561 results on '"IRRIGATION engineering"'
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2. ZHANGZHOU MAYOR TAI DISTRICT WATER RESOURCES BUREAU invites tenders for Declaration of World Irrigation Engineering Heritage Project
- Subjects
Aquatic resources ,Irrigation engineering ,Mayors ,News, opinion and commentary - Abstract
ZHANGZHOU MAYOR TAI DISTRICT WATER RESOURCES BUREAU, China has invited tenders for Declaration of World Irrigation Engineering Heritage Project. Tender Notice No: [350625]FJCJ[GK]2024004 Deadline: August 24, 2024 Copyright © 2011-2022 [...]
- Published
- 2024
3. Automatic Flushing Strainer-Type Filter: A Method for Actual Filtration Grade Assessment.
- Author
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Cano, Nicolás D., de Camargo, Antonio Pires, Muniz, Gustavo L., Guarnizo, Jhonnatan A. Y., and Frizzone, José A.
- Subjects
- *
SUSPENDED solids , *SILICA sand , *NONWOVEN textiles , *MICROIRRIGATION , *FLUID flow - Abstract
Proper filtration selection, sizing, maintenance, and performance of a filtration system are crucial for removing suspended solids in water, preventing clogging of emitters, and ensuring a high-performing microirrigation system throughout its lifespan. Filtration prevents the intake of particles larger than the pore size specified in a given filtration grade. Proper selection of the filter media ensures efficient solid–liquid separation. Strainer-type or screen filters have elements composed of a woven or nonwoven cloth of numerous weave types. The material and characteristics of the screen directly affect the fluid flow and filter performance. The aim of this study is to propose a method for determining the actual filtration grade of filters used for irrigation. An automatic flushing strainer-type filter was equipped with five filter element models, composed of woven and nonwoven materials, for evaluation. A new methodology was developed to assess the actual filtration grade based on the removal efficiency for suspended solids under controlled and repeatable conditions. The removal efficiency of each filter element was determined for particle size ranges defined according to the filtration grade declared by the manufacturer. The proposed methodology allowed for the assessment of the actual filtration grade of each model of filter element operated with water containing suspended particles of silica sand. The filtration grade declared by the manufacturer was confirmed for some of the filter elements, but it could be modified for others. The proposed methodology could be useful for assessing the actual filtration grades of screen, disk, and media filters. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
4. Principles for optimizing the composition of a complex of machines for cleaning and restoring reclamation canals
- Author
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Kh. A. Abdulmazhidov
- Subjects
irrigation engineering ,canal cleaning ,canal cleaning complexes ,formation of canal cleaner complexes ,productivity of canal cleaners ,channel cleaner with bucket on rigid guides ,Agriculture - Abstract
The article is devoted to the principles of optimizing the composition of the complex of machines for cleaning the reclamation channels of the drainage network The fundamental initial documents in determining the composition of the complex of machines for the production of operational, repair and restoration works are technological maps for carrying out repair measures to restore the reclamation channels of the drainage system. Technological maps are formed taking into account the requirements for the elements of the drainage system, due to the specific conditions of the zone of economic regions, the natural and production characteristics of reclamation facilities.
- Published
- 2022
- Full Text
- View/download PDF
5. Handbook of Irrigation Hydrology and Management : Irrigation Methods
- Author
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Saeid Eslamian, Faezeh Eslamian, Saeid Eslamian, and Faezeh Eslamian
- Subjects
- Irrigation engineering, Irrigation
- Abstract
Ever-increasing population growth has caused a proportional increased demand for water, and existing water sources are depleting day by day. Moreover, with the impact of climate change, the rates of rainfall in many regions have experienced a higher degree of variability. In many cities, government utilities have been struggling to maintain sufficient water for the residents and other users. The Handbook of Irrigation Hydrology and Management: Irrigation Methods examines and analyzes irrigated ecosystems in which water storage, applications, or drainage volumes are artificially controlled in the landscape and the spatial domain of processes varies from micrometers to tens of kilometers, while the temporal domain spans from seconds to centuries. The continuum science of irrigation hydrology includes the surface, subsurface (unsaturated and groundwater systems), atmospheric, and plant subsystems. Further, the book addresses the best practices for various types of irrigation methods including pressure, smart, surface, and subsurface, and presents solutions for water scarcity and soil salinity in irrigation.Features: Offers water-saving strategies to increase the judicious use of scarce water resources Presents strategies to maximize agricultural yield per unit of water used for different regions Compares irrigation methods to offset changing weather patterns and impacts of climate change
- Published
- 2023
6. Irrigation Engineering Theory And Practices
- Author
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Balram Panigrahi, P.K. Agrawal and Balram Panigrahi, P.K. Agrawal
- Subjects
- Irrigation engineering
- Abstract
This text book is designed to guide students from a basic knowledge of soil, water, plant, hydrologic and hydraulics to the state-of-the-art of irrigation system design, planning and management. The book will be helpful to the students of Agriculture, Agricultural and Civil Engineering and other related fields. The book is written in simple and lucid languages which will make the students interesting in reading the book and understanding the concept of farm irrigation very effectively. The book is written covering the entire syllabus of Irrigation Engineering which is taught in various State Agricultural Universities and is written as per the recommended syllabus of fifth Deans'Committee meeting of Indian Council of Agricultural Research (ICAR), New Delhi. The book will not only be helpful to the students at under-graduate and post-graduate level, but also will be a helping tool for all practicing irrigation engineers, agriculturists, design engineers, researchers, extension personnel and all others who are directly or indirectly associated with irrigation science and engineering. The book contains 78 solved problems, 542 short and long questions, 65 tables, 135 figures and 136 references which will be of immense help to the students and design engineers. Several field experimental result are also presented at appropriate sections in various chapters in this book which will attract the attention of the students in the subject matter. In addition, the book contains a number of multiple type questions with answers. These multiple type questions are prepared covering all the chapters of irrigation engineering. These questions will help the students who prepare for various competitive examinations including GATE, NET, ARS, JRF and SRF examinations of ICAR.
