Resumo

SALAS-GONZALEZ, Raúl  e  FRANCO, Miguel. Seedlings Performance of Two Conifer Species in Disturbed Alpine Areas in Central Mexico. Silva Lus. [online]. 2001, vol.9, n.2, pp.143-159. ISSN 0870-6352.

Growth performance and survival was evaluated for Pinus ayacahuite and Pinus rudis on three disturbed areas in the volcano Ajusco. The pines species were planted in all three areas, including the fir-pine forest. In 1994 and 1998 measurements of the growth and survival were made in 3 000 seedlings in 50 plots of 400 m² each. Comparison of growth and survival of Pinus rudis and Pinus ayacahuite indicated that a large proportion of the variation in these traits was accounted for type of locality, which in turn is a function of the microclimate variation provide by the slope exposures. The lowest values of growth and survival were found in pine forest, which, in comparison to pine-fir forest, is located at higher elevations and unprotected from winter dry winds and frost. The results showed that microclimatic variation has a profound effect in the performance of each species. This study shows the importance of carrying out a careful assessment of the revegetation practices in the region.

Palavras-chave : artificial regeneration; disturbed forest regeneration.

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