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dc.contributor.author
Camussi, Germán F.
dc.contributor.author
Imhoff, Silvia del Carmen
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dc.contributor.author
Antille, Diogenes L.
dc.contributor.author
Marano, Roberto P.
dc.date.available
2023-09-05T15:08:45Z
dc.date.issued
2022-05
dc.identifier.citation
Camussi, Germán F.; Imhoff, Silvia del Carmen; Antille, Diogenes L.; Marano, Roberto P.; Hydraulic performance of mole drains and validation of steady-state drainage spacing equations for Mollisols; Elsevier Science; Soil & Tillage Research; 223; 5-2022; 1-10
dc.identifier.issn
0167-1987
dc.identifier.uri
http://hdl.handle.net/11336/210579
dc.description.abstract
Central Santa Fe (Argentina) is a low-gradient region with impaired natural drainage. Extreme rainfall events are increasingly common and cause significant economic losses to agriculture. There is a growing interest in the use of mole drainage as a cost-effective strategy to mitigate such impacts. However, there is no information available that assists with mole drainage design, installation and maintenance, or the field assessment of a system's hydraulic performance. This work was conducted with the dual objective of evaluating the hydraulic performance of an existing mole drains system and validating Hooghoudt's steady-state drainage spacing equation for Mollisols. Three treatments representing different hydrologic conditions were tested; namely: (T1) rainfall of 360-min duration and intensity of 23 mm h-1, (T2) surface water ponding achieved through rainfall intensity of 50 mm h-1 and water depths between 50 and 100 mm, and (T3) similar surface water ponding conditions to treatment T2, but achieved through a rainfall intensity of 65 mm h-1 and either one (T3A) or two (T3B) sequential rainfall events. Following application of water, drainage commenced at 270 and 21 min for T1 and T2, and at 40 and 30 min for T3A and T3B, respectively. Mean drained depths were 1 and 3 mm for T1 and T2, respectively. For T3A, the mean drained depth was about one-third that measured for T3B (2.5 vs. 8.5 mm). Under a dry antecedent soil moisture condition, and rainfall intensity of 23 mm h-1, downward water movement was better described by piston flow. As surface water depth and soil water content increased, water flowed preferentially through the fissures and leg slots created by the mole plough implement at installation. Soil fissuring increased field hydraulic conductivity by factors between approximately three and ten. A 4 m mole drains spacing system was considered to be appropriate for managing excess water in the studied soil type. If the contribution of soil fissures to the field hydraulic conductivity can be accounted for, the Hooghoudt's equation applied to two-layered soils may be used with confidence to help optimise the design of mole drainage systems for Mollisols. Application of this numerical approach, however, will require that the resultant spacing between mole drains be increased by about 30–40 %. Such an allowance will reduce installation costs and will not compromise the hydraulic efficiency of the drainage system.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ARGIUDOLL
dc.subject
HOOGHOUDT EQUATION
dc.subject
HYDRAULIC CONDUCTIVITY
dc.subject
MATRIX FLOW
dc.subject
MOLE CHANNEL STABILITY
dc.subject
PREFERENTIAL FLOW
dc.subject.classification
Ciencias del Suelo
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dc.subject.classification
Agricultura, Silvicultura y Pesca
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dc.subject.classification
CIENCIAS AGRÍCOLAS
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dc.title
Hydraulic performance of mole drains and validation of steady-state drainage spacing equations for Mollisols
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-08-08T13:33:01Z
dc.journal.volume
223
dc.journal.pagination
1-10
dc.journal.pais
Países Bajos
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dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Camussi, Germán F.. Universidad Nacional del Litoral. Facultad de Ciencias Agrarias; Argentina
dc.description.fil
Fil: Imhoff, Silvia del Carmen. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Instituto de Ciencias Agropecuarias del Litoral. - Universidad Nacional del Litoral. Instituto de Ciencias Agropecuarias del Litoral.; Argentina
dc.description.fil
Fil: Antille, Diogenes L.. No especifíca;
dc.description.fil
Fil: Marano, Roberto P.. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Instituto de Ciencias Agropecuarias del Litoral. - Universidad Nacional del Litoral. Instituto de Ciencias Agropecuarias del Litoral.; Argentina
dc.journal.title
Soil & Tillage Research
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1016/j.still.2022.105448
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