- Published
- 2022
7. Optimal design of trapezoidal lined channel with least cost: Semi-theoretical approach powered by genetic programming
- Author
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Tofiq, F a and Guven, A
- Published
- 2015
8. Optimisation of the filter housing dimensions of an automatic flushing strainer-type filter.
- Author
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Cano, Nicolas D., Camargo, Antonio P., Ait-Mouheb, Nassim, Muniz, Gustavo L., Guarnizo, Jhonnatan A.Y., Pereira, Diego J.S., and Frizzone, José A.
- Subjects
- *
MICROIRRIGATION , *HOUSING , *PRESSURE drop (Fluid dynamics) , *FLUID flow - Abstract
Filtration is essential in drip irrigation systems to remove physical contaminants carried by water that can clog the emitters, cause wear, or foul components of the system, affecting its performance and lifespan. Automatic flushing strainer-type filters initiate and terminate discrete flushing cycles that are activated automatically by means of differential pressure. The objective of this study is to investigate the hydraulic performance and flow behaviour of an automatic flushing strainer-type filter operated with clean water, using experimental and numerical approaches, to optimise the dimensions of its filter housing and to increase the range of operating flow rates. Pressure drop curves were determined for the filter housing and the filter system equipped with five models of filter elements (woven and non-woven elements). Excessive pressure drop in the filter housing and low filtration rates were identified as the main drawbacks of the original filter system. Numerical simulations enabled the identification of the most critical regions in terms of pressure losses near the transitions between the inlet and outlet segments of the pipe. Four designs of filter housing were simulated to evaluate the possibilities of optimising the filter housing dimensions using a constant filtering area. Larger inlet and outlet diameters combined to a filter housing shorter and wider were improvements in the filter housing dimensions that enabled to decrease the pressure drop in the filter and/or increase the range of operating flow rates. The results provided useful information for enhancing the hydraulic performance of the filtration system. [Display omitted] • An automatic flushing strainer-type filter and five filter elements were studied. • Excessive pressure losses were caused by the filter housing design. • Four designs of filter housing were investigated by numerical approaches. • CFD enabled to investigate fluid flow and to optimise the filter housing dimensions. • Improvements enabled to improve the hydraulic performance of the filter housing. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
9. LE ZHI COUNTY WATER AFFAIRS BUREAU invites tenders for Pipe Network Extension and Irrigation Engineering Supervision Service
- Subjects
Irrigation engineering ,News, opinion and commentary - Abstract
LE ZHI COUNTY WATER AFFAIRS BUREAU, China has invited tenders for Pipe Network Extension and Irrigation Engineering Supervision Service. Tender Notice No: N5120222024000007 Deadline: March 1, 2024 Copyright © 2011-2022 [...]
- Published
- 2024
10. IRRIGATION AND WATER POWER ENGINEERING
- Author
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Dr. B.C. PUNMIA and Dr. B.C. PUNMIA
- Subjects
- Water resources development, Hydraulic engineering, Irrigation engineering
- Abstract
Section I : IRRIGATION PRACTICE Chapter 1. Introduction Chapter 2. Methods of Irrigation Chapter 3. Water Requirements of Crops Section II : WATER RESOURCES ENGINEERING Chapter 4. Hydrology Chapter 5. Ground Water : Well Irrigation Chapter 6. Reservoir Planning Chapter 7. DAMS-I : General Chapter 8. DAMS-II : Gravity Dams Chapter 9. DAMS-III : Arch and Buttress Dams Chapter 10. DAMS-IV Earth and Rockfill Dams Chapter 11. DAMS-V : Spillways Chapter 12. Diversion Headworks Section III : DISTRIBUTION SYSTEMS Chapter 13. Flow Irrigation Chapter 14. Irrigation Channels - I : Silt Theories Chapter 15. Irrigation Channels - II : Design Procedure Chapter 16. Waterlogging and Canal Lining Chapter 17. Canal Outlets Chapter 18. Canal Regulation Works Chapter 19. Cross Drainage Works Section IV : MISCELLANEOUS TOPICS Chapter 20. River Engineering Chapter 21. Water Power Engineering Chapter 22. Water Resources Planning Chapter 23. Important Dams of India
- Published
- 2021
11. Potential Use of Solar Energy and Emerging Technologies in Micro Irrigation
- Author
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Mulmudi Hemant Kumar and Mulmudi Hemant Kumar
- Subjects
- Solar energy, Irrigation engineering
- Abstract
Potential Use of Solar Energy and Emerging Technologies in Micro Irrigation is a book that deeply emphasizes on the various kinds of applications that solar energy can have in the field of micro irrigation. The book explores areas in which the solar energy can be applied and the technologies that can be run on solar power. The book also explores the possible applications of current solar technologies in this field and throws some light on the ways in which the solar power can cut down the costs significantly and also reduce the pressure on other sources of energy.
