Publications des scientifiques de l'IRD

Belaqziz S., Mangiarotti Sylvain, Le Page M., Khabba S., Er-Raki S., Agouti T., Drapeau Laurent, Kharrou M. H., El Adnani M., Jarlan Lionel. (2014). Irrigation scheduling of a classical gravity network based on the Covariance Matrix Adaptation - Evolutionary Strategy algorithm. Computers and Electronics in Agriculture, 102, p. 64-72. ISSN 0168-1699.

Titre du document
Irrigation scheduling of a classical gravity network based on the Covariance Matrix Adaptation - Evolutionary Strategy algorithm
Année de publication
2014
Type de document
Article référencé dans le Web of Science WOS:000334010400007
Auteurs
Belaqziz S., Mangiarotti Sylvain, Le Page M., Khabba S., Er-Raki S., Agouti T., Drapeau Laurent, Kharrou M. H., El Adnani M., Jarlan Lionel
Source
Computers and Electronics in Agriculture, 2014, 102, p. 64-72 ISSN 0168-1699
Irrigation scheduling is an important task that significantly influences water conservation and crop production. For most gravity irrigation networks located in semi-arid areas, irrigation scheduling is based on available water regardless of crops water needs. The objective of this study is to propose a new approach for optimizing irrigation scheduling taking into account crops water demand, based on the Covariance Matrix Adaptation - Evolution Strategy (CMA-ES) evolutionary strategy algorithm. The objective function, that must be minimized, of this optimization problem is defined as the sum of two terms. The first term is the Irrigation Priority Index (IPI) which characterizes the degree of imbalance between water stress and irrigation timing of the plot. The second one takes into account the various constraints that relate to canals capacity, tasks timing, geographical distances and canal flow rate variations. The approach was applied to an agricultural sector located at 40 km from the city of Marrakech (Morocco). Optimal schedule for the third irrigation, of the 2011-2012 agricultural season, is provided and the comparisons between schedules before and after optimization are made. The obtained results demonstrate that such approach allows reducing the proportion of late irrigated plots (from 22% to 8%) and increasing the proportion of plots irrigated at an appropriate time (from 28% to 40%). We conclude that this approach can be considered as an efficient tool for planning irrigation schedules by considering crops water needs.
Plan de classement
Sciences fondamentales / Techniques d'analyse et de recherche [020] ; Sciences du monde végétal [076] ; Informatique [122]
Description Géographique
MAROC
Localisation
Fonds IRD [F B010061916]
Identifiant IRD
fdi:010061916
Contact
  • Coordonnées :
    IST / IRD Ile-de-France
    32 avenue Henri Varagnat
    93140 Bondy Cedex
    France
    Horizon Pleins textes
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