Determinación de zonas edafoclimáticas homogéneas para bosques secundarios de Nothofagus dombeyi en el centro-sur de Chile
Determinación de zonas edafoclimáticas homogéneas para bosques secundarios de Nothofagus dombeyi en el centro-sur de Chile
Authors
Authors
Date
2015-07-22
Datos de publicación:
10.4067/S0718-16202013000200010
Keywords
Zonas edafoclimáticas - Nothofagus dombeyi - Bosques - Análisis CART
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Abstract
Nothofagus dombeyi crece en una amplia variedad de sitios en Chile (30-47 ° S), por ello existe escaso conocimiento sobre su potencial productivo. Esto dificulta la toma de decisiones que orienten de mejor forma la producción de bienes y servicios de estos bosques. Este estudio se llevó a cabo en el centro-sur de Chile (39° S-41° S), donde esta especie es prominente, especialmente en bosques secundarios. El estudio tuvo como objetivo determinar zonas edafoclimáticas homogéneas para los bosques secundarios de N. dombeyi, basado en la integración de factores biofísicos. Los enfoques metodológicos consideraron análisis espacial y construcción de coberturas geográficas por medio de sistemas de información geográfica, análisis multivariado de componentes principales y técnicas de agrupamiento con análisis CART. Fue posible determinar cinco zonas homogéneas para N. dombeyi con un alto nivel de precisión. La distribución espacial de la especie se explicó en orden decreciente por los factores biofísicos clima, suelo y topografía.
Nothofagus dombeyi grows in a wide variety of sites in Chile (30-47°S), but there is little knowledge about its productive potential. This lack of information hinders decision-making to better guide the production of goods and services from these forests. This study was conducted in central-southern Chile (39°S-41°S), where this species is prominent, especially in secondary forests. The aim of the study was to determine the homogeneous edaphoclimatic zones for secondary forests of N. dombeyi based on the integration of environmental factors. The methodological approaches considered the spatial analysis and construction of geographic covers using geographic information systems, principal components multivariate analysis, and clustering techniques with CART analysis. Five homogeneous zones could be determined for N. dombeyi with a high level of accuracy. The spatial distribution of N. dombeyi secondary forests was explained in decreasing order by climate, soil and topography.
Nothofagus dombeyi grows in a wide variety of sites in Chile (30-47°S), but there is little knowledge about its productive potential. This lack of information hinders decision-making to better guide the production of goods and services from these forests. This study was conducted in central-southern Chile (39°S-41°S), where this species is prominent, especially in secondary forests. The aim of the study was to determine the homogeneous edaphoclimatic zones for secondary forests of N. dombeyi based on the integration of environmental factors. The methodological approaches considered the spatial analysis and construction of geographic covers using geographic information systems, principal components multivariate analysis, and clustering techniques with CART analysis. Five homogeneous zones could be determined for N. dombeyi with a high level of accuracy. The spatial distribution of N. dombeyi secondary forests was explained in decreasing order by climate, soil and topography.