Abstract
The short-term effects of wildfire on the characteristics of Mediterranean pine forest soils, exposed to semiarid climatic conditions, were evaluated by measuring different chemical, biochemical and microbiological parameters 9 months after the fire. Soils in which the fire had been intense showed higher electrical conductivity values than unburnt soils. All burnt soils had higher contents of nitrates, exchangeable NH4 + and available P and K while their contents of total organic C, extractable C, humic acids, water-soluble C and total and water-soluble carbohydrates were, in general, lower than those of unburnt soils. Microbial biomass-C in burnt soils represented from 50% to 79% of that of unburnt soils; basal respiration and dehydrogenase activity were also negatively affected by fire. In general, fire decreased urease and N-α-benzoyl-l-argininamide hydrolysing protease activities. Alkaline phosphatase activity in burnt soils was 29–87% that of the respective unburnt control soil. Arylsulphatase activity was also lower in burnt soils as was β-glucosidase activity, although in this case the differences from values of unburnt soils were not always statistically significant.
Similar content being viewed by others
Author information
Authors and Affiliations
Additional information
Received: 15 July 1996
Rights and permissions
About this article
Cite this article
Hernández, T., García, C. & Reinhardt, I. Short-term effect of wildfire on the chemical, biochemical and microbiological properties of Mediterranean pine forest soils. Biol Fertil Soils 25, 109–116 (1997). https://doi.org/10.1007/s003740050289
Issue Date:
DOI: https://doi.org/10.1007/s003740050289