Riesgo geomorfológico de médanos migrantes:minimización mediante la extracción de áridos en Arenas Verdes, municipio de Lobería (Buenos Aires)
The town of Arenas Verdes is currently the only coastal tourist settlement developed in the Lobería district (Buenos Aires,Argentina). It is located on the Barrera Medanosa Austral, one of the four in the province of Buenos Aires. For a few decades, barjanoid dunes have been advancing towards the ur...
Guardado en:
| Autores principales: | , , , , |
|---|---|
| Formato: | Artículo |
| Lenguaje: | español |
| Publicado: |
2021
|
| Materias: | |
| Acceso en línea: | https://dialnet.unirioja.es/servlet/oaiart?codigo=8797481 |
| Etiquetas: |
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| Sumario: | The town of Arenas Verdes is currently the only coastal tourist settlement developed in the Lobería district (Buenos Aires,Argentina). It is located on the Barrera Medanosa Austral, one of the four in the province of Buenos Aires. For a few decades, barjanoid dunes have been advancing towards the urbanization, obliterating lots and streets. The objective of the work was to provide the municipality with a management tool that will enable it to develop procedures forthe recovery of the land buried by migrant dunes, through a mining policy compatible with active and environmentally sustainable management, and with minimal impact on coastal ecosystems and beach. To achieve this, cartographic and dronestudies were carried out that determined the number of affected properties, as well as the speed of advance of the dune fronts. The wind transport rate was also calculated and the extractable sands were cubed, estimating the maximum extraction rate based on this transport. Finally, management strategies were proposed to prevent the advance of the dunes over urbanization,orienting the activity of the mining industry and, in turn, minimizing adverse anthropic effects on dune ecosystem. It is concluded that in this area there are active prograding dunes that compromise the urban constructions established in thelocality. To avoid this impact, it was proposed that only the leeward faces be exploited, always under strict sustainability criteria. In this way, the useful life of the deposit will be prolonged depending on the capture of the material that is in transit, as long as the mining activity extracts the same amount of sand that enters the system. Due to the long tradition of this activity in the Lobería district, ensuring the availability of sand is very important to supply urban development and local and regional infrastructure. Proper management translates into a rational and sustainable use ofthem, minimizing the risk of loss of environments due to anthropic activity. |
|---|