Unit IRRIGATION AND DRAINAGE
- Course
- Agricultural and environmental sciences
- Study-unit Code
- 80015206
- Curriculum
- Verde ornamentale
- Teacher
- Alessandra Vinci
- Teachers
-
- Alessandra Vinci
- Hours
- 54 ore - Alessandra Vinci
- CFU
- 6
- Course Regulation
- Coorte 2019
- Offered
- 2020/21
- Learning activities
- Affine/integrativa
- Area
- Attività formative affini o integrative
- Academic discipline
- AGR/08
- Type of study-unit
- Obbligatorio (Required)
- Type of learning activities
- Attività formativa monodisciplinare
- Language of instruction
- Italian
- Contents
- Water cycle. Infiltration. Hydrological data analysis. Hydrostatics and hydrodynamics phenomena (outline). Water in the soil. Hydrological balance of agricultural land. Irrigation parameters. Schemes of irrigation systems. Irrigation techniques. Selection criteria for the irrigation system. Design and test of an irrigation system. Drainage techniques. Design and test of a drainage system.
- Reference texts
- FALCIAI M., Appunti di Idraulica Agraria (Teoria e Tecnica dell'Irrigazione), CUSL, Firenze
CAPRA A. & SCICOLONE B., Progettazione e gestione degli impianti di irrigazione, Edagricole
LUIGI GIARDINI, Drenaggio tubolare sotterraneo, Edagricole - Educational objectives
- The aim of the study unit is to provide the basics for the drafting and test of an irrigation and drainage system. In particular, the main knowledge acquired will be:
• define qualitatively and quantitatively the data necessary for the preparation / validation of an irrigation and drainage system
• find and define the necessary data
• process data for determining the necessary variables
• Know the criteria for interpreting data and variables
• Know the advantages and disadvantages of the different types of systems in the specific application conditions
• Know the elements of hydrology at the base of the irrigation and drainage technique
• Know the hydraulic elements on which the construction and operation of an irrigation and drainage system is based
• Know the irrigation planning criteria
• Know the design and validation criteria of an irrigation and drainage system
• Know the management criteria of an irrigation and drainage system
This knowledge led to the skills:
1. Know how to find the fundamental data
2. Know how to interpret the available data
3. Know how to process the available data
4. Know how to choose the most suitable type of system for the specific application case
5. Know how to identify the critical points of a plant
6. Know how to program a system
7. Know how to give information on the management of the plant - Prerequisites
- Knowledge of mathematics and physics
- Teaching methods
- The course is organized as follows:
-theoretical lesson about the topics of the course;
-practical training for the application of the theoretical aspects to a case study.
Students will carry out, in groups, a job to apply all the phases of definition, design and management of an irrigation system to a business case. - Other information
- Learning verification modality
- Oral exam consisting of a discussion aimed to assess the level of knowledge and understand achieved by the student on the theoretical and methodological contents indicated in the program. The oral test will also allow to test the student's communication skills on topics with a theoretical and design content.
- Extended program
- The aim of the study unit is:
- provide basic knowledge of hydrology and hydraulics functional to irrigation and drainage planning and to the design and verification of irrigation systems and drainage systems;
- illustrate and analyze irrigation and drainage planning and planning techniques, planning / validation / adaptation and management of plants.
Irrigation and drainage planning - Water cycle (global), terrestrial phase, main processes, precipitation and outflow formation. The hydrological balance of agricultural land. Phenomenological description and calculation methods of the processes involved in the hydrological balance: evaporation, transpiration, precipitation, interception, infiltration, subsurface and surface runoff, (capillary rise) with particular attention to the measurement of precipitation. Data processing. Return time. Analysis of extreme events. Environmental monitoring networks. Simulation models of evapotranspiration processes.
Hydrostatics and hydrodynamics phenomena (outline) - Fluids. Internal efforts in liquids at rest. Hydrostatic distribution of pressures. Equation of static equilibrium in an indefinite and global form. Kinematics and dynamics of liquids. Characteristic elements of motion and types of movement. Continuity equation. Uniform motion of the currents under pressure of real liquid. Free-flowing currents. Design calculation and verification of long pipelines.
Water in the soil - soil water ratios. Introduction to the problems of deficit and excess water in agricultural land. Models for the preparation of the hydrological balance (irrigated and not) for the estimation of soil water content. Irrigation requirements. Irrigation parameters. Irrigation efficiency.
Schemes of irrigation systems - Sources of supply. Adduction and distribution systems. Pressure distribution networks. Schemes of water systems. Water distribution criteria. Techniques and tools for watering: rain irrigation and localized. Uniformity of distribution, positions, choice of sprinklers. Selection criteria for the irrigation system. Management criteria for the irrigation system. Choice of piping route.
Diagrams of drainage systems. Propagation criteria for drainage in permanent and transitory regime. Materials and techniques of realization.