- Published
- 2021
12. Modern Land Drainage : Planning, Design and Management of Agricultural Drainage Systems
- Author
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Willem Vlotman, Lambert Smedema, David Rycroft, Willem Vlotman, Lambert Smedema, and David Rycroft
- Subjects
- Drainage, Irrigation engineering
- Abstract
Modern Land Drainage 2nd edition is a fully revised and updated edition of the 2004 edition. Modern Land Drainage describes traditional drainage formulas (Hooghoudt, Kirkham, Donnan, Ernst, Glover-Dumm) for rainfed agriculture in the humid temperature zone. Significant parts are devoted to drainage for salinity control of irrigated land in (semi-) arid zones, and to drainage of rice land in the humid tropics. Institutional, management and maintenance aspects are extensively covered, as well as the mitigation of adverse impacts of drainage interventions on the environment. The latest computer applications for drainage design in the context of integrated water management are described (DRAINMOD, HEC, SWAP, etc.). Field surveys are executed by governments, with the aid of consultants, but rarely are the end stakeholders (i.e., farmers and general public) involved from inception to planning to execution of a drainage system. Yet, during the Operation, Management and Maintenance (OMM) phase of a water management system, they are expected to takeover, run, bear and be responsible for the costs of OMM. The book describes successful methodologies and processes to be followed for engagement of stakeholders at all levels, from government to farm, from minister to farmer, and, from beginning to end. The book covers all aspects needed for sustainable drainage. The latest survey methodologies with satellites and drones are suggested to assess cause and effect. Waterlogging and salinity are the effect of something caused most likely upstream of the drainage problem location. Hence treating the cause may be more cost-effective. Triple Bottom Line (social, environmental and financial considerations) and the water-food-energy nexus are an integral part of the drainage design process. Controlled drainage, i.e. the balance of removal and conservation of drainage water and minimising solute transport as low as reasonably achievable (ALARA principle) is extensively described. This work is intended for use both as a university level textbook and as a professional handbook; it is of particular value to professionals engaged in drainage development in the context of integrated water resources and river basin management, civil and agricultural engineers, government officials, university students and libraries.
- Published
- 2020
13. Handbook of Irrigation System Selection for Semi-Arid Regions
- Author
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Mohammad Albaji, Saeid Eslamian, Abd Ali Naseri, Faezeh Eslamian, Mohammad Albaji, Saeid Eslamian, Abd Ali Naseri, and Faezeh Eslamian
- Subjects
- Irrigation engineering, Arid regions agriculture, Irrigation
- Abstract
The Handbook of Irrigation System Selection for Semi-Arid Regions compares the various types of available irrigation systems for different regions and conditions, and explains how to analyze field data to determine the suitability of the land for surface, sprinkle, or drip irrigation systems. The book focuses on strategies for irrigation development and management and examines deficit irrigation and partial root-zone drying systems. Also, solute leaching modeling under different irrigation systems, soil moisture conditions, and organic fertilizer application in arid areas are discussed. Further, it examines multi-criteria decision making for irrigation management and the appraisal of agricultural lands for irrigation in hot, sub-humid regions. Features: Presents comparative analysis to aid in the selection of the most appropriate types of irrigation systems according to land characteristics. Includes numerous practical case studies. Offers parametric evaluation systems for irrigation purposes. Considers data from semi-arid zones, each with different sub-climates. Focusing on semi-arid land, the book highlights parametric evaluation systems for irrigation purposes, along with the use of analytical hierarchy processes integrated with GIS to determine which systems are best suited. This comprehensive and well-illustrated handbook will be of great interest to students, professionals, and researchers involved with all aspects of irrigation in semi-arid regions.
- Published
- 2020
14. The future bioenergy potential of Australia
- Author
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World Engineers Convention (2019: Melbourne, Australia) and Thomas, Ian F
- Published
- 2019
15. Handbook of Irrigation Technology : Volume 1
- Author
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Herman J. Finkel and Herman J. Finkel
- Subjects
- Irrigation engineering
- Abstract
This title was first published in 1982: Overview of Irrigation
- Published
- 2018
16. Handbook of Irrigation Technology : Volume 2
- Author
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herman J. Finkel and herman J. Finkel
- Subjects
- Irrigation engineering
- Abstract
This book was first published in 1983. It provides a comprehensive overview of irrigation technologies, techniques and economics, tailored to a multitude of different crops.
- Published
- 2018
17. Engineering Interventions in Sustainable Trickle Irrigation : Irrigation Requirements and Uniformity, Fertigation, and Crop Performance
- Author
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Megh R. Goyal, Basamma K. Aladakatti, Megh R. Goyal, and Basamma K. Aladakatti
- Subjects
- Microirrigation, Irrigation engineering
- Abstract
Improving agricultural water use efficiency (WUE) is vitally important in many parts of the world due to the decreasing availability of water resources and the increasing competition for water between different users. Micro irrigation is an effective tool for conserving water resources. Studies have revealed a significant water savings, ranging from 40% to 70% under drip irrigation compared with surface irrigation. This new volume, Engineering Interventions in Sustainable Trickle Irrigation: Irrigation Requirements and Uniformity, Fertigation, and Crop Performance, presents valuable research that evaluates crop water and fertigation requirements, examines optimum irrigation and fertigation scheduling, and analyzes the performance of agricultural crops under micro irrigation. With an interdisciplinary perspective, this volume addresses the urgent need to explore and investigates the current shortcomings and challenges of water resources engineering, especially in micro irrigation engineering. The volume discusses crop water requirements, fertigation technology, and performance of agricultural crops under best management practices. The chapter authors present research studies on drip irrigated tomato, chilies, cucumber, eggplant, cabbage, garlic, sugarcane maize, cashew nut, sapota, banana, mango, and blueberries. Removing the research gap, this volume provides new information that will be valuable to those involved in micro irrigation engineering.
- Published
- 2018
18. ICID insights
- Author
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White, Eve
- Published
- 2021
19. Planning and Evaluation of Irrigation Projects : Methods and Implementation
- Author
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Raveendra Kumar Rai, Vijay P. Singh, Alka Upadhyay, Raveendra Kumar Rai, Vijay P. Singh, and Alka Upadhyay
- Subjects
- Irrigation--Management, Irrigation engineering
- Abstract
Planning and Evaluation of Irrigation Projects: Methods and Implementation presents the considerations, options and factors necessary for effective implementation of irrigation strategies, going further to provide methods for evaluating the efficiency of systems-in-place for remedial correction as needed. As the first book to take this lifecycle approach to agricultural irrigation, it includes real-world examples not only on natural resource availability concerns, but also on financial impacts and measurements. With 21 chapters divided into two sections, this book is a valuable resource for agricultural and hydrology engineers, conservation scientists and anyone seeking to implement and maintain irrigation systems. - Uses real-world examples to present practical insights - Incorporates both planning and evaluation for full-scope understanding and application - Illustrates both potential benefits and limitations of irrigation solutions - Provides potential means to increase crop productivity that can result in improved farm income
- Published
- 2017
20. Irrigation: Scheduling
- Author
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Jennifer Laffan, Peter Smith, Jennifer Laffan, and Peter Smith
- Subjects
- Water resources development, Irrigation engineering
- Abstract
Scheduling irrigation is about planning when and how much water to apply to a crop to achieve crop production or a particular quality. The principles of scheduling water apply to all crops, however the critical timing, methods and techniques can vary with the crop.
