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Solid Earth An interactive open-access journal of the European Geosciences Union
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Volume 6, issue 1
Solid Earth, 6, 243-252, 2015
https://doi.org/10.5194/se-6-243-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Solid Earth, 6, 243-252, 2015
https://doi.org/10.5194/se-6-243-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 20 Feb 2015

Research article | 20 Feb 2015

Soil microbiological properties and enzymatic activities of long-term post-fire recovery in dry and semiarid Aleppo pine (Pinus halepensis M.) forest stands

J. Hedo1, M. E. Lucas-Borja2, C. Wic2, M. Andrés-Abellán2, and J. de Las Heras1 J. Hedo et al.
  • 1Department of Plant Production and Agricultural Technology, School of Advanced Agricultural Engineering, Castilla La Mancha University, Campus Universitario s/n, CP 02071, Albacete, Spain
  • 2Department of Agroforestry Technology and Science and Genetics, School of Advanced Agricultural Engineering, Castilla La Mancha University, Campus Universitario s/n, CP 02071, Albacete, Spain

Abstract. Wildfires affecting forest ecosystems and post-fire silvicultural treatments may cause considerable changes in soil properties. The capacity of different microbial groups to recolonise soil after disturbances is crucial for proper soil functioning. The aim of this work was to investigate some microbial soil properties and enzyme activities in semiarid and dry Aleppo pine (Pinus halepensis M.) forest stands. Different plots affected by a wildfire event 17 years ago without or with post-fire silvicultural treatments 5 years after the fire event were selected. A mature Aleppo pine stand, unaffected by wildfire and not thinned was used as a control. Physicochemical soil properties (soil texture, pH, carbonates, organic matter, electrical conductivity, total N and P), soil enzymes (urease, phosphatase, β-glucosidase and dehydrogenase activities), soil respiration and soil microbial biomass carbon were analysed in the selected forests areas and plots. The main finding was that long time after this fire event produces no differences in the microbiological soil properties and enzyme activities of soil after comparing burned and thinned, burned and not thinned, and mature plots. Moreover, significant site variation was generally seen in soil enzyme activities and microbiological parameters. We conclude that total vegetation recovery normalises post-fire soil microbial parameters, and that wildfire and post-fire silvicultural treatments are not significant factors affecting soil properties after 17 years.

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Soil properties, as well as biochemical, microbiological, and physicochemical properties of an burned Aleppo pine stand had the ability to recover 17 years after fire, showing similar values than a not-burned mature Aleppo pine stand. These properties had also recovered after 12 years of carrying out silvicultural management as thinning.
Soil properties, as well as biochemical, microbiological, and physicochemical properties of an...
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