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The context of climate change and agroecological transition reinforces the need for water conservation in agriculture. Irrigation is the subject of much debate regarding improvements in its technological, agronomic and environmental performance. It represents one of the means of adapting to and mitigating the effects of climate change. In order for it to fully play this role, while taking into account the sustainability of aquatic environments and water and energy resources, a better understanding of existing equipment, tools and their use is necessary. The fourth edition of this practical guide presents the basic concepts of hydraulics, pumping stations and different irrigation techniques (sprinkler, localised, surface) and illustrates the efficiency of irrigation in terms of water and energy. It also offers up-to-date tools for analysis and decision-making in irrigation management and operation (from the regional level down to te plot level). Numerous links to digital content such as hydraulic calculators and concrete case studies complete the package. This publication was produced under the coordination of AFEID (French Association for Water, Irrigation and Drainage), in close collaboration with research and development organisations and technical institutes. It is intended for those involved in irrigation and water management, including farmers, development advisers, engineers and technicians.

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