Description
Return sampleDryMass*targetArea/sampleArea*weight.
Agroforestry observations combine sampled areas, cohort counts, source uncertainty and caller-supplied response assumptions. A sample expansion or conditional yield term can be computed independently of sampling representativeness or a validated tree-crop interaction. Unknown source flags must retain their reporting meaning.
Return sampleDryMass*targetArea/sampleArea*weight.
When to use this tool
Use Woody Biomass Sample Expansion when checking the stated cohort, sample-expansion or assumed-response convention.
How to use the tool and how it works
- Enter sampleDryMass, sampleArea, targetArea, suppliedInclusionWeight. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read expandedMass. Use the output convention below.
Require nonnegative sample dry mass, target area and supplied inclusion weight, with positive sample area. Return sampleDryMass*targetArea/sampleArea*weight.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| sampleDryMass | Sample Dry Mass | Required. Finite number; minimum 0. |
| sampleArea | Sample Area | Required. Finite number; strictly above 0. |
| targetArea | Target Area | Required. Finite number; minimum 0. |
| suppliedInclusionWeight | Supplied Inclusion Weight | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| expandedMass | Expanded Mass | Required. Finite number. |
{
"input": {
"sampleDryMass": 20,
"sampleArea": 5,
"targetArea": 100,
"suppliedInclusionWeight": 0.5
},
"output": {
"expandedMass": 200
}
}Limitations and assumptions
- Expansion assumes the supplied sample and weight represent the target; no sampling design or uncertainty is estimated.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Use representative verified samples and an appropriate complete ecological/statistical model for abundance, yield response and uncertainty.
References
Similar or alternative tools
- Agroforestry Carbon Stock One Cohort
Return trees*dryMassEach*carbonFraction*(1+belowgroundFactor).
- Farm Demo Partial Plot Harvest Factor
Return observedMass*totalArea/harvestedArea*moistureCorrection.