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Title: Evaluating a multi-level subsurface drainage system for improved drainage water quality
Contributor(s): Hornbuckle, John (author); Christen, Evan W (author); Faulkner, Richard David  (author)
Publication Date: 2007
DOI: 10.1016/j.agwat.2007.01.004
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Abstract: This paper describes a multi-level drainage system, designed to improve drainage water quality. Results are presented from a field scale land reclamation experiment implemented in the Murrumbidgee Irrigation Area of New South Wales, Australia. A traditional single level drainage system and a multi-level drainage system were compared in the experiment in an irrigated field setting. The single level drainage system consisted of 1.8 m deep drains at 20 m spacing. This configuration is typical of subsurface drainage system design used in the area. The multi-level drainage system consisted of shallow closely spaced drains (3.3 m spacing at 0.75 m depth) underlain by deeper widely spaced drains (20 m spacing at 1.8 m depth). Data on drainage flows and salinity, water table regime and soil salinity were collected over a 2-year period. Comparisons of water and solute movement between the multi-level drainage system and a single level drainage system are presented. Differences in the performance of the multi-level and single level drainage systems were found in the water table regime, drain water salinity and soil salinity.
Publication Type: Journal Article
Source of Publication: Agricultural Water Management, 89(3), p. 208-216
Publisher: Elsevier BV
Place of Publication: Amsterdam, The Netherlands
ISSN: 0378-3774
Field of Research (FOR): 079901 Agricultural Hydrology (Drainage, Flooding, Irrigation, Quality, etc)
Socio-Economic Outcome Codes: 960905 Farmland, Arable Cropland and Permanent Cropland Water Management
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
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