Irrigation Projects and Technologies

Objectives

1. Provide students with a basic training on the infrastructure needed to support irrigation performance profession.

2. Prepare students for the practice of irrigation projects and the planning and management of irrigation systems.

Program

1. Irrigation infrastructure: flow in channels: variable flow; Uniform flow, steady flow gradually varied and rapidly varied. Combined depths; loss, length and location of the shoulder.

2. Flow by orifices and dischargers: small holes and large; louvers background; dischargers free sill thin and thick sill.

3. Environmental impact of irrigation works: Effects of transformation into irrigated on fauna, flora, soil, water availability and landscape.

4. Water and crop yields: model / water production.

5. Water balance in the soil and watering needs. Optimization and conducting irrigation. Quality of irrigation water. Design of a drip irrigation system (drop by drop and micro-sprinkler). Sizing irrigation network. Designing a sprinkler irrigation system.

6. Drainage.

Teaching Methodologies

The main methodology of teaching is to explain the theoretical basis of the program of the course that considers its multiple structuring elements, using the broadest possible range of teaching resources, including those offered by new information technologies and communication.

The teaching theoretical-practical and laboratory based on solving practical hydraulic structures to support and scale irrigation systems and projects of irrigation. The classes field consist on observation of irrigation systems and practical tests to evaluate irrigation systems.

Bibliography

Allen, R.; Pereira, L.S.; Raes, D.; Smith, M. (1998) ? Crop evapotranspiration. Guidelines for computing crop water requirements. FAO Irrigation and Drainage Paper 56, Rome.

Ayers, R.S. e Westcot, D.W. (1988) - La qualité de l´eau en agriculture. FAO Irrigation and Drainage Paper 29, Rome.

Fontes, J.C. (1994) - Utilização da temperatura do copado na condução da rega. Departamento de Engenharia Rural, Instituto Superior de Agronomia, Lisboa.

Lencastre, A. (1983) - Hidráulica Geral. Editora Luso-Brasileira. Gráfica de Coimbra.

Quintela, A.C. (1991) - Hidráulica. Fundação Caloustre Gulbenkian, Lisboa.

Pereira, L.S. (2004) - Necessidades de água e métodos de rega. Publicações Europa-América. Lisboa.

Raposo, J.R. (1996) - A Rega. Dos primitivos regadios às modernas técnicas de rega. Fundação Caloustre Gulbenkian, Lisboa.

Tiercelin J.R. (1998) - Traité d´irrigation. Lavoisier, Paris