Natural forest management in the tr

Natural forest management in the tropics is often limited todiameter-limit selection harvesting systems. Harvests tend toconcentrate on a relatively small number of species, leading toconsiderable reductions in populations of commercial species.Post-harvest treatments that remove undesirable non-commercialtrees (i.e., liberation and refinement) can improve standquality, enhance growth and survival of residual commercialtrees, and stimulate regeneration (Forget et al., 2001; Smithet al., 1997; Pariona et al., 2003). Studies in secondary forests ofCosta Rica (Hutchinson, 1986; Guariguata, 1999), in selectivelyharvested forests of Costa Rica (Camacho and Finegan,

Natural Forest Management in the Tropics is often Limited to
Diameter-Limit selection harvesting Systems. Harvests tend to
Concentrate on a relatively Small Number of species, leading to
considerable reductions in populations of Commercial species.
Post-Harvest treatments that Remove undesirable non-Commercial
Trees (IE, liberation and refinement) Can improve stand
quality, Enhance growth and Survival of. Commercial residual
Trees, and stimulate regeneration (Forget et al., 2001; Smith
et al., in 1997; Pariona et al., in 2003). Studies in Secondary forests of
Costa Rica (Hutchinson, 1,986; Guariguata, 1 999), in Selectively
harvested forests of Costa Rica (Finegan and Camacho,.

Natural forest management in the tropics is often limited to.Diameter-limit selection harvesting systems. Harvests tend to.Concentrate on a relatively small number of species leading to,,Considerable reductions in populations of commercial species.Post-harvest treatments that remove undesirable non-commercial.Trees (i.e, liberation and refinement) can improve stand.Quality enhance growth, and survival of residual commercial.Trees and stimulate, regeneration (Forget et al, 2001; Smith.Et al, 1997; Pariona et al, 2003). Studies in secondary forests of.Costa Rica (,;, Hutchinson 1986 Guariguata 1999), in selectively.Harvested forests of Costa Rica (Camacho, and Finegan