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Revista Chapingo serie ciencias forestales y del ambiente

On-line version ISSN 2007-4018Print version ISSN 2007-3828

Abstract

CORTES-CABRERA, Héctor E. et al. Effect of fire and elevation on the regeneration of Pinus hartwegii Lindl. in northeastern Mexico. Rev. Chapingo ser. cienc. for. ambient [online]. 2018, vol.24, n.2, pp.197-205. ISSN 2007-4018.  http://dx.doi.org/10.5154/r.rchscfa.2017.09.057.

Introduction:

Fire regimes and climate change affect the regeneration of vegetation, composition and abundance of the species.

Objectives:

To compare P. hartwegii regeneration and the number of trees with fire scars at different elevations; and determine whether regeneration is related to the density of adult trees and to the density of pine trees with fire evidence.

Materials and methods:

P. hartwegii regeneration was studied at the altitudinal ranges 3 050, 3 225 and 3 400 m in the mountain El Potosí located in northeastern Mexico. Adult trees were sampled using the point-centered quarter method and saplings on square plots.

Results and discussion:

Density of adult pine trees and seedlings was higher at the low elevations (3 050 and 3 225 m). Density of pine trees with fire scars was similar (P > 0.05) at the three elevations. No correlation was detected between regeneration and number of pine trees with fire scars, but there was a positive correlation between density of seedlings and that of adult pines

Conclusion:

Altitude influences regeneration and density of P. hartwegii adult trees. Its regeneration is not related to fire evidence.

Keywords : density of pine trees; fire scars; altitudinal migration; El Potosí mountain.

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