Reclamation of Salt-Affected Land: A Review
Reclamation of salt-affected soil has been identified by the FAO as being critical to meet the needs to increase agricultural productivity. This paper reviews commonly used reclamation methods for salt-affected soils, and provides critical identifiers for an effective reclamation practice of salt-af...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-07-01
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| Series: | Soil Systems |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2571-8789/6/3/61 |
| _version_ | 1827656589749780480 |
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| author | Mandana Shaygan Thomas Baumgartl |
| author_facet | Mandana Shaygan Thomas Baumgartl |
| author_sort | Mandana Shaygan |
| collection | DOAJ |
| description | Reclamation of salt-affected soil has been identified by the FAO as being critical to meet the needs to increase agricultural productivity. This paper reviews commonly used reclamation methods for salt-affected soils, and provides critical identifiers for an effective reclamation practice of salt-affected soil. There are widely used methods to reduce salinity and sodicity of salt-affected soils, including salt leaching, addition of amendments, revegetation using halophytes and salt scrapping. Not all reclamation techniques are suitable for salt-affected land. The reclamation strategy must be tailored to the site, and based on understanding the soil, plant and climate interactions. On some occasions, a combination of techniques may be required for reclamation. This can include salt scrapping to remove salts from the surface soil, the addition of physical amendments to improve soil pore systems and enhance salt leaching, followed by amelioration of soil by chemical amendments to preserve soil physical conditions, and then halophyte establishment to expand the desalinization zone. This study reveals that soil hydro-geochemical models are effective predictive tools to ascertain the best reclamation practice tailored to salt-affected land. However, models need to be calibrated and validated to the conditions of the land before being applied as a tool to combat soil salinity. |
| first_indexed | 2024-03-09T22:30:31Z |
| format | Article |
| id | doaj.art-05208e76dc3c4f2b8e83c60ab1cf6568 |
| institution | Directory Open Access Journal |
| issn | 2571-8789 |
| language | English |
| last_indexed | 2024-03-09T22:30:31Z |
| publishDate | 2022-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Soil Systems |
| spelling | doaj.art-05208e76dc3c4f2b8e83c60ab1cf65682023-11-23T18:56:38ZengMDPI AGSoil Systems2571-87892022-07-01636110.3390/soilsystems6030061Reclamation of Salt-Affected Land: A ReviewMandana Shaygan0Thomas Baumgartl1Centre for Water in the Minerals Industry, The University of Queensland, Brisbane, QLD 4072, AustraliaGeotechnical and Hydrological Engineering Research Group, Federation University, Churchill, VIC 3841, AustraliaReclamation of salt-affected soil has been identified by the FAO as being critical to meet the needs to increase agricultural productivity. This paper reviews commonly used reclamation methods for salt-affected soils, and provides critical identifiers for an effective reclamation practice of salt-affected soil. There are widely used methods to reduce salinity and sodicity of salt-affected soils, including salt leaching, addition of amendments, revegetation using halophytes and salt scrapping. Not all reclamation techniques are suitable for salt-affected land. The reclamation strategy must be tailored to the site, and based on understanding the soil, plant and climate interactions. On some occasions, a combination of techniques may be required for reclamation. This can include salt scrapping to remove salts from the surface soil, the addition of physical amendments to improve soil pore systems and enhance salt leaching, followed by amelioration of soil by chemical amendments to preserve soil physical conditions, and then halophyte establishment to expand the desalinization zone. This study reveals that soil hydro-geochemical models are effective predictive tools to ascertain the best reclamation practice tailored to salt-affected land. However, models need to be calibrated and validated to the conditions of the land before being applied as a tool to combat soil salinity.https://www.mdpi.com/2571-8789/6/3/61chemical soil amendmentsphysical soil amendmentsmodellingsalt leachingsalt scrappingsoil ripping |
| spellingShingle | Mandana Shaygan Thomas Baumgartl Reclamation of Salt-Affected Land: A Review Soil Systems chemical soil amendments physical soil amendments modelling salt leaching salt scrapping soil ripping |
| title | Reclamation of Salt-Affected Land: A Review |
| title_full | Reclamation of Salt-Affected Land: A Review |
| title_fullStr | Reclamation of Salt-Affected Land: A Review |
| title_full_unstemmed | Reclamation of Salt-Affected Land: A Review |
| title_short | Reclamation of Salt-Affected Land: A Review |
| title_sort | reclamation of salt affected land a review |
| topic | chemical soil amendments physical soil amendments modelling salt leaching salt scrapping soil ripping |
| url | https://www.mdpi.com/2571-8789/6/3/61 |
| work_keys_str_mv | AT mandanashaygan reclamationofsaltaffectedlandareview AT thomasbaumgartl reclamationofsaltaffectedlandareview |