Irrigation Scheduling

Irrigation Scheduling
Author: Food and Agriculture Organization of the United Nations
Publisher: International Commission
Total Pages: 408
Release: 1996
Genre: Technology & Engineering
ISBN:

Irrigation Scheduling in Response to Climate Change

Irrigation Scheduling in Response to Climate Change
Author: Abbas Hadi Farran
Publisher:
Total Pages: 158
Release: 2011
Genre:
ISBN:

Water is a key element in the survival of life on earth. Despite this importance, this valuable resource is being abused; either polluted or wasted. This thesis dealt with water wastage coming from agricultural use, i.e. irrigation. This wastage is the result of poor irrigation scheduling techniques, in addition to the use of inefficient water application systems. The aim of this study was to propose a dynamic, precise, and easy to use,GIS based irrigation scheduling model that could respond to different varying climatic conditions, improving water requirement computation precision. The model developed in this study consists of three parts; the first part involved reference evapotranspiration rate computationusing the FAO-Penman-Monteith CROPWAT software model. The second part dealt with actual crop evapotranspiration rate determination; this task involves correcting the reference evapotranspiration rate, which was determined in the first part. This correction is a function of crop type, stage of growth, in addition to soil parameters; according to the Nimah-Khalouf 1987 model. The third part involved schedule formulation based on the data determined in the preceding two parts. These three parts make up an irrigation scheduling model; this model was integrated into ESRI ArcMap, a GIS software. This integration adds a lot of functionality to the model; flexibility, updatability, ability to create a custom user interface which facilitates user interaction with the model, etc... The developed model was tested for functionality, in addition to responsiveness to climate variability taking Lebanon as a case study; it was found to be responsive to different scenarios of climate variability, fulfilling the objective of this study. Finally, this study resulted in the development of a GIS based irrigation scheduling model that could be further developed to be used in various applications: water requirement determination on regional and/or watershed level, another application would be irrigation requirement extension services, in addition to the ability of producing informative thematic maps.

Irrigation Schedulings

Irrigation Schedulings
Author: Rajanee Sslunkhe
Publisher: LAP Lambert Academic Publishing
Total Pages: 72
Release: 2013
Genre:
ISBN: 9783659431838

As water for irrigation is a scare resource, its optimization is fundamental to water resource use. It permits better utilization of all other production factors and thus leads to increased yields per unit area and time. Irrigation scheduling is the systematic method by which producer can decide on when to irrigate and how much water to apply. In climatologically approaches, irrigation is scheduled on IW/CPE ratio. In IW/CPE approach, known amount of irrigation water is applied when cumulative pan evaporation reaches predetermined level. The experiment was conducted in randomized block design with irrigation scheduling on climatological approach i.e. on IW/CPE ratios of IW/CPE=0.6, IW/CPE=0.8, IW/CPE=1.0, IW/CPE=1.2 and control treatment with six irrigation at critical growth stages of wheat.

Water, Climate Change, and Sustainability

Water, Climate Change, and Sustainability
Author: Vishnu Prasad Pandey
Publisher: John Wiley & Sons
Total Pages: 272
Release: 2021-03-11
Genre: Science
ISBN: 1119564506

