Abstract

HERNANDEZ-SALAS, Javier et al. Forest managment effect in diversity and tree composition of a temperate forest in northwestern Mexico. Rev. Chapingo ser. cienc. for. ambient [online]. 2013, vol.19, n.2, pp.189-199. ISSN 2007-4018.  https://doi.org/10.5154/r.rchscfa.2012.08.052.

In the present study, the effect of silvicultural practices in diversity and composition of tree species in a temperate forest in northwestern Mexico was evaluated. Forty six plots were evaluated every 10 years (1986, 1996 and 2006). Indices of alpha and beta diversity of the community of trees, abundance, dominance, frequency and importance value index (IVI) of each species were estimated. The results show that logging changes the diversity and composition of the tree strata. The tree community maintains the number of species, but decreases the Margalef and Shannon-Wiener indices of alpha diversity, and composition was changed in 16 % (beta diversity). Pinus increases its relative abundance, dominance, frequency and IVI, meanwhile Quercus declines. Pinus arizonica and P. durangensis are the species of greater ecological importance.

Keywords : Ecological indicators; Pinus arizonica; ejido El Largo; pine forest; forest harvesting; ecological quality monitoring.

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