Crop Tree Release Spacing RD-Ratio Tool
Audit actual crop/neighbor crown-edge clearances and center-spacing-to-summed-radii ratio, not stand relative spacing or release prescription. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Description
Crown spacing can be compared with the sum of independently measured crown radii.
Crown spacing can be compared with the sum of independently measured crown radii.1
A separation-to-radius ratio describes pairwise geometry and does not calculate a stand relative-density index. Use this tool to calculate crop tree release spacing rd-ratio tool from the supplied measurements and assumptions.
When to use Crop Tree Release Spacing RD-Ratio Tool
Use this tool to calculate crop tree release spacing rd-ratio tool from the supplied measurements and assumptions. Establish the species/site, survey protocol, units, sampled area or exposure, and the independently chosen reference or model.
How to use Crop Tree Release Spacing RD-Ratio Tool and understand its results
- Establish the species/site, survey protocol, units, sampled area or exposure, and the independently chosen reference or model.
- Enter observedCropTreeNeighborDistancesM, callerMatchedOpenGrowthCrownRadiiM, observedNeighborCrownRadiiM, using the field meanings and rules below, then run the tool.
- Read signedCrownReleaseClearancesM, crownSpacingDiameterRatios. Interpret the fields using their units, signs and evidence conventions below.
- If input validation fails, correct the reported field and run again. Before applying the result, check reference scope, model assumptions and any missing evidence or placeholder values.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| observedCropTreeNeighborDistancesM | Observed crop tree neighbor distances m | list of number | Required |
| callerMatchedOpenGrowthCrownRadiiM | Caller matched open growth crown radii m | list of number | Required |
| observedNeighborCrownRadiiM | Observed neighbor crown radii m | list of number | Required |
Enter nonempty aligned positive stem separation distances and positive crown radii for both trees. Add each pair of radii, subtract that sum from separation for signed clearance and divide separation by the radius sum for the ratio. Overlapping crowns give negative clearance; no boundary geometry or stand density is inferred.
sumRadii=r1+r2; clearance=distance−sumRadii; ratio=distance/sumRadii Use the exact units, boundary rules, ordering and missing-evidence conventions above.
| Output field | Meaning | Value type |
|---|---|---|
| signedCrownReleaseClearancesM | Signed Crown Release Clearances M; follow the units, sign, ordering and evidence convention stated above | list of number |
| crownSpacingDiameterRatios | Crown Spacing Diameter Ratios; follow the units, sign, ordering and evidence convention stated above | list of number |
{
"input": {
"observedCropTreeNeighborDistancesM": [
2,
3
],
"callerMatchedOpenGrowthCrownRadiiM": [
1,
2
],
"observedNeighborCrownRadiiM": [
1,
1
]
},
"output": {
"signedCrownReleaseClearancesM": [
0,
0
],
"crownSpacingDiameterRatios": [
1,
1
]
}
}Limitations and assumptions
A separation-to-radius ratio describes pairwise geometry and does not calculate a stand relative-density index. Interpretation depends on the units, sampling scope and exact model described above.
All listed fields require explicit values. Unexpected fields, incorrect types, nonfinite numbers and sparse evidence arrays fail validation; the specific bounds and alignment requirements are stated above. Extremely large inputs or outputs can also be rejected. An input error is distinct from a successful result reporting false, no matches or missing evidence.
Alternative or Complementary methods
Use Pruning Knot Index Live Crown Limit Checker for this related task: Pruning review can compare knot size with bole diameter and retained crown fraction with a supplied limit.
Use Clearcut Opening Width Windthrow Checker when its separate inputs and assumptions fit the question: A clearcut-width-to-tree-height ratio compares opening geometry with a supplied review screen.
References
-
Crop Tree Release Spacing RD-Ratio Tool — tool.io
Similar or alternative tools
- Pruning Knot Index Live Crown Limit Checker
Pruning review can compare knot size with bole diameter and retained crown fraction with a supplied limit.
- Clearcut Opening Width Windthrow Checker
A clearcut-width-to-tree-height ratio compares opening geometry with a supplied review screen.