Abstract

ORTEGA-BARANDA, V.  and  RODRIGUEZ-TREJO, D. A.. INITIAL SURVIVAL, GROWTH AND NUTRIENT CONCENTRATION OF Pinus hartwegii PLANTED ON BURNED SITES. Rev. Chapingo ser. cienc. for. ambient [online]. 2007, vol.13, n.2, pp.115-124. ISSN 2007-4018.

This work was conducted at the Ajusco volcano, D.F., Mexico, on areas with four prescribed burning treatments (combinations of March and May burns and high and low fire intensity), plus a non burnt control. On these areas were planted Pinus hartwegii seedlings, corresponding to two seedling-qualities: big seedlings and small seedlings. Such seedlings were evaluated after six months, recording survival, diameter, biomass and foliar concentration of nitrogen, phosphorous and potassium. It was found that low intensity March prescribed burns did not affect negatively the tree survival. The trees planted on such treatment had higher biomass. The bigger seedlings had higher potassium foliar concentrations after six months. This last, added to their larger size make them more appropriate for low temperature and moisture limitative environments.

Keywords : forest plantations; reforestation; wildfires; Pinus hartwegii; growth.

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