull in the stump is considered
  negligible and the missing top above merch.
  can be calculated from actual/total height
  measurements, and all units collect actual and
  total length for all 5.0 dead trees and do all
  three cull variables for 5.0-inch dead trees.

12
National cull deduction options for net
cubic-foot volume (VOLCFSTEMNET) of the main stem
of live timber trees 1.0 4.9 diameter

• Associated national cull variables
• Broken-top cull

• Options for use on non-broken top trees main
  stem
• Gross cubic-foot volume of equal
• to net cubic-foot volume
• Assumption The majority of cull in saplings
• is from missing tops and thus wouldnt warrant
  culling
• saplings for rot or missing

• Options for use on broken top trees main stem
• Gross cubic-foot volume minus deductions for
  broken-top

Main Stem

• Computations by tree component
• VOLCFSTEMNETmain stem

Assumptions All units collect actual and total
length for all live saplings.
13
National cull deduction options for net
cubic-foot volume (VOLCFSTEMNET) of the main stem
of dead timber trees 1.0 4.9 diameter

• Associated national cull variables
• Broken-top cull

• Options for use on non-broken top trees main
  stem
• Gross cubic-foot volume equal to
• net cubic-foot volume
• Assumption The majority of cull in saplings
• is from missing tops and thus wouldnt warrant
  culling
• saplings for rot or missing

• Options for use on broken top trees main stem
• Gross cubic-foot volume minus deductions for
  broken-top

Main Stem

• Computations by tree component
• VOLCFSTEMNETmain stem

Assumptions Add dead saplings back to inventory
and all units collect actual and total
length for all dead saplings.
14
National cull deduction options for net above
ground biomass (DRYBIOTSTEMNET) of the main stem
of live timber trees 5.0 diameter and larger

• Associated national cull variables
• Rotten cull
• Missing cull
• Broken-top cull

• Options for use on non-broken top trees merch.
  stem
• Gross above ground biomass
• minus deductions for (missingrot factor)

• Options for use on broken top trees merch. stem
• Gross above ground biomass minus deductions for
  (missingbroken-toprot factor)

• Options for use on top
• If no broken-top cull then top biomass is based
  on top volume
• If broken-top cull (below 4 top) top biomass is
  reduced by amount of broken-top cull (by
  species?)
• If broken-top cull (above 4 top) top biomass
  reduced proportional to amount of missing volume
  of main stem

Main Stem

• Option for use on stump
• Gross stump biomass net stump biomass

• Computations by tree component
• DRYBIOTSTEMNETmerch. stemtopstump

• Assumptions Cull in the stump is considered
  negligible and the missing top above merch. can
  be calculated from actual/total height
  measurements.

15
National cull deduction options for net above
ground biomass (DRYBIOTSTEMNET) of the main stem
of dead timber trees 5.0 diameter and larger

• Associated national cull variables
• Rotten cull
• Missing cull
• Broken-top cull

• Options for use on non-broken top trees merch.
  stem
• Gross above ground biomass
• minus deductions for (missingrot factor)

• Options for use on broken top trees merch. stem
• Gross above ground biomass minus deductions for
  (missingbroken-toprot factor)

• Options for use on top
• If no broken-top cull then top biomass is based
  on top volume
• If broken-top cull (below 4 top) top biomass is
  reduced by amount of broken-top cull (by
  species?)
• If broken-top cull (above 4 top) top biomass
  reduced proportional to amount of missing volume
  of main stem

Main Stem

• Option for use on stump
• Gross stump biomass net stump biomass

• Computations by tree component
• DRYBIOTSTEMNETmerch. stemtopstump

• Assumptions Cull in the stump is considered
  negligible and the missing top above merch. can
  be calculated from actual/total height
  measurements, and all units collect actual and
  total length for all 5.0 dead trees and do all
  three cull variables for 5.0-inch dead trees.

16
National cull deduction options for net above
ground biomass (DRYBIOTSTEMNET) of the main stem
of live timber trees 1.0 4.9 diameter

• Associated national cull variables
• Broken-top cull

• Options for use on non-broken top trees main
  stem
• Gross above ground biomass of equals net above
  ground biomass
• Assumption The majority of cull in saplings
• is from missing tops and thus wouldnt warrant
  culling
• saplings for rot or missing

Main Stem

• Options for use on broken top trees main stem
• Gross above ground biomass minus deductions for
  broken-top

• Computations by tree component
• DRYBIOTSTEMNETmain stem

Assumptions All units collect actual and total
length for all live saplings.
17
National cull deduction options for net above
ground biomass (DRYBIOTSTEMNET) of the main stem
of dead timber trees 1.0 4.9 diameter

• Associated national cull variables
• Broken-top cull

• Options for use on non-broken top trees main
  stem
• Gross above ground biomass equals
• net above ground biomass
• Assumption The majority of cull in saplings
• is from missing tops and thus wouldnt warrant
  culling
• saplings for rot or missing

Main Stem

• Options for use on broken top trees main stem
• Gross above ground biomass minus deductions for
  broken-top

• Computations by tree component
• DRYBIOTSTEMNETmain stem

Assumptions Add dead saplings to inventory and
all units collect actual and total length for
dead saplings.
18
National cull deduction options for net
board-foot volume (VOLBFNET) of the saw-log
portion of a growing stock timber (excluding cull
species) tree of sawtimber size

• Associated national cull variable
• Total Board-foot cull

4.0 inches d.o.b.

• Options for use on all growing stock trees
• Gross board-foot volume of the saw-log portion
  minus deductions for total board foot cull

• Computations by tree component
• VOLBFNETmerch. sawlog

7.0-inch top d.o.b. for softwoods and 9.0-inch
top d.o.b. for hardwoods sawtimber, or potential
for poletimber cubic-foot
Saw-log portion
1-foot stump