- Published
- 2016
21. Irrigation and Drainage Engineering
- Author
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Peter Waller, Muluneh Yitayew, Peter Waller, and Muluneh Yitayew
- Subjects
- Water-supply, Hydrogeology, Earth sciences, Irrigation engineering, Drainage, Soil science, Soil conservation, Hydraulics, Engineering geology, Foundations
- Abstract
This textbook focuses specifically on the combined topics of irrigation and drainage engineering. It emphasizes both basic concepts and practical applications of the latest technologies available. The design of irrigation, pumping, and drainage systems using Excel and Visual Basic for Applications programs are explained for both graduate and undergraduate students and practicing engineers. The book emphasizes environmental protection, economics, and engineering design processes. It includes detailed chapters on irrigation economics, soils, reference evapotranspiration, crop evapotranspiration, pipe flow, pumps, open-channel flow, groundwater, center pivots, turf and landscape, drip, orchards, wheel lines, hand lines, surfaces, greenhouse hydroponics, soil water movement, drainage systems design, drainage and wetlands contaminant fate and transport. It contains summaries, homework problems, and color photos. The book draws from the fields of fluid mechanics, soil physics, hydrology,soil chemistry, economics, and plant sciences to present a broad interdisciplinary view of the fundamental concepts in irrigation and drainage systems design.
- Published
- 2016
22. CHALLENGES AND OPPORTUNITIES FOR EDUCATION IN IRRIGATION ENGINEERING.
- Author
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Porter, D. O., Irmak, S., Lamm, F., Marek, T. H., and Rein, B.
- Subjects
- *
ENGINEERING education , *ACADEMIC programs , *DISTANCE education , *PUBLIC-private sector cooperation , *AGRICULTURAL extension work , *KNOWLEDGE gap theory - Abstract
Irrigation continues to be economically important in the U.S. and internationally, yet there is concern about future accessibility to appropriate expertise and the engineering preparation of irrigation professionals for both public and private sectors. Recent and impending retirements of academic and industry leaders, losses of some important academic programs (curricula/degree programs, research, and extension) in irrigation engineering, and reduced numbers of students threaten to significantly limit irrigation engineering capacity, especially in agricultural irrigation. Some of the challenges can be met through opportunities afforded by development of distance education programs; expansion of multi-state, multiagency, multi-university collaborations; and increasing public-private partnerships, as well as through vigorous recruitment efforts. Recruitment can be strengthened by improving the competitiveness of salaries to be commensurate with other engineering disciplines, and by demonstrating and better explaining the abilities of the irrigation engineering profession to meet future challenges related to food, fiber, fuel, and ecosystem demands of a rapidly growing global population. While access to irrigation engineering expertise, especially domestic expertise, has declined, the need for such technical support and information for practitioners has not decreased. In fact, in many cases, technical advancements from public and industry developments have greatly outpaced the capacity for applied research and extension programs to robustly evaluate technologies and deliver objective, science-based recommendations. Growing knowledge gaps and time lags have exacerbated restlessness among some audiences, increasing the opportunities for promotion of unsubstantiated claims for some products that remain unchallenged, and further confusing appropriate selection from a growing array of available technologies. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
23. Characterization of the wind impact on the Torrumbarry irrigation district and its implications for control
- Author
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Australian Control Conference (2016 : Newcastle. NSW), Cescon, Marzia, and Weyer, Erik
- Published
- 2016
24. Irrigation special : going underground [part 1]
- Author
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Grigg, Joanna and Gray, Lynda
- Published
- 2021
25. Proyecto ejecutivo de una instalación de riego por aspersión en una parcela de 4,45 ha en Mansilla de las Mulas (León)
- Author
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Universitat Politècnica de Catalunya. Departament d'Enginyeria Agroalimentària i Biotecnologia, Universidad de León, Iranzo Iranzo, Fco. Jose, Lopes Gutierrez, Alina, Universitat Politècnica de Catalunya. Departament d'Enginyeria Agroalimentària i Biotecnologia, Universidad de León, Iranzo Iranzo, Fco. Jose, and Lopes Gutierrez, Alina
- Abstract
The project is drafted at the request of the developer who wishes to convert a 4.45 ha plot of land located in the municipality of Mansilla de las Mulas, León, into an irrigation area. Previously, the plot was dedicated to dryland crops, but it has been decided to convert it to irrigation, taking advantage of the fact that the plot is located within the irrigation zone managed by the Community of Irrigators of the Left Bank of the Porma River (León). The irrigation network guarantees a minimum flow rate of 40 L/s with a pressure at the plot's hydrant between 6 and 10 atm and an allocation of 6,000 m3/year. The project includes the technical justification and the necessary executive documents to carry out the transformation works by installing a full-coverage irrigation system with fixed sprinklers and buried pipes. The proposal includes the automation of the system by installing solenoid valves at each of the 6 hydrants that serve the 6 sectors into which the estate has been divided. The productive alternative for the irrigation area consists of extensive crops, with rotations alternating winter cereals with irrigation support during springs with low precipitation, followed by medium to long-cycle corn with abundant irrigation support. Keywords: León, buried coverage, agronomic design, hydraulic design., El projecte s'elabora a petició del promotor que desitja realitzar la transformació a regadiu d'una parcel·la de 4,45 ha situada al municipi de Mansilla de les Mulas, a Lleó. Anteriorment, la parcel·la estava dedicada a conreus de secà, però s'ha decidit fer una transformació a regadiu aprofitant que la parcel·la es troba dins la zona de regadiu gestionada per la Comunitat de Regants de la Marge Esquerra del Porma (Lleó). La xarxa de