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Watering and Irrigation

Xeriscape Water Savings Calculator

Xeriscape Water Savings requires one defined scenario. Express measured seasonal water reduction as a percentage. Use water reduction and previous seasonal use from the Xeriscape Water Savings record.

Enter values for seasonal water savings

Read each Xeriscape Water Savings field note before calculating seasonal water savings.

gal

Enter water reduction as a percentage from 0 to 100.

gal

Use the value that represents previous seasonal use.

Formula for seasonal water savings

seasonal water savings = water reduction ÷ previous seasonal use × 100

Xeriscape Water Savings compares Water reduction and Previous seasonal use and reports the relationship as a percentage.

Water reduction at 3,200 gal, previous seasonal use at 8,400 gal produces 38.10% in the demonstration case.

Input definitions for seasonal water savings

Prepare Water reduction and Previous seasonal use for Xeriscape Water Savings. Keep unrelated records separate. Net irrigation depth: Evapotranspiration Irrigation Need Calculator handles this follow-up.

  • Water reduction. Default in Xeriscape Water Savings: 3,200 gal.
  • Previous seasonal use. Default in Xeriscape Water Savings: 8,400 gal.

What Xeriscape Water Savings answers

Xeriscape Water Savings focuses on Seasonal water savings and combines Water reduction and Previous seasonal use.

Use seasonal water savings to express measured seasonal water reduction as a percentage, then inspect water reduction in the field. After this result, Rain Gauge Irrigation Credit Calculator can credit measured effective rainfall against a weekly water target.

Checking seasonal water savings in practice

Measure delivery at normal operating pressure and note the zone being tested. Nominal flow is not a substitute for a catch-can or timed-volume check.

Seasonal water savings: condition to verify

Compare seasons with similar weather or normalize for ET. Test daily water requirement separately in Plant Daily Water Requirement Calculator.

A zero Previous seasonal use leaves seasonal water savings undefined in Xeriscape Water Savings.

Reading seasonal water savings

The result panel emphasizes seasonal water savings. Check the input units before judging one scenario against another. The calculation for mulched water use remains in Mulch Irrigation Reduction Calculator.

Questions about Xeriscape Water Savings

How does “Compare seasons with similar weather or normalize for ET.” affect seasonal water savings?

It matters only through the measurements supplied to the formula. Confirm water reduction for the relevant area or period.

Can Previous seasonal use be zero in Xeriscape Water Savings?

In Xeriscape Water Savings, zero previous seasonal use makes seasonal water savings undefined.

Does Xeriscape Water Savings adjust itself as crop demand changes?

No. Recalculate seasonal water savings after meaningful changes in weather, canopy size, root depth, or irrigated area.