Description
Calculate withdrawalProductivity=edibleOutput/withdrawnWater and consumptiveProductivity=edibleOutput/(withdrawnWater-returnedWater).
A farm or garden budget depends on a common area, quantity, observation period, and system boundary. Recovery, exclusions, overlap, and allocation change how a share is calculated. Supplied accounting or geometry terms remain separate from measured crop performance and verified environmental outcomes.
Calculate withdrawalProductivity=edibleOutput/withdrawnWater and consumptiveProductivity=edibleOutput/(withdrawnWater-returnedWater).
When to use this tool
Use Farm Water Productivity One Output Term when you need a clearly bounded area, material, resource, energy, or allocation term for supplied garden or farm records.
How to use the tool and how it works
- Enter edibleOutput, withdrawnWater, returnedWater. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read withdrawalProductivity, consumptiveProductivity. Use the output convention below.
Calculate withdrawalProductivity=edibleOutput/withdrawnWater and consumptiveProductivity=edibleOutput/(withdrawnWater-returnedWater). Require nonnegative output and return water with withdrawal strictly greater than return.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| edibleOutput | Edible Output | Required. Finite number; minimum 0. |
| withdrawnWater | Withdrawn Water | Required. Finite number. |
| returnedWater | Returned Water | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| withdrawalProductivity | Withdrawal Productivity | Required. Finite number. |
| consumptiveProductivity | Consumptive Productivity | Required. Finite number. |
{
"input": {
"edibleOutput": 200,
"withdrawnWater": 100,
"returnedWater": 20
},
"output": {
"withdrawalProductivity": 2,
"consumptiveProductivity": 2.5
}
}Limitations and assumptions
- The denominators are gross withdrawal and supplied net withdrawal. Units and system boundaries must match; no crop yield, basin-level water saving, or broader environmental performance is inferred.
- The field tables state structural bounds; the mechanics also specify cross-field constraints. Malformed inputs and unsupported domains cause errors. A successful false flag, empty branch value, or zero placeholder has the meaning stated above and is distinct from an input error.
- 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. Signed zero is exported as zero.
Alternative or Complementary methods
Verify the system boundary, units, and source records before combining this term into a resource or environmental report. Physical design and crop-performance questions require appropriate measurements and a broader model.
References
Similar or alternative tools
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