An in-depth review of sustainable concepts in water resources management under climate change Climate change continues to intensify existing pressures in water resources management, such as rapid population growth, land use changes, pollution, damming of rivers, and many others. Securing a reliable water supply—critical for achieving Sustainable Development Goals (SDGs)—requires understanding of the relation between finite water resources, climate variability/change, and various elements of sustainability. Water, Climate Change, and Sustainability is a timely and in-depth examination of the concept of sustainability as it relates to water resources management in the context of climate change risks. Featuring contributions by global authors, this edited volume is organized into three sections: Sustainability Concepts; Sustainability Approaches, Tools, and Techniques; and Sustainability in Practice. Detailed chapters describe the linkage between water and sustainable development, highlight the development and use of new measuring and reporting methods, and discuss the implementation of sustainability concepts in various water use sectors. Topics include localizing and mainstreaming global water sustainability initiatives, resilient water infrastructure for poverty reduction, urban water security for sustainable cities, climate actions and challenges for sustainable ecosystem services, and more. This important resource: Reviews contemporary scientific research and practical applications in the areas of water, climate change and sustainability in different regions of the world Discusses future directions of research and practices in relation to expected patterns of climate changes Covers a wide range of concepts, theories, and perspectives of sustainable development of water resources Features case studies of field and modelling techniques for analyzing water resources and evaluating vulnerability, security, and associated risks Discusses practical applications of water resources in contexts such as food security, global health, clean energy, and climate action Water, Climate Change, and Sustainability is an invaluable resource for policy makers water managers, researchers, and other professionals in the field, and an ideal text for graduate students in hydrogeology, climate change, geophysics, geochemistry, geography, water resources, and environmental science.

CROPWAT

CROPWAT
Author: Martin Smith
Publisher: Food & Agriculture Org.
Total Pages: 140
Release: 1992
Genre: Business & Economics
ISBN: 9789251031063

Setting up cropwat: conditions of use and distribution; Installation; File structure. Getting started on cropwat: Main menu; Printer setting; Default drive and path for data input and retrieval. Eto Calculations: Input climatic station; Retrieval of Eto data from disk; Output. Crop water requeriments: Input climate data; Input of crop data; Crop water requirements results; Program continuation. Rice water requirements: Input of rice data from keyboard; Saving of rice data; Retrieval ofrice data from disk; Date of transplanting; Rice irrigation calculations; Rice irrigation output; Program continuation. Irrigation Scheduling: Data input for irrigation scheduling; Irrigation Scheduling options; Irrigation Scheduling calculations; Irrigation Scheduling output; Program continuation. Scheme water supply: Data input; Calculations; Output. Calculation of reference evapotranspiration: Data collection; Data conversion; Climatic data input; Climatic data and Eto output; Climatic and Eto data saving; Processing of rainfall data: Rainfall definitions; Rain data collection; Rain data processing; Effective Rainfall method; Rain data input; Saving climatic data; Printout of climatic data. Cropping pattern and crop information: Data collection; Cropping pattern; Crop data input. Crop water requirement calculations: File input; CWR calculations; CWR field files; Summary of CWR calculations. Scheme and canal water requirements: Calculation procedures; Field file input; Scheme water requirements (SWR) results; Evaluation of SWR results. Irrigation Scheduling: Data input; Soil data collection; Soil datainput; Irrigation scheduling applications.

Irrigation

Irrigation
Author: Sandra Ricart
Publisher: BoD – Books on Demand
Total Pages: 136
Release: 2019-12-18
Genre: Technology & Engineering
ISBN: 1789846765

The management of irrigation systems is context-dependent, socially constructed, and technically uncertain. An example of complex social-ecological systems, irrigation deals with both the ecosystem uncertainty and the implementation of new technological systems and water management options. Issues to be addressed by irrigation systems at the global scale include: water productivity and food security, field operation and maintenance, spate irrigation in climate change scenarios, and vulnerability of environmental resources. This book provides examples of some of the current challenges faced by irrigation systems from technical and social perspectives. The book offers an easy-to-follow format focused on different case studies combining evidence-based solutions for increasing resilience and reducing vulnerability of irrigation systems in semi-arid and arid regions across the world.

Scheduling Irrigations

Scheduling Irrigations
Author: Blaine Hanson
Publisher: UCANR Publications
Total Pages: 220
Release: 2007-01-01
Genre: Technology & Engineering
ISBN: 1601078870

his handy guide will help you schedule your irrigation needs so you can make every drop count. Inside you'll find sections on the relationship between crop evapotranspiration and yield, how to measure crop evapotranspiration by measuring soil moisture, and how to interpret those readings. One of a series of water management handbooks prepared by the University of California Irrigation Program.