Articles
The Optirrig model for the generation, analysis and optimization of irrigation scenarios: rationale and scopes
Article number
1373_5
Pages
25 – 34
Language
English
Abstract
The chronicle of irrigation decisions and constraints controls the necessary plot-scale crop production, at the risk of affecting regional-scale resource availability and competing usages.
Preserving this fragile equilibrium certainly demands the establishment of adaptive irrigation strategies, to be decided from the fine temporal dynamics of soil reserve fulfilment by rain.
The classical irrigation optimization issue is to produce more than a target yield, with as little irrigation as possible, seeking the maximal benefit.
Now there is a clear incentive toward so-called deficit irrigation but its viability requires a carefully-dimensioned financial reward to compensate production losses.
Whatever the assigned objectives and variables of interest, Optirrig allows to evaluate the merits, drawbacks and relevance of irrigation logics and strategies then to generate new, context-dependant and alternative scenarios.
The model relies on a parsimonious description of soil water budget, plant growth, properties and biomass production to rather place emphasis on plot-scale water management.
Preserving this fragile equilibrium certainly demands the establishment of adaptive irrigation strategies, to be decided from the fine temporal dynamics of soil reserve fulfilment by rain.
The classical irrigation optimization issue is to produce more than a target yield, with as little irrigation as possible, seeking the maximal benefit.
Now there is a clear incentive toward so-called deficit irrigation but its viability requires a carefully-dimensioned financial reward to compensate production losses.
Whatever the assigned objectives and variables of interest, Optirrig allows to evaluate the merits, drawbacks and relevance of irrigation logics and strategies then to generate new, context-dependant and alternative scenarios.
The model relies on a parsimonious description of soil water budget, plant growth, properties and biomass production to rather place emphasis on plot-scale water management.
Authors
B. Cheviron, M. Lo, J. Catel, M. Delmas, Y. Elamri, K. Akakpo, I.-A. Ramos-Fuentes, J.-D. Dominguez-Bohorquez, M. Garcia de Cezar, Y. Razavi-Ebrahimi, A. Degenne, R. Chenevat, J.C. Mailhol
Keywords
irrigation efficiency, irrigation models, water scarcity
Groups involved
- Division Plant-Environment Interactions in Field Systems
- Division Temperate Tree Fruits
- Division Temperate Tree Nuts
- Division Precision Horticulture and Engineering
- Division Vegetables, Roots and Tubers
- Division Ornamental Plants
- Division Tropical and Subtropical Fruit and Nuts
- Division Vine and Berry Fruits
- Division Greenhouse and Indoor Production Horticulture
- Division Landscape and Urban Horticulture
- Commission Agroecology and Organic Farming Systems
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