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.
Agriculture ; Aral Region ; Archaeology ; Ecology ; Environment ; Former USSR ; Historical geography ; Human impact ; Impact ; Irrigation ; Soviet Central Asia
was of the most importance. Complex archaeological study of these areas has made possible the reconstruction of complicated history of the development of irrigation and irrigation-based farming.
Aral Region ; Biocenosis ; Biota ; Ecosystem ; Former USSR ; Human impact ; Irrigation ; Salinisation ; Soviet Central Asia ; Vegetation degradation
The development of irrigated agriculture in the Aral Sea basin determined the replacement of natural desertic ecosystems with agrocenoses over the area of 7.2 million ha. The process that is the most expressed is underflooding, accompanied with soil
the sea level dropped: surface (river and irrigation) drainage; underground discharge of dissolved salts to the Aral Sea; salts income with liquid and solid precipitation; deflation of salts to the atmosphere, from the sea surface; accumulation in the bays