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Let’s Move Beyond Outdated Merchantability Standards

Let’s Move Beyond Outdated Merchantability Standards. 4.0 inches d.o.b. Total Stem Volume/Biomass. Merchantable portion. Saw-log portion. 1-foot stump.

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Let’s Move Beyond Outdated Merchantability Standards

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  1. Let’s Move Beyond Outdated Merchantability Standards 4.0 inches d.o.b. Total Stem Volume/Biomass Merchantableportion Saw-log portion 1-foot stump

  2. National defect deduction options for net cubic-foot volume (VOLCFNET) of the merchantable portion of live trees 5.0” diameter and larger • Associated national defect variables: • Rotten defect • Missing defect • Broken-top defect 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 (rotten+missing) • Options for use on broken top trees: • Gross cubic-foot volume of the merchantable portion minus deductions • for (rotten+missing+broken-top) Cubic merchantableportion

  3. National defect deduction options for net cubic-foot volume (VOLCFNET) of the merchantable portion of dead trees 5.0” diameter and larger • Associated national defect variables: • Rotten defect • Missing defect • Broken-top defect 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 (rotten+missing) • Options for use on broken top trees: • Gross cubic-foot volume of the merchantable portion minus deductions • for (rotten+missing+broken-top) Cubic merchantableportion Note: Some units collect actual and total length for all 5.0”+ dead trees.

  4. National defect deduction options for net above ground biomass (DRYBIOTNET) of live trees 5.0” diameter and larger • Associated national defect variables: • Missing defect • Broken-top defect • Options for use on non-broken top trees: • Gross above ground biomass • minus deductions for missing • Options for use on broken top trees: • Gross above ground biomass minus deductions for (missing+broken-top) Main Stem And branches • Potential problems: • Without a separate national missing defect variable for the stump this would not truly be net biomass • How much branch biomass is associated with differing amounts of broken tops

  5. National defect deduction options for net above ground biomass (DRYBIOTNET) of dead trees 5.0” diameter and larger • Associated national defect variables: • Missing defect • Broken-top defect • Options for use on non-broken top trees: • Gross above ground biomass • minus deductions for missing • Options for use on broken top trees: • Gross above ground biomass minus deductions for (missing+broken-top) Main Stem And branches • Potential problem: • Without a separate national missing defect variable for the stump this would not truly be net biomass • How much branch biomass is associated with differing amounts of broken tops and • deteriorating dead trees (This could have bearing on the Salvable dead proposal and possible use of decay class?) Note: Some units collect actual and total length for all 5.0”+ dead trees.

  6. National defect deduction options for net above ground biomass (DRYBIOTNET) of live trees 1.0 – 4.9” diameter • Associated national defect variables: • Missing defect • Broken-top defect • Options for use on non-broken top trees: • Gross above ground biomass equals • net above ground biomass • Assumption: I would expect the majority of defect in saplings • to be from missing tops and thus wouldn’t warrant defecting • saplings for rot or missing • Options for use on broken top trees: • Gross above ground biomass minus deductions for broken-top Main Stem And branches • Potential problems: • Missing and rotten in the stump for saplings is probably negligible • How much branch biomass is associated with differing amounts of broken tops Note: Some units currently collect actual and total length for all live saplings.

  7. National defect deduction options for net above ground biomass (DRYBIOTNET) of dead trees 1.0 – 4.9” diameter • Associated national defect variables: • Broken-top defect • Options for use on non-broken top trees: • Gross above ground biomass equals • net above ground biomass • Assumption: I would expect the majority of defect in saplings • to be from missing tops and thus wouldn’t warrant defecting • saplings for rot or missing • Options for use on broken top trees: • Gross above ground biomass minus deductions for broken-top Main Stem And branches • Potential problems: • Missing and rotten in the stump for saplings is probably negligible • How much branch biomass is associated with differing amounts of broken tops Note: Current change proposal plan for adding dead saplings includes height but does not yet stipulate what kinds—need to consider this.

  8. National defect deduction options for net above ground biomass (DRYBIOMNET) of the merchantable portion of live trees 5.0” diameter and larger • Associated national defect variables: • Missing defect • Broken-top defect 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 missing • Options for use on broken top trees: • Gross above ground biomass of the merchantable portion minus deductions for (missing+broken-top) Merchantableportion

  9. National defect deduction options for net above ground biomass (DRYBIOMNET) of the merchantable portion of dead trees 5.0” diameter and larger • Associated national defect variables: • Missing defect • Broken-top defect 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 missing • Options for use on broken top trees: • Gross above ground biomass of the merchantable portion minus deductions for (missing+broken-top) Merchantableportion Note: Some units collect actual and total length for all 5.0”+ dead trees.

