Avance de la frontera urbana a expensas de bosques nativos en diferentes categorías de protección en el valle de Traslasierra, Córdoba (Argentina)
; Alaggia, Francisco Guillermo
; López, Dardo Rubén Otros responsables
Fecha
03/2024
Editorial
Sociedad Argentina de Botánica
Revista
Boletín de la Sociedad Argentina de Botánica
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Institución organizadora
ISSN
0373-580X
eISSN
1851-2372
ISBN
Idioma
Español
Tipo del evento
Clasificación temática
Palabras clave
Resumen
Introducción y objetivos: El avance de la frontera urbana ha causado la pérdida de ecosistemas naturales. En el sector serrano del valle de Traslasierra (Córdoba, centro de Argentina), la población aumentó en los últimos años por lo que en este trabajo analizamos el avance de la urbanización en relación a la vegetación nativa, la fragilidad ambiental y la categoría de conservación según la Ley 26.331 (“Ley de bosques”) en dos municipios: Villa de Las Rosas (VLR) y San Javier-Yacanto (SJY). M&M: A través de imágenes satelitales georreferenciamos todas las edificaciones previas y posteriores a la sanción de la Ley de bosques para VLR y SJY. Además, analizamos el tipo de vegetación, la proximidad a cursos/cuerpos de agua, la pendiente del terreno y la categoría de conservación en la que se ubicaron las edificaciones que aparecieron hasta 15 años después de la promulgación de la Ley de bosques. Resultados: En ambos municipios el número de edificaciones se duplicó durante el período de estudio. Más del 80% de las edificaciones avanzó sobre comunidades boscosas, menos del 15% se ubicaron en la ribera de cursos/cuerpos de agua, y más de la mitad se localizó en terrenos inclinados o muy inclinados. Finalmente, la proporción de construcciones ubicadas en áreas de alto valor de conservación se incrementó luego de la promulgación de la Ley de bosques. Conclusiones: El avance de la urbanización sobre los bosques nativos podría deberse a la escasa regulación a nivel municipal sobre usos del suelo, a la promoción del turismo, y a la migración urbano-rural.
Background and aims: The advance of the urban frontier has caused the loss of natural ecosystems. In the mountain sector of Traslasierra (Córdoba, central Argentina), the population has increased in recent years. In this work, we analyzed the advance of urbanization in Villa de Las Rosas (VLR) and San Javier-Yacanto (SJY) towns concerning their impact on native vegetation, environmental fragility and conservation category according to Law 26,331 (“Forests Law”). M&M: Through satellite images we georeferenced all buildings before and after the promulgation of the Forests Law for VLR and SJY. Then, we analyzed the type of vegetation, the proximity to water courses/bodies, the terrain slope and the forest conservation category in which were located the buildings that appeared until 15 years after the promulgation of the Forests Law. Results: In both towns the number of buildings doubled during the study period. More than 80% of buildings advanced at the expense of native forests; less than 15% were located on the banks of water courses/bodies, while more than a half of them were located on sloping or very sloping terrain. The proportion of buildings located in areas of high conservation value increased after the promulgation of Forests Law. Conclusions: Urbanization advance at the expense of native forests could be due to the scarce regulation about land use at the municipal level, to tourism promotion policies, and to urban-rural migration.
Background and aims: The advance of the urban frontier has caused the loss of natural ecosystems. In the mountain sector of Traslasierra (Córdoba, central Argentina), the population has increased in recent years. In this work, we analyzed the advance of urbanization in Villa de Las Rosas (VLR) and San Javier-Yacanto (SJY) towns concerning their impact on native vegetation, environmental fragility and conservation category according to Law 26,331 (“Forests Law”). M&M: Through satellite images we georeferenced all buildings before and after the promulgation of the Forests Law for VLR and SJY. Then, we analyzed the type of vegetation, the proximity to water courses/bodies, the terrain slope and the forest conservation category in which were located the buildings that appeared until 15 years after the promulgation of the Forests Law. Results: In both towns the number of buildings doubled during the study period. More than 80% of buildings advanced at the expense of native forests; less than 15% were located on the banks of water courses/bodies, while more than a half of them were located on sloping or very sloping terrain. The proportion of buildings located in areas of high conservation value increased after the promulgation of Forests Law. Conclusions: Urbanization advance at the expense of native forests could be due to the scarce regulation about land use at the municipal level, to tourism promotion policies, and to urban-rural migration.
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