| Titre : |
Analyse et optimisation de l'efficience eau-énergie du mini pivot artisanal |
| Type de document : |
texte imprimé |
| Auteurs : |
Imene Medjadji, Auteur ; Haithem Messaoud, Auteur ; Abdelkrim Ould Rebai, Auteur |
| Editeur : |
Tipaza [Algérie] : Centre universitaire Morsli Abdellah - Tipaza- |
| Année de publication : |
2024/2025 |
| Importance : |
p.58 |
| Présentation : |
couv. en noir et blanc ., ill., fig.,tabl. |
| Format : |
30 cm |
| Accompagnement : |
CD |
| Note générale : |
Bibliographie: p47-53. |
| Langues : |
Français (fre) |
| Catégories : |
Agronomie
|
| Mots-clés : |
artisanal mini-pivot irrigation efficiency water distribution remote sensing Tipaza. |
| Index. décimale : |
630.16 |
| Résumé : |
Agrarian dynamics in Algeria have been accompanied by the adoption and adaptation of imported models, particularly for irrigation. Little is known about the efficiency of these local irrigation systems, which is a limiting factor in terms of controlling and improving water use at plot level, despite the considerable transfer of technology. The aim of the present work is to study the efficiency of the artisanal mini-pivot, installed in a new context of use in Tipaza, with a view to proposing improvements. To this end, an approach was adopted combining three scales of analysis, namely (i) analysis of the evolution of CUD water distribution under mini-pivot following an experimental protocol (ii) monitoring, modelling and mapping, by means of sampling and remote sensing, of the H% soil moisture status (iii) mapping of water use efficiency at plot scale. Our results show that the mini-pivot has a CUD, below the recommended threshold, which decreases under the effect of wind and pressure, i.e. a rate between 57% and 71% for the different trials. As a result, an asymmetry in moisture evolution is apparent, depending not only on CUD but also on soil characteristics. Combining the results of the two components UD and H% by means of mapping also reveals low irrigation efficiency (10% - 50%), at plot level, with sub-zones ranging from average to good (75% - 94%). It is therefore recommended to adapt a busage according to the characteristics of the terrain and to include other characteristic soil parameters for further analysis. This work represents a contribution to the field of irrigation and is part of a global context of water control and saving in the face of very frequent water stress situations. |
Analyse et optimisation de l'efficience eau-énergie du mini pivot artisanal [texte imprimé] / Imene Medjadji, Auteur ; Haithem Messaoud, Auteur ; Abdelkrim Ould Rebai, Auteur . - Tipaza [Algérie] : Centre universitaire Morsli Abdellah - Tipaza-, 2024/2025 . - p.58 : couv. en noir et blanc ., ill., fig.,tabl. ; 30 cm + CD. Bibliographie: p47-53. Langues : Français ( fre)
| Catégories : |
Agronomie
|
| Mots-clés : |
artisanal mini-pivot irrigation efficiency water distribution remote sensing Tipaza. |
| Index. décimale : |
630.16 |
| Résumé : |
Agrarian dynamics in Algeria have been accompanied by the adoption and adaptation of imported models, particularly for irrigation. Little is known about the efficiency of these local irrigation systems, which is a limiting factor in terms of controlling and improving water use at plot level, despite the considerable transfer of technology. The aim of the present work is to study the efficiency of the artisanal mini-pivot, installed in a new context of use in Tipaza, with a view to proposing improvements. To this end, an approach was adopted combining three scales of analysis, namely (i) analysis of the evolution of CUD water distribution under mini-pivot following an experimental protocol (ii) monitoring, modelling and mapping, by means of sampling and remote sensing, of the H% soil moisture status (iii) mapping of water use efficiency at plot scale. Our results show that the mini-pivot has a CUD, below the recommended threshold, which decreases under the effect of wind and pressure, i.e. a rate between 57% and 71% for the different trials. As a result, an asymmetry in moisture evolution is apparent, depending not only on CUD but also on soil characteristics. Combining the results of the two components UD and H% by means of mapping also reveals low irrigation efficiency (10% - 50%), at plot level, with sub-zones ranging from average to good (75% - 94%). It is therefore recommended to adapt a busage according to the characteristics of the terrain and to include other characteristic soil parameters for further analysis. This work represents a contribution to the field of irrigation and is part of a global context of water control and saving in the face of very frequent water stress situations. |
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