Environnement ; Géographie de l'Asie ; Géographie historique ; Irrigation ; Japon ; Système d'irrigation
This paper portrays the distribution pattern of irrigation systems in Japan and then analyses the elements of natural environment and the irrigation development process. - (SGA)
Agriculture ; Etats-Unis ; Géographie de l'Amérique ; Hydraulique agricole ; Irrigation ; Système d'irrigation ; Technique agricole
Photographs taken in Arizona, California, Georgia, Nebraska, Colorado and Washington with detailed captions of different kinds of American irrigation techniques : flood irrigation, furrow, irrigation, sprinklers, center pivot, linear move and drip
Cet article présente les résultats d'un premier effort pour documenter et examiner de façon critique la hiérarchie des buts qui dirigent actuellement la gestion et l'investissement des opérations d'irrigation au Pakistan. Une telle activité est
primordiale pour une évaluation plus facile et plus méthodique du système d'irrigation et du rendement de l'agriculture irriguée dans le pays.
Agriculture ; Agroclimatology ; Bulgaria ; Dam ; Irrigation ; Irrigation system ; Reservoir
Irrigation, a major water use until recently, has been strongly affected by the collapse of the central planning system and by the transition towards market-based system. It has dropped to a point where less than 15% of the areas equipped
for irrigation are actually irrigated. Heavy state investments in the irrigation subsector and its vital importance for the economy make it imperative.
[b1] Research Institute for Irrigation, Drainage and Hydraulic Engineering, Sofia, Bulgarie
Eau ; Gestion de l'eau ; Irrigation ; Monde ; Méthodologie ; Ressource en eau
Irrigation ; Methodology ; Water ; Water management ; Water resources ; World
Irrigation plays a major role in improving agricultural production to cater to the needs of increasing world population. It is to be noted that in countries with advanced technologies, the water use per hectare is about half that of the less
advanced. Thus, new irrigation technology and modern methods of irrigation will play an important part in the achievement of improved irrigation efficiency.
Peasant irrigation development and food production in Ethiopia
Alimentation ; Campagne ; Coopérative agricole ; Développement rural ; Ethiopie ; Irrigation ; Politique agricole ; Production agricole
Agricultural cooperative ; Agricultural policy ; Countryside ; Ethiopia ; Farm production ; Food ; Irrigation ; Rural development
L'A. examine le développement de l'irrigation à petite échelle en Ethiopie en vue d'améliorer la production alimentaire paysanne. Il évalue le potentiel pour le développement de l'irrigation, examine le programme gouvernemental d'irrigation et
Nihon ni okeru kangai shisutemu no chiikisa (Différences régionales dans les systèmes d'irrigation au Japon)
Géographie de l'Asie ; Irrigation ; Japon ; Riziculture ; Système d'irrigation
This study attempted to find the main types of irrigation system in Japan. They can be classified into six types based on sources of irrigation water. Combining the distribution patterns presented by those six irrigations systems, three specified
Algeria ; Arid area ; Irrigation ; Oasis ; Palm plantation ; Sahara ; Water management
Exemple des palmeraies algériennes. Par rapport à l'irrigation traditionnelle par rigole, la micro-irrigation pourrait générer une économie substantielle d'eau et d'énergie de pompage, tout en assurant de manière satisfaisante les besoins de la
Agriculture ; Gestion de l'eau ; Hydraulique agricole ; Irrigation ; Pakistan ; Ressource en eau ; Système d'irrigation ; Utilisation agricole du sol
Agricultural hydrology ; Agricultural land use ; Agriculture ; Irrigation ; Irrigation system ; Pakistan ; Water management ; Water resources
Through a cultural-historical approach, generic relationships of some present patterns are traced to their origin. The origin of irrigation was probably in small alluvial valleys of Southwest Asia, which is also consideratede the hearth of seed
agriculture. From a simple beginning the irrigation and water management systems have become extremely complicated to support Pakistan's largest irrigation network in the world.
Irrigation ; Irrigation system ; Mountain ; Rill wash ; Switzerland ; Traditional agriculture ; Valais
Dating at least to the 11th century, bisses are a traditional irrigation system built in response to the periodic summer water deficits in the Valais canton of Switzerland. System expanded in 15th century in order to intensify meadow production
and remained relatively stable up to the end of the 19th century. Paper describes 20th century changes, the long-term sustainability of bisses, their relationship with other mountain irrigation systems, and irrigation planning. - (SLD)
This paper argues that relatively little is known about the potential impacts of irrigation. To illustrate the serious practical consequences for smallholders that can result from the introduction of irrigation, landlord-tenant relationships
Irrigation technologies in Bangladesh. An evaluation of consequences of different technological levels
Bangladesh ; Développement rural ; Géographie de l'Asie ; Irrigation ; Technologie
In the article attention will be directed to the national and individual efforts aiming at utilizing water for irrigation in order to be able to evaluate the potentiel and effects of irrigation, especially of the different technologies which