Articles | Volume 18, issue 12
Research article
10 Dec 2014
Research article |  | 10 Dec 2014

Evaluation of root water uptake in the ISBA-A-gs land surface model using agricultural yield statistics over France

N. Canal, J.-C. Calvet, B. Decharme, D. Carrer, S. Lafont, and G. Pigeon


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Short summary
Regional French agricultural yield statistics are used to benchmark root water uptake representations in the ISBA-A-gs model. Key model parameters governing the inter-annual variability of the simulated biomass are retrieved. A complex multi-layer soil hydrology model does not outperform a simple bulk root-zone reservoir approach. This could be explained by missing processes/information in the model such as hydraulic redistribution and detailed soil properties.