Assessment of satellite-based water requirements for a drip-irrigated apple orchard in Mediterranean agroclimatic conditions
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View abstract on PubMed
Summary
This summary is machine-generated.Accurate evapotranspiration (ETa) and crop coefficient (Kc) estimation is vital for apple orchard irrigation. The METRIC model, calibrated for specific orchard conditions, showed good accuracy, with errors under 10%.
Area Of Science
- Agricultural Science
- Remote Sensing
- Hydrology
Background
- Optimizing irrigation in water-scarce regions requires accurate evapotranspiration (ETa) and crop coefficient (Kc) assessment.
- Satellite-based models are promising but need validation for sparse canopies like apple orchards.
Purpose Of The Study
- To investigate the spatial and temporal dynamics of ETa and Kc in a 'Pink Lady' apple orchard.
- To validate the METRIC model for estimating ETa and Kc in this specific agricultural setting.
Main Methods
- Employed the METRIC model with calibrated sub-models for LAI, Zom, and G.
- Estimated ETa and Kc over three growing seasons in a drip-irrigated apple orchard.
- Validated model estimates against field-scale Eddy Covariance data.
Main Results
- The calibrated METRIC model estimated ETa and Kc with errors less than 10%.
- The model demonstrated good performance in capturing the dynamics of water use in the apple orchard.
Conclusions
- The calibrated METRIC model is a reliable tool for irrigation management in apple orchards.
- This approach supports efficient water use in Mediterranean agricultural systems.
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