A wind-tunnel study on saltation and PM10 emission from agricultural soils
PM10 emission depends on the texture and the aggregation state of a soil. A decisive but less studied factor is the saltation fraction of the soil (fraction between 100 and 500 μm). Six soils of contrasting textures were selected, and a wind tunnel study was carried out under three different saltati...
| Main Authors: | , , |
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| Format: | Artículo |
| Language: | Inglés |
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Elsevier
2018
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| Online Access: | http://hdl.handle.net/20.500.12123/3849 https://www.sciencedirect.com/science/article/pii/S1875963715300112?via%3Dihub https://doi.org/10.1016/j.aeolia.2016.06.003 |
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| author | Avecilla, Fernando Panebianco, Juan Esteban Buschiazzo, Daniel Eduardo |
| author_browse | Avecilla, Fernando Buschiazzo, Daniel Eduardo Panebianco, Juan Esteban |
| author_facet | Avecilla, Fernando Panebianco, Juan Esteban Buschiazzo, Daniel Eduardo |
| author_sort | Avecilla, Fernando |
| collection | INTA Digital |
| description | PM10 emission depends on the texture and the aggregation state of a soil. A decisive but less studied factor is the saltation fraction of the soil (fraction between 100 and 500 μm). Six soils of contrasting textures were selected, and a wind tunnel study was carried out under three different saltation conditions: increased saltation, in which a sample of the saltation fraction was added to the air stream prior to the soil bed; no saltation added, in which the soil bed eroded without the addition of extra saltation fraction; and only saltation, in which the saltation fraction was injected into the air stream in the absence of the soil bed. Results indicated that the saltation efficiency for PM10 emission increased with the fine fraction content of the soil and decreased with the sand content, but this process showed a complex behavior depending on the cohesion and stability of the aggregates. An index for describing the saltation efficiency of the studied soils was proposed based on the combination of three parameters: the PM10 content, the amount of saltation fraction available in the soil surface, and an aggregation parameter (clay × organic matter content). Increasing the saltation rate increased the PM10 emission from the eroding soil bed, except for the sandy soil. Results suggest that the main mechanisms of PM10 emission under saltation conditions differ according to the soil texture: detachment of the PM10 adhered to the grains of sand predominates on sandy soils and fragmentation on finer soils, but both processes occur together on high-emitting soils of intermediate textures. |
| format | Artículo |
| id | INTA3849 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | INTA38492018-11-09T14:21:50Z A wind-tunnel study on saltation and PM10 emission from agricultural soils Avecilla, Fernando Panebianco, Juan Esteban Buschiazzo, Daniel Eduardo Dust Agricultural Soils Polvo Suelos Agrícolas Dust Emission PM10 Saltation Efficiency Particulate Matter PM10 emission depends on the texture and the aggregation state of a soil. A decisive but less studied factor is the saltation fraction of the soil (fraction between 100 and 500 μm). Six soils of contrasting textures were selected, and a wind tunnel study was carried out under three different saltation conditions: increased saltation, in which a sample of the saltation fraction was added to the air stream prior to the soil bed; no saltation added, in which the soil bed eroded without the addition of extra saltation fraction; and only saltation, in which the saltation fraction was injected into the air stream in the absence of the soil bed. Results indicated that the saltation efficiency for PM10 emission increased with the fine fraction content of the soil and decreased with the sand content, but this process showed a complex behavior depending on the cohesion and stability of the aggregates. An index for describing the saltation efficiency of the studied soils was proposed based on the combination of three parameters: the PM10 content, the amount of saltation fraction available in the soil surface, and an aggregation parameter (clay × organic matter content). Increasing the saltation rate increased the PM10 emission from the eroding soil bed, except for the sandy soil. Results suggest that the main mechanisms of PM10 emission under saltation conditions differ according to the soil texture: detachment of the PM10 adhered to the grains of sand predominates on sandy soils and fragmentation on finer soils, but both processes occur together on high-emitting soils of intermediate textures. EEA Anguil Fil: Avecilla, Fernando. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias de la Tierra y Ambientales de La Pampa. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales. Instituto de Ciencias de la Tierra y Ambientales de La Pampa; Argentina. Fil: Panebianco, Juan Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias de la Tierra y Ambientales de La Pampa. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales. Instituto de Ciencias de la Tierra y Ambientales de La Pampa; Argentina Fil: Buschiazzo, Daniel Eduardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Anguil; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias de la Tierra y Ambientales de La Pampa. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales. Instituto de Ciencias de la Tierra y Ambientales de La Pampa; Argentina 2018-11-09T14:17:30Z 2018-11-09T14:17:30Z 2016-09 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/3849 https://www.sciencedirect.com/science/article/pii/S1875963715300112?via%3Dihub 1875-9637 https://doi.org/10.1016/j.aeolia.2016.06.003 eng info:eu-repo/semantics/restrictedAccess application/pdf Elsevier Aeolian research 22 : 73-83. (September 2016) |
| spellingShingle | Dust Agricultural Soils Polvo Suelos Agrícolas Dust Emission PM10 Saltation Efficiency Particulate Matter Avecilla, Fernando Panebianco, Juan Esteban Buschiazzo, Daniel Eduardo A wind-tunnel study on saltation and PM10 emission from agricultural soils |
| title | A wind-tunnel study on saltation and PM10 emission from agricultural soils |
| title_full | A wind-tunnel study on saltation and PM10 emission from agricultural soils |
| title_fullStr | A wind-tunnel study on saltation and PM10 emission from agricultural soils |
| title_full_unstemmed | A wind-tunnel study on saltation and PM10 emission from agricultural soils |
| title_short | A wind-tunnel study on saltation and PM10 emission from agricultural soils |
| title_sort | wind tunnel study on saltation and pm10 emission from agricultural soils |
| topic | Dust Agricultural Soils Polvo Suelos Agrícolas Dust Emission PM10 Saltation Efficiency Particulate Matter |
| url | http://hdl.handle.net/20.500.12123/3849 https://www.sciencedirect.com/science/article/pii/S1875963715300112?via%3Dihub https://doi.org/10.1016/j.aeolia.2016.06.003 |
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