from Part VII - Cloud forest conservation, restoration, and management issues
Published online by Cambridge University Press: 03 May 2011
ABSTRACT
Restoration practices assist in the reversal of ecological degradation of forest remnants and deforested areas. The enormous biodiversity in the cloud forests of central Veracruz, Mexico, poses a challenge to its restoration. The objectives of this study were to determine the ecological restoration potential of native tree species, and to define criteria for matching species to particular site conditions. In 1998, seedlings of Carpinus caroliniana, Fagus grandifolia var. mexicana, Juglans pyriformis, Liquidambar styraciflua, Podocarpus matudae, Quercus acutifolia, and Symplocos coccinea were planted in three forest fragment interiors, three adjacent agricultural fields, and two old-fields. Survival, height and diameter increment were evaluated using analysis of covariance with initial plant age as covariate. Initial age had a significant effect on survival but not on height or diameter increment across all species and sites. In 2004, overall survival was highest in old-field (70%), followed by forest interior (42%), and adjacent field (36%). Juglans, Podocarpus, and Quercus exhibited the greatest survival (62–80%) but intermediate height increase (26–57 cm year−1). Carpinus and Liquidambar showed intermediate survival (50–54%) but high growth rates (45–96 cm year−1). Fagus and Symplocos displayed both low survival (18–20%) and low height increments (13–29 cm year−1). It is concluded that performance of different tree species depends on site disturbance level. Juglans and Quercus have potential to be used in restoration of disturbed areas, Podocarpus in plantation enrichment, and Liquidambar and Carpinus to expand the cloud forest area. […]
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