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Tutorial: Irrigation Performance Indicators and Water Productivity

Conditions d’achèvement

5. Compute Indicators Using Indicators Calculator Tab

5.7. Yield

We'll calculate now the Yield.

1. In the Indicator Selection dropdown, select Yield.

Formula: Y = HI * AOT * fc * (TBP / (1 - MC))
    • Parameters for Oued Hellal:
      • MC: 0.15 (Moisture content, dry matter over fresh biomass)
      • fc: 1.46 (Light use efficiency correction factor)
      • AOT: 0.85 (Above ground over total biomass production ratio)
      • HI: 0.48 (Harvest Index)
    • Note: These parameters are specific to the type of crops that are grown in the study area. 
2. In the Formula Parameters, select the Total Biomass Production raster (WH_TBP_2022_10_01).

3. Enter the above parameters and name the output file WH_Yield_2022_10_01.

4. Click Calculate Indicator. The output raster will be saved and loaded into QGIS.





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