Subsurface Lateral Flow in Texture-Contrast (Duplex) Soils and Catchments with Shallow Bedrock
Development-perched watertables and subsurface lateral flows in texture-contrast soils (duplex) are commonly believed to occur as a consequence of the hydraulic discontinuity between the A and B soil horizons. However, in catchments containing shallow bedrock, subsurface lateral flows result from a...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | Applied and Environmental Soil Science |
| Online Access: | http://dx.doi.org/10.1155/2012/861358 |
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| _version_ | 1832560620449300480 |
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| author | Marcus A. Hardie Richard B. Doyle William E. Cotching Shaun Lisson |
| author_facet | Marcus A. Hardie Richard B. Doyle William E. Cotching Shaun Lisson |
| author_sort | Marcus A. Hardie |
| collection | DOAJ |
| description | Development-perched watertables and subsurface lateral flows in texture-contrast soils (duplex) are commonly believed to occur as a consequence of the hydraulic discontinuity between the A and B soil horizons. However, in catchments containing shallow bedrock, subsurface lateral flows result from a combination of preferential flow from the soil surface to the soil—bedrock interface, undulations in the bedrock topography, lateral flow through macropore networks at the soil—bedrock interface, and the influence of antecedent soil moisture on macropore connectivity. Review of literature indicates that some of these processes may also be involved in the development of subsurface lateral flow in texture contrast soils. However, the extent to which these mechanisms can be applied to texture contrast soils requires further field studies. Improved process understanding is required for modelling subsurface lateral flows in order to improve the management of waterlogging, drainage, salinity, and offsite agrochemicals movement. |
| format | Article |
| id | doaj-art-bc75dc9c000c46cbb810384d8dd2f94b |
| institution | Kabale University |
| issn | 1687-7667 1687-7675 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Applied and Environmental Soil Science |
| spelling | doaj-art-bc75dc9c000c46cbb810384d8dd2f94b2025-02-03T01:27:11ZengWileyApplied and Environmental Soil Science1687-76671687-76752012-01-01201210.1155/2012/861358861358Subsurface Lateral Flow in Texture-Contrast (Duplex) Soils and Catchments with Shallow BedrockMarcus A. Hardie0Richard B. Doyle1William E. Cotching2Shaun Lisson3Tasmanian Institute of Agricultural, University of Tasmania, PB 98, Hobart, TAS 7001, AustraliaTasmanian Institute of Agricultural, University of Tasmania, PB 98, Hobart, TAS 7001, AustraliaDepartment of Primary Industries, Parks, Water and Environment (DPIPWE), GPO Box 44, Hobart, TAS 7001, AustraliaCSIRO Sustainable Ecosystems, University of Tasmania, PB 98, Hobart, TAS 7001, AustraliaDevelopment-perched watertables and subsurface lateral flows in texture-contrast soils (duplex) are commonly believed to occur as a consequence of the hydraulic discontinuity between the A and B soil horizons. However, in catchments containing shallow bedrock, subsurface lateral flows result from a combination of preferential flow from the soil surface to the soil—bedrock interface, undulations in the bedrock topography, lateral flow through macropore networks at the soil—bedrock interface, and the influence of antecedent soil moisture on macropore connectivity. Review of literature indicates that some of these processes may also be involved in the development of subsurface lateral flow in texture contrast soils. However, the extent to which these mechanisms can be applied to texture contrast soils requires further field studies. Improved process understanding is required for modelling subsurface lateral flows in order to improve the management of waterlogging, drainage, salinity, and offsite agrochemicals movement.http://dx.doi.org/10.1155/2012/861358 |
| spellingShingle | Marcus A. Hardie Richard B. Doyle William E. Cotching Shaun Lisson Subsurface Lateral Flow in Texture-Contrast (Duplex) Soils and Catchments with Shallow Bedrock Applied and Environmental Soil Science |
| title | Subsurface Lateral Flow in Texture-Contrast (Duplex) Soils and Catchments with Shallow Bedrock |
| title_full | Subsurface Lateral Flow in Texture-Contrast (Duplex) Soils and Catchments with Shallow Bedrock |
| title_fullStr | Subsurface Lateral Flow in Texture-Contrast (Duplex) Soils and Catchments with Shallow Bedrock |
| title_full_unstemmed | Subsurface Lateral Flow in Texture-Contrast (Duplex) Soils and Catchments with Shallow Bedrock |
| title_short | Subsurface Lateral Flow in Texture-Contrast (Duplex) Soils and Catchments with Shallow Bedrock |
| title_sort | subsurface lateral flow in texture contrast duplex soils and catchments with shallow bedrock |
| url | http://dx.doi.org/10.1155/2012/861358 |
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