Biblioteca Digital de VanguardiaDust storms, drought and desertification in the Southwest of Buenos Aires Province, Argentina
The study region is one of the most endangered area from wind erosion in the country. This process, coupled with recurrent droughts in last decades and the mishandling of productive practices have generated desertification. This study presents a review of the interaction of these processes based on...
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias
2016
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| Acceso en línea: | http://bdigital.uncu.edu.ar/8699 |
| _version_ | 1782341920857522176 |
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| author | Abraham, Elena María Guevara, Juan Carlos Candia, Roberto Juan Soria, Nelson Darío |
| author_facet | Abraham, Elena María Guevara, Juan Carlos Candia, Roberto Juan Soria, Nelson Darío |
| author_sort | Abraham, Elena María |
| collection | Repositorio |
| description | The study region is one of the most endangered area from wind erosion in the country.
This process, coupled with recurrent droughts in last decades and the mishandling
of productive practices have generated desertification. This study presents a review
of the interaction of these processes based on literature, field survey and perception
of producers. Recommendations for rehabilitation are proposed. The area covers
6.5 million hectares, hosting in 2002: 550,000 people and 7,825 farms in irrigated and
non-irrigated lands. Irrigated lands are devoted to agricultural production. Non-irrigated
have a mixed production system (beef cattle-wheat). Mean annual rainfall in 1940-2014
was 407 mm. In 60% of these years, rainfall was below the mean. Desertification in the
area is a consequence of drought and mismanagement. In wet cycles, producers increase
stocking rate and wheat-sown area using the same practices of the humid pampa. As a
consequence of dry cycles, land is abandonment and fields covered by sand and invasive
plants. Over 20 cm of soil has blown away and sand accumulates in fences and stays
suspended in the atmosphere, reaching Bahía Blanca city and up to 400 km into the
Atlantic Ocean. The area requires deep structural changes in production systems and
their management. Emphasis should be on sustainable management, which involves a
mentality change of producers and decision makers. Recommendations were made for
cleared and non-cleared lands. |
| format | Artículo |
| id | uncu-8699 |
| institution | Biblioteca Digital - UNCUYO |
| language | Inglés |
| publishDate | 2016 |
| publisher | Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias
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| record_format | ojs |
| spelling | uncu-86992017-05-19T20:09:58Z Dust storms, drought and desertification in the Southwest of Buenos Aires Province, Argentina Tormentas de polvo, sequía y desertificación en el sudoeste de la provincia de Buenos Aires, Argentina Abraham, Elena María Guevara, Juan Carlos Candia, Roberto Juan Soria, Nelson Darío Tormentas de polvo Desertificación Buenos Aires (Argentina : provincia) Erosión eólica Recursos renovables Erosión del suelo Drought Land mismanagement Soil erosion Desertification Dust storms Area recovery The study region is one of the most endangered area from wind erosion in the country. This process, coupled with recurrent droughts in last decades and the mishandling of productive practices have generated desertification. This study presents a review of the interaction of these processes based on literature, field survey and perception of producers. Recommendations for rehabilitation are proposed. The area covers 6.5 million hectares, hosting in 2002: 550,000 people and 7,825 farms in irrigated and non-irrigated lands. Irrigated lands are devoted to agricultural production. Non-irrigated have a mixed production system (beef cattle-wheat). Mean annual rainfall in 1940-2014 was 407 mm. In 60% of these years, rainfall was below the mean. Desertification in the area is a consequence of drought and mismanagement. In wet cycles, producers increase stocking rate and wheat-sown area using the same practices of the humid pampa. As a consequence of dry cycles, land is abandonment and fields covered by sand and invasive plants. Over 20 cm of soil has blown away and sand accumulates in fences and stays suspended in the atmosphere, reaching Bahía Blanca city and up to 400 km into the Atlantic Ocean. The area requires deep structural changes in production systems and their management. Emphasis should be on sustainable management, which involves a mentality change of producers and decision makers. Recommendations were made for cleared and non-cleared lands. La región estudiada es una de las áreas más amenazadas por la erosión del viento en el país. Este proceso, junto con las sequías recurrentes en las últimas décadas y el mal manejo de las prácticas productivas han generado desertificación. Este estudio presenta una revisión de la interacción de estos procesos sobre la base de la bibliografía, el relevamiento de campo y la percepción de los productores. Propone recomendaciones para su rehabilitación. El área cubre 6,5 millones de hectáreas, albergando en 2002 a 550.000 personas y 7.825 explotaciones en tierras irrigadas y no irrigadas. Las tierras irrigadas están dedicadas a la producción agrícola. Las tierras no irrigadas poseen un sistema de producción mixto (bovinos de carne- trigo). La lluvia media anual entre los años 1940 y 2014 fue de 407 mm. En el 60% de los años del período indicado fue menor que la media. La desertificación en el área es una consecuencia de la sequía y el mal manejo. En los ciclos húmedos, los productores incrementan la carga animal y el área sembrada con trigo usando las mismas prácticas de la pampa húmeda. Más de 20 cm de suelo se ha perdido debido a la erosión eólica y la arena se acumula en los alambrados y además permanece suspendida en la atmósfera, avanzando sobre la ciudad de Bahía Blanca y hasta 400 km en el Océano Atlántico. El área requiere cambios estructurales profundos en los sistemas de producción y su manejo. El énfasis debería estar en el manejo sustentable, que involucra un cambio de mentalidad de productores y tomadores de decisiones. Fil: Abraham, Elena María. Instituto Argentino de Investigaciones de las Zonas Áridas <IADIZA> Fil: Guevara, Juan Carlos. Instituto Argentino de Investigaciones de las Zonas Áridas <IADIZA> Fil: Candia, Roberto Juan. Instituto Argentino de Investigaciones de las Zonas Áridas <IADIZA> Fil: Soria, Nelson Darío. Instituto Argentino de Investigaciones de las Zonas Áridas <IADIZA> Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias 78 Revista de la Facultad de Ciencias Agrarias Vol. 48, no. 2 Revista de la Facultad de Ciencias Agrarias, Vol. 48, no. 2 2016-12-01 eng Inglés http://bdigital.uncu.edu.ar/8410 info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar/ article info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias http://bdigital.uncu.edu.ar/8699 |
| spellingShingle | Tormentas de polvo Desertificación Buenos Aires (Argentina : provincia) Erosión eólica Recursos renovables Erosión del suelo Drought Land mismanagement Soil erosion Desertification Dust storms Area recovery Abraham, Elena María Guevara, Juan Carlos Candia, Roberto Juan Soria, Nelson Darío Dust storms, drought and desertification in the Southwest of Buenos Aires Province, Argentina |
| title | Dust storms, drought and desertification in the Southwest of Buenos Aires Province, Argentina
|
| title_full | Dust storms, drought and desertification in the Southwest of Buenos Aires Province, Argentina
|
| title_fullStr | Dust storms, drought and desertification in the Southwest of Buenos Aires Province, Argentina
|
| title_full_unstemmed | Dust storms, drought and desertification in the Southwest of Buenos Aires Province, Argentina
|
| title_short | Dust storms, drought and desertification in the Southwest of Buenos Aires Province, Argentina
|
| title_sort | dust storms, drought and desertification in the southwest of buenos aires province, argentina |
| topic | Tormentas de polvo Desertificación Buenos Aires (Argentina : provincia) Erosión eólica Recursos renovables Erosión del suelo Drought Land mismanagement Soil erosion Desertification Dust storms Area recovery |
| url | http://bdigital.uncu.edu.ar/8699 |