SARRA-H Crop Model______________figfigfig______________Cirad, UMR TETIS, C.Baron , 2013_fig
Système d'Analyse Régionale des Risques Agroclimatologiques Version H (SARRA-H;System of Agroclimatological Regional Risk Analysis)

Translation: Peter Biggins ............................................................................................................................................................

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fig SARRA-H simulation scenarios

Simulation scenarios are an important aspect of the proposed model and environment. When the model is installed, a set of examples, described below, is provided so that you can adapt them to your data and studies, by copying them.

They enable the model to be used in a whole series of situations making it possible to:

Calibrations:

Some calibration examples are proposed where LAI, aboveground biomass and leaves and yield dynamics are compared with data measured on-station. Two important points need to be highlighted: i) there are a few parameters that vary depending on the species and depending on the varieties for the same species, ii) the values of the parameters that vary may be directly or indirectly measured in the field (sowing date trials, biomass measurements, LAI, etc.) or be found in the literature.

Scenarios:

DemSemisPrecoce................................................ DemRecolteFinSaisonPluie

figfig

DemIrrigAutoSenMil...................................DemSenegalMilSounaIrr

figfig
(Automatic irrigation computation to be compared with an on-station trial with supplemental irrigation actually applied to prevent any water stress)

DemAltSRIshiara872m...DemAltSRMitungu_1016m

fig

DemLat12...........................................................DemLat15 vs Mil

figfig

DemLat12CCT+6....DemLat15CCT+6

fig

figWater balance: it estimates evapotranspiration and the water stress index; the soil comprises three reservoirs: superficial, deep, and a dynamic root reservoir

figCarbon balance: it is based on the big leaf concept, it converts solar energy into sugar under water stress, then distributes it within the biomasses

figPhenology: it manages changes in phenological stages (emergence, vegetative stage, flowering, ripening) and the associated processes (germination, juvenile mortality, biomass distribution modalities, etc.).

ico Management of multiple simulation scenarios (interface or automatic activation)

figSimulation scenarios

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