Vista normal Vista MARC

Deforestation and fragmentation of seasonal tropical forests in the southern Yucatán, Mexico (1990-2006)

Por: Ramírez Delgado, Juan Pablo [autor/a].
Christman, Zachary John [autor/a] | Schmook, Birgit Inge [autor/a].
Tipo de material: Artículo
 en línea Artículo en línea Tema(s): Deforestación | Paisajes fragmentados | Bosques tropicales | Disturbio ecológicoTema(s) en inglés: Deforestation | Fragmented landscapes | Tropical forests | Ecological disturbancesDescriptor(es) geográficos: Yucatán (Península) (México) Nota de acceso: Acceso en línea sin restricciones En: Geocarto International. volumen 29, número 8 (Jan 2014), páginas 822-841. --ISSN: 1010-6049Número de sistema: 53147Resumen:
Inglés

The southern Yucatán (SY) has been recognized as a hotspot of biodiversity with great risk of deforestation. Land change analysis, based on classified Landsat TM and ETM+ satellite imagery (1990, 2000, and 2006), was used to estimate the annual deforestation rates of 141 land management units of the SY, and spatial patterns of forest fragmentation around and within the Calakmul Biosphere Reserve (CBR), which comprises approximately one third of the region. Results indicate a decrease in annual deforestation rates over 1990-2006, from 0.15% year-1 to 0.06% year-1, but with significant sub-regional variations in the quantity and rate of forest loss. Despite a decline in deforestation during this period, there was considerable fragmentation both inside and outside the CBR. While population pressures and the expansion of pasture have caused deforestation across the region, agricultural intensification, diversified income strategies, and reserve conservation may have contributed to reduced forest loss during the study period.

Recurso en línea: http://www.tandfonline.com/doi/pdf/10.1080/10106049.2013.868039
Etiquetas de esta biblioteca: No hay etiquetas de esta biblioteca para este título. Ingresar para agregar etiquetas.
Star ratings
    Valoración media: 0.0 (0 votos)
Existencias
Tipo de ítem Biblioteca actual Colección Signatura Estado Fecha de vencimiento Código de barras
Artículos Biblioteca Electrónica
Recursos en línea (RE)
ECOSUR Recurso digital ECO400531477567

Acceso en línea sin restricciones

The southern Yucatán (SY) has been recognized as a hotspot of biodiversity with great risk of deforestation. Land change analysis, based on classified Landsat TM and ETM+ satellite imagery (1990, 2000, and 2006), was used to estimate the annual deforestation rates of 141 land management units of the SY, and spatial patterns of forest fragmentation around and within the Calakmul Biosphere Reserve (CBR), which comprises approximately one third of the region. Results indicate a decrease in annual deforestation rates over 1990-2006, from 0.15% year-1 to 0.06% year-1, but with significant sub-regional variations in the quantity and rate of forest loss. Despite a decline in deforestation during this period, there was considerable fragmentation both inside and outside the CBR. While population pressures and the expansion of pasture have caused deforestation across the region, agricultural intensification, diversified income strategies, and reserve conservation may have contributed to reduced forest loss during the study period. eng

Disponible en línea

Adobe Acrobat profesional 6.0 o superior

Con tecnología Koha