regadiu garanteix un cabal mínim de 40 L/s amb una pressió a l'hidrant de parcel·la entre 6 i 10 atm i una dotació de 6.000 m3/anuals. El projecte contempla la justificació tècnica i els documents executius necessaris per realitzar les obres de transformació mitjançant la instal·lació d'un sistema de reg amb cobertura total amb aspersors fixes i canonades enterrades. La proposta contempla l'automatització del sistema mitjançant la instal·lació d'electrovàlvules a cadascun dels 6 hidrants que atenen respectivament els 6 sectors en què s'ha dividit la finca. L'alternativa productiva de la zona de regadiu és de conreus extensius, amb rotacions que alteren els cereals d'hivern amb suport de reg a les primaveres amb escasses precipitacions, seguits de mores de cicle mitjà-llarg amb suport d'abundant reg. Paraules clau: Lleó, cobertura enterrada, disseny agronòmic, disseny hidràulic., El proyecto se redacta a petición del promotor quien desea realizar la transformación a regadío de una parcela de 4,45 ha situada en el municipio de Mansilla de las Mulas, León. Anteriormente la parcela estaba dedicada a cultivos de secano, pero se ha decidido hacer una transformación a regadío aprovechando que la parcela se encuentra dentro la zona de riego gestionada por la Comunidad de Regantes de la Margen Izquierda del Porma (León). La red de riego garantiza un caudal mínimo de 40 L/s con una presión en el hidrante de parcela entre 6 y 10 atm y una dotación de 6.000 m3/año. El proyecto contempla la justificación técnica y los documentos ejecutivos necesarios para realizar las obras de transformación mediante la instalación de un sistema de riego en cobertura total con aspersores fijos y tuberías enterradas. La propuesta contempla la automatización del sistema mediante la instalación de electroválvulas en cada uno de los 6 hidrantes que atienden respectivamente a los 6 sectores en que se ha dividido la finca. La alternativa productiva de la zona de riego es de cultivos extensivos; con rotaciones que alternan los cereales de invierno con apoyo de riego en las primaveras con escasas precipitaciones, seguidos de maíces de ciclo medio-largo con soporte de abundante riego. Palabras clave: León, cobertura enterrada, diseño agronómico, diseño hidráulico., Incoming, Objectius de Desenvolupament Sostenible::2 - Fam zero, Objectius de Desenvolupament Sostenible::9 - Indústria, Innovació i Infraestructura
- Published
- 2023
26. Irrigation Engineering
- Author
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Author, Reddy, R N ed, Author, and Reddy, R N ed
- Subjects
- Irrigation engineering
- Published
- 2014
27. Sensing Technologies For Precision Irrigation
- Author
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Dubravko Ćulibrk, Dejan Vukobratovic, Vladan Minic, Marta Alonso Fernandez, Javier Alvarez Osuna, Vladimir Crnojevic, Dubravko Ćulibrk, Dejan Vukobratovic, Vladan Minic, Marta Alonso Fernandez, Javier Alvarez Osuna, and Vladimir Crnojevic
- Subjects
- Irrigation--Remote sensing, Irrigation engineering
- Abstract
This brief provides an overview of state-of-the-art sensing technologies relevant to the problem of precision irrigation, an emerging field within the domain of precision agriculture. Applications of wireless sensor networks, satellite data and geographic information systems in the domain are covered. This brief presents the basic concepts of the technologies and emphasizes the practical aspects that enable the implementation of intelligent irrigation systems. The authors target a broad audience interested in this theme and organize the content in five chapters, each concerned with a specific technology needed to address the problem of optimal crop irrigation. Professionals and researchers will find the text a thorough survey with practical applications.
- Published
- 2013
28. Impact of irrigated agriculture on groundwater-recharge salinity: a major sustainability concern in semi-arid regions.
- Author
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Foster, Stephen, Pulido-Bosch, Antonio, Vallejos, Ángela, Molina, Luis, Llop, Armando, and MacDonald, Alan M.
- Subjects
IRRIGATION farming ,ARID regions ,IRRIGATED soils ,SALINITY ,SALINE waters ,SOIL science ,GROUNDWATER recharge ,IRRIGATION management - Abstract
Intensive irrigated agriculture substantially modifies the hydrological cycle and often has major environmental impacts. The article focuses upon a specific concern—the tendency for progressive long-term increases in the salinity of groundwater recharge derived from irrigated permeable soils and replenishment of unconfined aquifers in more arid regions. This process has received only scant attention in the water-resource literature and has not been considered by agricultural science. This work makes an original contribution by analysing, from scientific principles, how the salinisation of groundwater recharge arises and identifies the factors affecting its severity. If not proactively managed, the process eventually will impact irrigation waterwell salinity, the productivity of agriculture itself, and can even lead to land abandonment. The types of management measure required for mitigation are discussed through three detailed case histories of areas with high-value groundwater-irrigated agriculture (in Spain, Argentina and Pakistan), which provide a long-term perspective on the evolution of the problem over various decades. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF
29. Aplicación de la tecnología de filtración en múltiples etapas con sistemas de riego localizado de alta frecuencia
- Author
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Luis Darío Sánchez and Luis Darío Sánchez
- Subjects
- Irrigation, Irrigation engineering, Water--Purification--Filtration
- Abstract
Este libro de investigación muestra la evaluación realizada, a escala piloto, a la tecnología de Filtración en Múltiples Etapas (FiME), para mejorar la calidad de agua en sistemas de riego con el fin de disminuir el riesgo de obturación en los emisores de sistemas de Riego Localizado de Alta Frecuencia (RLAF). Se estudió la eficiencia de remoción de parámetros físicos, químicos y microbiológicos que inciden en la obturación de los emisores de riego localizado, para tres configuraciones FiME (Filtro Grueso Dinámico, FGDi + Filtro Grueso Ascendente en Capas, FGAC; FGDi + Filtro Grueso Ascendente en serie en 2 etapas, FGAS2; y FGDi + FGAC + Filtro Lento en Arena, FLA) y un filtro convencional de anillos, FC. El efluente de cada una de esas tecnologías alimentó cuatro tipos de sistemas RLAF: Microjet, Lyn, Autocompensado y Cinta de riego.
