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Design and management guidelines for contour basin irrigation layouts used in southeast Australia

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Title Design and management guidelines for contour basin irrigation layouts used in southeast Australia
Not Available
 
Creator Khanna, M.
Malano, H. M
Fenton, J. D
Turral, H
 
Subject Contour basin irrigation layouts; Design and management guidelines
 
Description Not Available
Contour basin irrigation layouts are used in Australia for sequential cultivation of rice and other
crops on soils with low infiltration rates. Multiple interconnected basins through gates installed in the
check banks and backflow at the inlet end are unique features of contour basin layouts used in
southeast Australia. Design and management guidelines were developed using a two-dimensional
computer simulation model (COBASIM) for contour basin layouts. The computer model was used to
simulate and analyse the performance of single- and multiple-basin layouts in response to key design
variables including aspect ratio, inflow rates, microtopography, vertical interval between basins and
number of interconnecting drainage outlets. The main aim of this study was to provide designers and
practitioners with an overall view of the likely impact trends arising from variations in key design
factors and to improve design practices. Irrigation performance was measured by the time of advance
needed to cover the entire basin area, application efficiency, water requirement efficiency and
distribution uniformity. The study revealed that the aspect ratio and local microtopography have a
significant impact on the performance in these layouts. A mild slope in the advance direction can
improve performance when a small depth of irrigation is required, while there are no significant
benefits from increasing the elevation difference between adjacent basins
Not Available
 
Date 2024-04-24T12:21:24Z
2024-04-24T12:21:24Z
2003-01-06
 
Type Book
Journal
Research Paper
 
Identifier Khanna, M., Malano, H. M., Fenton, J. D and Turral, H (2003). "Design and management guidelines for contour basin irrigation layouts used in southeast Australia." Agril. Water Mangt. 62(1): 19-35
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/82347
 
Language English
 
Relation Not Available;
 
Publisher Elsevier