- Title
- The effect of soil physical amendments on reclamation of a saline-sodic soil : Simulation of salt leaching using HYDRUS-1D
- Creator
- Shaygan, Mandana; Baumgartl, Thomas; Arnold, Sven; Reading, Lucy
- Date
- 2018
- Type
- Text; Journal article
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/167735
- Identifier
- vital:13707
- Identifier
-
https://doi.org/10.1071/sr18047
- Identifier
- ISBN:1838-675X
- Abstract
- Poor soil physical conditions such as low hydraulic conductivity can limit salt depletion from surface soil. Altering the pore system by addition of organic and inorganic amendments may improve salt leaching as a reclamation strategy. Column studies were conducted to investigate salt leaching in amended and non-amended soil profiles. A one-dimensional water and solute transport model (HYDRUS-1D) was also assessed for its applicability to simulate salt leaching for amendment strategy. Columns of length 300 mm were filled with saline-sodic soil at the lower end (100-300 mm) and then covered with soil amended with 40% (wt/wt) fine sand and 20% (wt/wt) wood chips, separately. A control column was filled with saline-sodic soil only. One rainfall scenario typical for a location in south-west Queensland (Australia) was applied to the columns. Water potentials were monitored using tensiometers installed at three depths: 35, 120 and 250 mm. The concentrations of individual cations (Na
- Publisher
- CSIRO
- Relation
- Soil Research Vol. 56, no. 8 (2018), p. 829-845
- Rights
- Copyright © 2018 CSIRO.
- Rights
- Open Access
- Rights
- This metadata is freely available under a CCO license
- Subject
- MD Multidisciplinary; Fine sand; Soil amendments; Wood chips
- Full Text
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