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International Journal of Wildland Fire International Journal of Wildland Fire Society
Journal of the International Association of Wildland Fire
RESEARCH ARTICLE

Post-fire recovery of an endemic Canarian pine forest

J. R. Arévalo A E , S. Fernández-Lugo A , A. Naranjo-Cigala B , M. Salas C , R. Ruíz B , R. Ramos B and M. Moreno D
+ Author Affiliations
- Author Affiliations

A Invasive Species: Interinsular Research Group (EIGI), Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias (IUETSPC), Universidad de La Laguna (ULL), Avenida Astrofísico Francisco Sánchez s/n, E-38206 La Laguna, Islas Canarias, Spain.

B Departmento de Geografía, Universidad de Las Palmas de Gran Canaria, E-35003 Las Palmas de Gran Canaria, Islas Canarias, Spain.

C Aula de La Naturaleza, Universidad de Las Palmas de Gran Canaria, E-35017 Las Palmas de Gran Canaria, Islas Canarias, Spain.

D Servicio de Obras Públicas, Cabildo de Gran Canaria, C/ Tomás Morales number 3, E-35003 Las Palmas de Gran Canaria, Islas Canarias, Spain.

E Corresponding author. Email: jarevalo@ull.es

International Journal of Wildland Fire 23(3) 403-409 https://doi.org/10.1071/WF13055
Submitted: 16 October 2012  Accepted: 10 September 2013   Published: 7 March 2014

Abstract

In this study, we analysed the effect of a wildfire that occurred in 2007 in a well-preserved Canarian pine forest located in the ‘Integral Natural Reserve of Inagua’. This reserve has the highest level of protection of the Canarian Network of Natural Protected Areas. In 2009, we established in an area that was affected by fire in the central part of the reserve a grid of quadrats of 500 × 500 m in size. Following the corners of the quadrats, we set up a network of 28 permanent square plots of 25 × 25 m. Ten more plots were randomly located in a surrounding area unaffected by the fire, with similar vegetation and environmental conditions. We monitored the effect of fire on pine regeneration, species composition, soil nutrient composition and forest structure. Results indicate that, 4 years following the fire, the effect on soil nutrients is still evident, with a higher level of organic matter in the burned plots. However, fire effect on species richness and composition was not long lasting, with no significant differences between the burned and control plots. Regarding regeneration, the density of saplings older than 2 years was significantly higher in burned plots. Based on the results, we suggest that fire should not be considered disastrous from an ecological point of view in this plant community. Moreover, the current fire suppression policy and the highly effective work of forest fire fighters can exacerbate the well known ‘fire paradox’.

Additional keywords: CART, DCA, fire paradox, plant community, regeneration, soil.


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