- Published
- 2011
30. Practices of Irrigation & On-farm Water Management: Volume 2
- Author
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Hossain Ali and Hossain Ali
- Subjects
- Irrigation engineering, Irrigation farming, Water-supply, Agricultural, Water in agriculture
- Abstract
The comprehensive and compact presentation in this book is the perfect format for a resource/textbook for undergraduate students in the areas of Agricultural Engineering, Biological Systems Engineering, Bio-Science Engineering, Water Resource Engineering, and Civil & Environmental Engineering. This book will also serve as a reference manual for researchers and extension workers in such diverse fields as agricultural engineering, agronomy, ecology, hydrology, and meteorology.
- Published
- 2011
31. Supply Of Flow In Open Channels 5th Edition, Lpa Text Book Of Fluid Mechanics, Fluid Mechanics, Water Resources Engineering Vol Ii Irrigation Engineering Hydraulic Structures, Irrigation And Water Power Engineering, Groundwater Hydrology, Groundwater, Wat
- Subjects
Aquatic resources ,Water, Underground ,Irrigation engineering ,Business, international - Abstract
Tenders are invited for Supply of flow in open channels 5th edition, lpa text book of fluid mechanics, fluid mechanics, water resources engineering vol ii irrigation engineering hydraulic structures, irrigation [...]
- Published
- 2022
32. A 2-D roesser model for automated irrigation channels and tools for practical stability and performance analysis
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Conference on Control Engineering (2nd : 2012 : Sydney, N.S.W.), Soltanian, Laven, and Cantoni, Michael
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- 2012
33. MPC-based reference management for automated irrigation channels
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Conference on Control Engineering (2nd : 2012 : Sydney, N.S.W.), Kearney, Michael, and Cantoni, Michael
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- 2012
34. Fundamentals of Irrigation and On-farm Water Management: Volume 1
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Hossain Ali and Hossain Ali
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- Environmental engineering, Environmental management, Water in agriculture, Water-supply, Agricultural, Irrigation farming, Agriculture, Irrigation engineering
- Abstract
Agriculture is one of the few industries that has been creating resources conti- ously from nature. Sustainability of this industry is a crucial issue at now-a-days. Agricultural technologies are important to feed the growing world population. Agricultural engineering has been applying scienti?c principles for the optimal use of natural resources in agricultural production for the bene?t of humankind. The role of agricultural engineering is increasing in the coming days at the forthcoming challenges of producing more food with less water coupled with climate uncertainty. I am happy to know that a book entitled'Fundamentals of Irrigation and On-farm Water Management', written by Engr. Dr. M. H. Ali, is going to be p- lished by Springer. The book is designed to cover the major?elds of agricultural and environmental engineering such as weather, plant, soil, water, and basics of on-farm water management. The book will be quite useful for the students of agricultural engineering. Students of other related branches of engineering s- ences, and engineers working in the?eld and at research institutes will also be beni?ted. The book may serve as a text book for the students and as a practical hand-book for the practitioners and researchers in the?eld of irrigation and on-farm water management. Utilization of the recent literature in the area and citation of relevant journals / reports have added a special value to this book. Considering the topics covered, engineers, scientists, practitioners, and educators will?nd this book as a valuable resource.
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- 2010
35. Irrigation Engineering
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Reddy, R. N. and Reddy, R. N.
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- Irrigation engineering
- Abstract
Description based on print version record.
- Published
- 2010
36. Managing the environment in a pinch: red swamp crayfish tells a cautionary tale of ecosystem based management in northeastern Italy.
- Author
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Gavioli, Anna, Milardi, Marco, Lanzoni, Mattia, Mantovani, Sara, Aschonitis, Vassilis, Soana, Elisa, Fano, Elisa Anna, and Castaldelli, Giuseppe
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- *
HYDRAULICS , *CRAYFISH , *DECAPODA , *IRRIGATION engineering , *PREDATION - Abstract
Highlights • Agricultural irrigation canals need invasive crayfish management. • Complex interactions exist between crayfish, predators and the environment. • Riparian vegetation provides crayfish with predation shelter. • Fish predation in deeper and faster waters negatively affects invasive crayfish. • More water in irrigation canals during the winter can limit the invasion process. Abstract Farmlands are globally widespread and their management should consider both human and environmental needs. In fact, these man-made ecosystems provide subsistence to the human population but are also habitats for plant and animal communities. The worldwide increase of exotic species has affected native communities, but also human activities or health. We used an exploited farmland in northern Italy, where many exotics are present, as a test case for identifying restoration measures based on an ecosystem approach. In particular, we focused on red swap crayfish for its ecosystem engineering capabilities, and examined the factors affecting its invasion success in order to attempt the definition of management strategies. We used multivariate and regression analysis to evaluate the relationships between the red swamp crayfish, water quality, macrophytes abundance, watercourse hydraulics and the fish community. All analyses indicated that red swamp crayfish was less likely to establish in large, deeper and fast flowing waterways, especially when these are deprived of vegetation and less eutrophicated. Based on our results, fish predation was also a significant factor in limiting red swamp crayfish abundance. We thus concluded that a different hydraulic management, which leaves more water in irrigation canals throughout the winter, could be possibly used to slow down or even reverse the invasion process. [ABSTRACT FROM AUTHOR]