  10. National defect deduction options for net cubic-foot volume (VOLCFSTEMNET) of the main stem of livetimber trees 5.0” diameter and larger • Associated national defect variables: • Rotten defect • Missing defect • Broken-top defect • Options for use on non-broken top trees: • Gross cubic-foot volume of the main stem • minus deductions for (rotten+missing) • Options for use on broken top trees: • Gross cubic-foot volume of the main stem minus deductions for (rotten+missing+broken-top) Main Stem • Potential problem: • Without separate national rotten and missing defect variables for the stump this would not truly be net volume

  11. National defect deduction options for net cubic-foot volume (VOLCFSTEMNET) of the main stem of dead timber trees 5.0” diameter and larger • Associated national defect variables: • Rotten defect • Missing defect • Broken-top defect • Options for use on non-broken top trees: • Gross cubic-foot volume of the main stem • minus deductions for (rotten+missing) • Options for use on broken top trees: • Gross cubic-foot volume of the main stem minus deductions for (rotten+missing+broken-top) Main Stem • Potential problem: • Without separate national rotten and missing defect variables for the stump this would not truly be net volume Note: Some units collect actual and total length for all 5.0”+ dead trees.

  12. National defect deduction options for net cubic-foot volume (VOLCFSTEMNET) of the main stem of live timber trees 1.0 – 4.9” diameter • Associated national defect variables: • Broken-top defect • Options for use on non-broken top trees: • Gross cubic-foot volume of main stem equal • to net cubic-foot volume • Assumption: I would expect the majority of defect in saplings • to be from missing tops and thus wouldn’t warrant defecting • saplings for rot or missing • Options for use on broken top trees: • Gross cubic-foot volume of the main stem minus deductions for broken-top Main Stem Note: Some units currently collect actual and total length for all live saplings.

  13. National defect deduction options for net cubic-foot volume (VOLCFSTEMNET) of the main stem of deadtimber trees 1.0 – 4.9” diameter • Associated national defect variables: • Broken-top defect • Options for use on non-broken top trees: • Gross cubic-foot volume of main stem equal • to net cubic-foot volume • Assumption: I would expect the majority of defect in saplings • to be from missing tops and thus wouldn’t warrant defecting • saplings for rot or missing • Options for use on broken top trees: • Gross cubic-foot volume of the main stem minus deductions for broken-top Main Stem Note: Current change proposal plan for adding dead saplings includes height but does not yet stipulate what kinds—need to consider this.

  14. National defect deduction options for net above ground biomass (DRYBIOTSTEMNET) of the main stem of live timber trees 5.0” diameter and larger • Associated national defect variables: • Missing defect • Broken-top defect • Options for use on non-broken top trees: • Gross above ground biomass of the main stem • minus deductions for missing • Options for use on broken top trees: • Gross above ground biomass of the main stem minus deductions for (missing+broken-top) Main Stem • Potential problem: • Without a separate national missing defect variable for the stump this would not truly be net biomass

  15. National defect deduction options for net above ground biomass (DRYBIOTSTEMNET) of the main stem of dead timber trees 5.0” diameter and larger • Associated national defect variables: • Missing defect • Broken-top defect • Options for use on non-broken top trees: • Gross above ground biomass of the main stem • minus deductions for missing • Options for use on broken top trees: • Gross above ground biomass of the main stem minus deductions for (missing+broken-top) Main Stem • Potential problem: • Without a separate national missing defect variable for the stump this would not truly be net biomass Note: Some units collect actual and total length for all 5.0”+ dead trees.

  16. National defect deduction options for net above ground biomass (DRYBIOTSTEMNET) of the main stem of live timber trees 1.0 – 4.9” diameter • Associated national defect variables: • Broken-top defect • Options for use on non-broken top trees: • Gross above ground biomass equals • net above ground biomass • Assumption: I would expect the majority of defect in saplings • to be from missing tops and thus wouldn’t warrant defecting • saplings for rot or missing Main Stem • Options for use on broken top trees: • Gross above ground biomass minus deductions for broken-top Note: Some units currently collect actual and total length for all live saplings.

  17. National defect deduction options for net above ground biomass (DRYBIOTSTEMNET) of the main stem of dead timber trees 1.0 – 4.9” diameter • Associated national defect variables: • Broken-top defect • Options for use on non-broken top trees: • Gross above ground biomass equals • net above ground biomass • Assumption: I would expect the majority of defect in saplings • to be from missing tops and thus wouldn’t warrant defecting • saplings for rot or missing • Options for use on broken top trees: • Gross above ground biomass minus deductions for broken-top Main Stem Note: Current change proposal plan for adding dead saplings includes height but does not yet stipulate what kinds—need to consider this.

  18. National defect deduction options for net board-foot volume (VOLBFNET) of the saw-log portion of a growing stocktimber tree of sawtimber size • Associated national defect variable: • Total Board-foot defect 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 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

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