Design of level-basin irrigation systems for robust performance

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cg.identifier.urlhttp://www.irncid.org/GetFileArticles.aspx?FilePrm=4733_28389.pdfen
cg.identifier.wlethemeLand and Water Productivity
dc.contributor.authorReddy, Junna Mohanen
dc.date.accessioned2014-06-13T11:41:23Zen
dc.date.available2014-06-13T11:41:23Zen
dc.identifier.urihttps://hdl.handle.net/10568/38328
dc.titleDesign of level-basin irrigation systems for robust performanceen
dcterms.abstractLevel-basin irrigation is extensively used in South-Western United States where water is very expensive. A well designed level-basin irrigation system is easy to manage, and has significant potential for achieving higher application efficiency and improved salinity control, particularly when the field is laser-leveled. Over the years, three different criteria have evolved to design level-basin irrigation systems: the volume-balance design criterion proposed by the Soil Conservation Service (SCS) of the United States Department of Agriculture (USDA), the limiting length design criterion, and the completion-of-advance criterion. Each one of these three methods has its own advantages and disadvantages. For achieving higher application efficiency, in addition to proper design, a well-defined irrigation scheduling must be followed so that the soil-moisture deficit at the time of irrigation is close to the design depth of the irrigation system. Otherwise, the actual application efficiency will be different (usually lower) than the design application efficiency, and the actual water requirement efficiency achieved may be significantly different (either under-irrigation or over-irrigation) from the design water requirement efficiency. However, if completion-of-advance design criterion is used, the difference between actual and design efficiencies (application efficiency and water requirement efficiency) kept to a minimum. In addition, the actual performance of a level-basin irrigation system designed using the completion-of-advance criterion would be much closer to the design performance even when the inflow flow rate into level-basins fluctuates. This paper will present the results of a simulation study on the robust performance of level-basin irrigation systems designed using the completion-of-advance criterion.en
dcterms.accessRightsOpen Access
dcterms.bibliographicCitationReddy, Junna Mohan. 2011. Design of level-basin irrigation systems for robust performance. In ICID. 21st Congress on Irrigation and Drainage: Water Productivity towards Food Security, Tehran, Iran, 15-23 October 2011. New Delhi, India: ICID. pp.59-71.en
dcterms.descriptionIn ICID. 21st Congress on Irrigation and Drainage: Water Productivity towards Food Security, Tehran, Iran, 15-23 October 2011. New Delhi, India: ICIDen
dcterms.extentp. 59-71en
dcterms.issued2011
dcterms.languageen
dcterms.subjectbasin irrigationen
dcterms.subjectirrigation systemsen
dcterms.subjectsalinity controlen
dcterms.subjectsoil conservationen
dcterms.subjectsoil moistureen
dcterms.subjectsimulation modelsen
dcterms.typeConference Paper

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