Cited by 109Fire effects on ecosystemsEnvironmental and biological studiesSoil Carbon and Nitrogen Dynamics

Effects of a low severity prescribed fire on water-soluble elements in ash from a cork oak (Quercus suber) forest located in the northeast of the Iberian Peninsula

Pereira, Paulo, Úbeda, Xavier, Martin, Deborah, Mataix-Solera, Jorge, Guerrero, César·2011·Environmental Research

Abstract

Wildfire is the major disturbance in Mediterranean forests. Prescribed fire can be an alternative to reduce the amount of fuel and hence decrease the wildfire risk. However the effects of prescribed fire must be studied, especially on ash properties, because ash is an important nutrient source for ecosystem recovery. The aim of this study is to determine the effects of a low severity prescribed fire on water-soluble elements in ash including pH, electrical conductivity (EC), calcium (Ca), magnesium (Mg), sodium (Na), potassium (K), aluminum (Al), manganese (Mn), iron (Fe), zinc (Zn), silica (SiO(2)) and total sulphur (TS). A prescribed fire was conducted in a cork oak (Quercus suber) (Q.S) forest located in the northeast part of the Iberian Peninsula. Samples were collected from a flat plot of 40×70m mainly composed of Q.S and Quercus robur (Q.R) trees. In order to understand the effects of the prescribed fire on the soluble elements in ash, we conducted our data analysis on three data groups: all samples, only Q.S samples and only Q.R samples. All three sample groups exhibited a significant increase in pH, EC (p<0.001), water-soluble Ca, Mg, Na, SiO(2) and TS and a decrease in water-soluble Mn, Fe and Zn. Differences were identified between oak species for water-soluble K, Al and Fe. In Q.S samples we registered a significant increase in the first two elements p<0.001 and p<0.01, respectively, and a non-significant impact in the third, at p<0.05. In Q.R data we identified a non-significant impact on water-soluble K and Al and a significant decrease in water-soluble Fe (p<0.05). These differences are probably due to vegetation characteristics and burn severity. The fire induced a higher variability in the ash soluble elements, especially in Q.S samples, that at some points burned with higher severity. The increase of pH, EC, Ca, Mg, Na and K will improve soil fertility, mainly in the study area where soils are acidic. The application of this low severity prescribed fire will improve soil nutrient status without causing soil degradation and thus is considered to be a good management strategy.

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Crossref · 10.1016/j.envres.2010.09.002

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Authors
Pereira, P., Úbeda, X., Martin, D., Mataix-Solera, J., & Guerrero, C.
Affiliations
  • Mykolas Romeris University (LT)
  • Universitat de Barcelona (ES)
  • United States Geological Survey (US)
Corresponding author
Pereira, Paulo
Venue
Environmental Research
Publisher
Elsevier BV
Published
2011-02
Volume
111
Issue
2
Pages
237-247
ISSN
0013-9351 (ISSN-L)
OpenAlex
W2034257302
Cited by
109
References
132
Citations by year
2026: 2 · 2025: 10 · 2024: 5 · 2023: 5 · 2022: 3 · 2021: 7 · 2020: 10 · 2019: 8 · 2018: 7 · 2017: 10 · 2016: 11 · 2015: 7 · 2014: 7 · 2013: 10 · 2012: 5
FWCI
4.88
Type
journal article
Language
en
Open access
closed
Locations
  • Environmental Research (publishedVersion)
  • PubMed (publishedVersion)
Funders
Spanish Ministry of Science and Technology (CGL2006-11107-C02-02/BOS)
Topics
  • Physical Sciences › Environmental Science › Global and Planetary Change › Fire effects on ecosystems
  • Physical Sciences › Environmental Science › Ecology › Environmental and biological studies
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Carbon and Nitrogen Dynamics
Keywords
prescribed burning, fire ash, cork oak forests, Quercus suber, Quercus robur, soil fertility, soil nutrients, burn severity, wildfire risk reduction, Mediterranean forests, soil pH, electrical conductivity
MeSH terms
Calcium, Conservation of Natural Resources, Electric Conductivity, Environmental Monitoring, Fires, Hot Temperature, Hydrogen-Ion Concentration, Magnesium, Potassium, Silicon Dioxide, Sodium, Soil Pollutants, Solubility, Spain, Trace Elements, Trees, Volatilization, Metals, Heavy, Quercus

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