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- 2018
- Full Text
- View/download PDF
37. Quantitative study of the crop production water footprint using the SWAT model.
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Luan, Xiaobo, Wu, Pute, Sun, Shikun, Wang, Yubao, and Gao, Xuerui
- Subjects
- *
AGROHYDROLOGY , *AGRICULTURAL productivity , *IRRIGATION engineering , *WATER requirements for crops , *HYDROLOGICAL research - Abstract
Assessment of the water use efficiency is the key to effectively manage agricultural water resource. The water footprint is a new index for water use evaluation, and its quantification is a precondition for assessment of the agricultural water use efficiency. Due to the shortage of water footprint calculation methods and computational module defects, this study aims to establish a method for calculating the water footprint of crop production based on hydrological processes. In this study, the field-scale water footprints of wheat, corn and sunflower were calculated using the SWAT model in the Hetao irrigation district (HID), China. The results showed that the average total water footprints of wheat, corn and sunflower were 1.036 m 3 /kg, 0.774 m 3 /kg and 1.510 m 3 /kg, respectively. Additionally, the proportions of green water footprints in wheat, corn and sunflower were 22.3%, 26.1% and 29.4%, respectively. Water footprint calculations based on the SWAT model can reflect the spatial differences of water footprints during the process of crop production. The overall distribution pattern of the green, blue and total water footprints for the three crops demonstrated that high values were in the east part of the HID, followed by the west and the central areas. The SWAT-based water footprint offers high spatial resolution and is effective in exploring the spatial heterogeneity of crop water footprints. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF
38. Influence of Flushing Pressure before Irrigation on the Anti‐Clogging Performance of Labyrinth Channel Emitters.
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Yu, Liming, Li, Na, Yang, Qiliang, and Liu, Xiaogang
- Subjects
IRRIGATION management ,FLUSHING of water-pipes ,PARTICLE size distribution ,WATER pressure ,IRRIGATION engineering - Abstract
Copyright of Irrigation & Drainage is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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- 2018
- Full Text
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39. The underlying truth
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- 2014
40. Will Subsurface Drip Irrigation Improve the Sustainability of Irrigation Water Use on Dairy Farms?
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International Conference on Water Resources and Environment Research (4th : 2008 : Adelaide, S. Aust.), Finger, Lucy, Wang, QJ, Chen, D, and Malano, H
- Published
- 2008
41. Utah Board of Water Resources 75th Anniversary
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Hasenyager, Candice, Shawcroft, Gene, Farrell, Steve, Stephens, Kyle, DeBernardi, Shalaine, Hasenyager, Candice, Shawcroft, Gene, Farrell, Steve, Stephens, Kyle, and DeBernardi, Shalaine
- Abstract
2022 marks the 75th anniversary of the Utah Board of Water Resources! It was originally named the Utah Water and Power Board in 1947. The Board administers revolving funds to develop new water projects and refurbish aging projects throughout the state of Utah. Seventy-five years, 1,530 projects, and $988M in Board Funding. From dam development and upgrades, to water data collection and planning, and hundreds of critical projects in between, the Board has worked hard to protect Utah's water. Now more than ever, they're committed to collaboration with the water community to address the challenges ahead of us.
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- 2022
42. Technology: Urban: AFL oval irrigation: Gets a kick to top tier
- Published
- 2018
43. The Qanats of Iran.
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Wulff, H. E.
- Subjects
QANATS ,IRRIGATION engineering ,WATER-supply engineering ,AGRICULTURAL engineering - Abstract
Provides information on the qanat system, a method of digging underground aqueducts that would bring ground water to arid plains in Iran. Background information about the qanat system; Benefits of the system to the farming sector; Discussion on the way the system is being implemented.
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- 1968
- Full Text
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44. How region could become 'world's vege garden'; Canterbury to be a 'water harvester'; [Canterbury water]
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Chalmers, Heather and McCrone, John
- Published
- 2018
45. The Management of Water Quality and Irrigation Technologies
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Jose Albiac, Ariel Dinar, Jose Albiac, and Ariel Dinar
- Subjects
- Water quality management, Irrigation engineering
- Abstract
This book is an outcome from the International Expo'Water and Sustainable Development'held in Zaragoza (Spain) in 2008. Support from the Spanish Ministry of Environment, Caja Rioja, Government of Aragon, and the World Bank is acknowledged.'Few resources will play a more important role in shaping our economic future, or face more daunting challenges, than water. This internationally acclaimed team of experts has produced a first-rate volume that is full of intriguing, practical ideas for meeting those challenges in a rich variety of institutional settings.'Tom Tietenberg, Mitchell Family Professor of Economics, Emeritus, Colby College, USA'This volume brings together two critical but interrelated dimensions of water challenge, i.e. water pollution, particularly from non-point sources, and water conservation. The editors are well known experts on the subject as are the contributors.'R. Maria Saleth, International Water Management Institute, Sri Lanka and Associate Editor, Water Policy'The profound contribution of this volume is that it brings together various economic concepts and policy dilemmas regarding water shortages, non-point source pollution, efficiency of water use and irrigation technology. Recommended reading for anyone working in the area of water management.'Henk Folmer, University of Groningen and Wageningen University, The Netherlands As countries face deteriorating water and environmental quality as well as water shortages, pollution control and the efficiency of water use become of paramount importance. Agriculture is one of the main non-point polluters of water bodies and irrigation for agriculture is one of the main consumers of water. While it is very hard to regulate pollution from agriculture, attempts have been made via economic and command and control instruments, and also through investments in technologies and ecosystems recovery. Coping with non-point pollution takes the form of both policy intervention and technology development. Likewise it is recognized that irrigation efficiency varies across countries, influenced by both technology and supporting adoption policies. Countries that lead in irrigation technology and supporting policies have certain traits in common. They face very high scarcity and are pushed to find innovative solutions, both technical and policy related. The recent multibillion investments in irrigation technologies in Spain, and similar proposals in Australia, for example, highlight the potential of irrigation technologies to cope with scarcity and water quality degradation. This book reviews all of the above issues, presents experiences in selected countries, and assesses the degree of success of alternative policies for coping with non-point water pollution and improving irrigation efficiency.
