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La expansión de la tala industrial en África Central
Nadine T Laporte1, Jared A Stabach, Robert Grosch
1Woods Hole Research Center, Falmouth, MA 02540, USA. nlaporte@whrc.org
Science (New York, N.Y.)
|June 9, 2007
Resumen
La tala industrial es el uso primario de la tierra en África Central, expandiéndose significativamente con extensas redes de carreteras. Este estudio cuantifica las carreteras de tala e identifica nuevas fronteras de expansión en la República Democrática del Congo.
Área de la Ciencia:
- Ciencias forestales Ciencias forestales.
- La teledetección es la sensorización remota.
- Biología de la conservación Biología de la conservación.
Sus antecedentes:
- La tala industrial es el uso dominante de la tierra en África Central, que afecta a más de 600.000 km2 de bosque.
- Las concesiones forestales cubren el 30% de la región, lo que pone de relieve la escala de las actividades de extracción de madera.
Objetivo del estudio:
- Para cuantificar la extensión y la densidad de las carreteras de tala en los bosques de África Central.
- Identificar las nuevas fronteras de la expansión maderera y evaluar su impacto.
- Para analizar patrones de perturbación dentro de áreas registradas selectivamente.
Principales métodos:
- Utilizó una serie temporal de imágenes satelitales de 1976 a 2003.
- Se midieron 51.916 km de nuevas carreteras madereras construidas durante el período de estudio.
- Densidad calculada de carreteras en toda la región boscosa y países específicos.
Principales resultados:
- Se identificaron un total de 51.916 km de nuevas carreteras madereras entre 1976 y 2003.
- La densidad media de las carreteras fue de 0,03 km/km2, con densidades más altas (más de 0,09 km/km2) en Gabón y Guinea Ecuatorial.
- La República Democrática del Congo muestra una nueva frontera de expansión maderera, ya que posee el 63% de los bosques restantes de la región.
- La tala de árboles y las pistas de patinaje aumentaron significativamente la perturbación en las áreas madereras.
Conclusiones:
- La tala industrial ha llevado a un extenso desarrollo de carreteras a través de los bosques de África Central.
- La República Democrática del Congo es un área crítica para la futura expansión maderera y los esfuerzos de conservación de los bosques.
- Las actividades madereras causan perturbaciones forestales significativas más allá de la construcción de carreteras.
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