Els Efectes del foc en pinedes de la Catalunya central

Authors

  • Alícia Ferran
  • A. Farràs
  • Carles Castell Puig
  • Victoriano Ramón Vallejo Calzada
  • Luis López Soria

Abstract

A representative case of Mediterranean forest strongly affected by fire is described. It corresponds to the wild fire produced in summer 1986 in the area of Jorba (Central Catalonia; NE Spain). Burned and unburned plots have been sampled two years after the fire. The plots have been selected to have similar physiographic characteristics. The soils have lost completely the forest floor layers and surface sealing has appeared; consequently, erosion processes are widespread. Total soil organic carbon losses are 8 t/ha and nitrogen losses are 250 kg/ha. Total phosphorus has increased in 35 kg/ha due to vegetation combustion. Plant regeneration has been poor. Sprouting species have resprouting percentages of 50 % in South-facing slopes. Pinus halepensis germination is very low, whereas the herbaceous vegetation explains most of the measured plant cover, e.g. 50-70 % two years after the fire.

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Published

2005-05-26

Issue

Vol. 59 : 1991 (Secció de Botànica, 8)

Section

Articles

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