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- 2009
46. THE SAOURA FOGGARAS: DEGRADATION OF HYDRAULIC SYSTEM MILLENNIUM CASE OF BENI ABBES, OUAKDA, BENI OUNIF AND LAHMAR (ALGERIA).
- Author
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REMINI, Boualem, REZOUG, Cherrif, and HAMOUDI, Saaed
- Subjects
QANATS ,PUMPING machinery ,WELLS ,HYDRAULIC structures ,IRRIGATION engineering ,WATER-supply engineering - Abstract
In this article, we studied, for the first time, the foggaras of Saoura. Five missions were carried out in the oases of Kerzaz, Lahmar, Boukais, Beni Ounif, Ouakda, and Beni Abbes during the years 2009, 2010, 2011, 2012 and 2013. The first results showed that there was a difference between the foggaras of Touat and those of Saoura. The galleries of Saoura are much shorter than those of Touat and Gourara. On the contrary, the distribution of water from the Touat and Gourara foggaras is carried out per unit volume, whereas from the Saoura foggaras per unit time. The foggaras we visited are practically in a degraded condition. The contribution of modern technology (pumps and wells) in the oases of Saoura is the principal cause of the decline of the hydraulic system millennium. [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
- View/download PDF
47. IRRIGATION ENGINEERING IN SPAIN AND HOW IT HAS CHANGED THE COUNTRY'S LANDSCAPES.
- Author
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García-Asensio, José M. and Ayuga, Francisco
- Subjects
- *
IRRIGATION engineering , *LANDSCAPES , *MEDITERRANEAN climate , *WATER use - Abstract
Irrigation is a rural development technique widely extended in, and affecting the landscape of, areas of Mediterranean climate. In Spain, irrigation accounts for ⅔ of all water use. The country has over 3.5 million ha of irrigated land, some 15% of all its agricultural land. Valley bottoms and riversides are the landscapes most commonly associated with irrigation in Spain, followed by peninsular coastal and interior plains, basins, hollows and depressions. This paper describes the engineering infrastructures associated with irrigation, the structures involved in water capture, transport, storage and distribution, and water use and drainage in the irrigated lowlands of Spain. It also examines the environmental impact of such water use. Several descriptors are proposed to describe its association with the landscape. [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
- View/download PDF
48. Environmental and health risks associated with reuse of wastewater for irrigation.
- Author
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Shakir, Eman, Zahraw, Zahraa, and Al-Obaidy, Abdul Hameed M.J.
- Subjects
IRRIGATION management ,IRRIGATION engineering ,SALINITY & the environment ,WASTEWATER treatment ,WASTE products - Abstract
The present study focuses on the environmental and health risks associated with the use of treated wastewater produced from Al-Rustamia third extension plant for irrigation. The measured data are used to evaluate comprehensive pollution index (CPI) and organic pollution index (OPI). The average CPI was found as 0.69 which indicated to be slightly polluted for all seasons and a similar result was also obtained with OPI, which is found to slightly vary in the range 1.29–1.60 which indicates as being to be contaminated. Also to evaluate its suitability for irrigation purposes, Sodium Adsorption Ratio (SAR), Soluble Sodium Percentage (SSP) and Residual Sodium Carbonate (RSC) were calculated following standard equations and found experimentally as (8.70), (74.76) and (2.68) respectively. Irrigation water classes are used for Salinity hazard (EC) and Sodium hazard (SAR) to assess water suitability for irrigation, and it is found that samples in summer and autumn in the class of C3-S1, indicate high salinity and low sodium water, while in spring and winter in the class of C4-S1, they indicate very high-salinity. Furthermore, the data indicate a slight to moderate degree of restriction on the use of this treated wastewater in irrigation due to chloride hazard. RSC value is more than 1.25 at all seasons, indicating that samples in summer and autumn are doubtful for irrigation purposes, while the samples in spring and winter are unsuitable for irrigation. [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
- View/download PDF
49. Qanat: a resource or a hazard? Rebuttal to 'Qanat is not a hazard' by Parise (Environ Earth Sci 2016 75: 1476).
- Author
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Abbasnejad, Ahmad
- Subjects
QANATS ,IRRIGATION engineering ,WATER-supply engineering ,CITIES & towns ,HYDRAULIC engineering - Abstract
A reply essay is presented on the rebuttal article by Parise (Environ Earth Sci 75(23):1476, 2016) suggesting that qanat is not a hazard. It is presented as a refutation on the paper by Abbasnejad et al. (Environ Earth Sci 75:1306, 2016) in which the authors have explained the etiology, the impacts and remedies of a qanat hazard in Iranian urban areas. Since the majority of qanats in Iranian urban areas are abandoned, useless and threatening, according to definition and in comparison with similar features introduced as a hazard, they are considered as a hazard too. However, this does not mean, and Abbasnejad et al. (in Environ Earth Sci 75:1306, 2016) have not claimed, that all qanats are hazardous. In addition, the authors who have studied qanats in Iranian urban areas, before Abbasnejad et al. (in Environ Earth Sci 75:1306, 2016), have also considered qanats as a hazard. [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
- View/download PDF
50. Effect of salinity and irrigation regimes on the internode physical variations of rice stem
- Author
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Alizadeh, Mohammad Reza, Dabbaghi, Ali, Rahimi-Ajdadi, Fatemeh, Rezaei, Mojtaba, and Rahmati, Mohammad Hashem
- Published
- 2011
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