| Titre | Irrigation et maîtrise de l'eau sur un versant des Andes péruviennes | |
|---|---|---|
| Auteur | Philippe Rousseau, Henri Poupon, Dominique Hervé | |
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Revue | Etudes rurales |
| Numéro | no 115-116, 1989 Hydraulique | |
| Rubrique / Thématique | Génie rural et génie paysan. Sociétés rurales et techniques hydrauliques en Afrique Principes d'aménagement paysans. Comparaison |
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| Page | 159-176 | |
| Résumé anglais |
The Control of Irrigation on a Slope of the Peruvian Andes
Herein, an account is given of a study that sought to confirm peasant's observations of a lack of water on the western slopes of the Andes, where irrigation is a necessity. Development organizations have used these observations to increase the capacity of artificial lakes and make irrigation canals (dating from before the 15th century and still in use) water-tight. The diagnosis of the gravitational irrigation system in Pampas district (Yauyos, Lima, Peru) shows that there is enough water available at present and that the possibilities of adjusting the system are limited. In the catchment basin, irrigators' associations adjust the size of fields, sowing dates, and water needs for crops (mainly maize and alfalfa) to the quantity of water stored during the rainy season. The system's future can be ensured only by limiting both water losses during the irrigation of lots and soil losses from runoff on the steep slopes (20%-70%). These results can be generalized to the various types of village hydraulic networks on the western slopes of the Andes. Source : Éditeur (via Persée) |
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| Article en ligne | http://www.persee.fr/web/revues/home/prescript/article/rural_0014-2182_1989_num_115_1_3262 |
