Effects of different fire severity levels on soil chemical and physical properties in Zagros forests of western Iran

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dc.contributor.authorMehdi, Heydari
dc.contributor.authorAli, Salehi
dc.contributor.authorAli, Mahdavi
dc.contributor.authorMostafa, Adibnejad
dc.contributor.organizationUniversity of Guilan, Natural Resources Faculty, Department of Forestry, Guilan, Iranpl_PL
dc.contributor.organizationUniversity of Ilam, Faculty of Agriculture, Department of Forestry and Rangeland, Ilam, Iranpl_PL
dc.date.accessioned2014-09-24T08:24:16Z
dc.date.available2014-09-24T08:24:16Z
dc.date.issued2012
dc.description.abstractThe study focused on the effect of different intensities of fire on physical and chemical properties of soil in Zagros forests of western Iran. The dominant tree species in these forests is oak (Quercus persica). Three sites were selected; high severity burned site (HS), low severity burned site (LS) and control (not burned) site (C). Soil chemical properties such as: organic matter (OM), the total nitrogen (N), NO3-N, soluble potassium (K), soil phosphorus (P), pH, soil electrical conductivity (EC), cation exchangeable capacity (CEC), base cations (Ca, Mg, Na), CO2 and soil physical properties such as saturation percentage (SP), bulk density (BD), sand, clay and silt percentages were assessed in soil samples. To determine significance of differences among the three observed sites and most effective variables in the separation of sample plots, one-way analysis of variance and principal component analysis were used, respectively. Mean pH, N, NO3- N, OM, SP, P, K, and CEC at HS site were lower than at the sites with other fire intensities but the EC value for HS site was higher in comparison with other sites observed. According to Duncan's test, mean BD value for HS site was higher when compared with other sites but SP value was comparatively lowest. At LS site, mean sand content was lowest and the amount of silt was highest, in comparison with other sites. The results showed that observed fire severities had significant effects on physical and chemical properties of soil, yet fire low severity and control sites were very similar to each other in terms of investigated factors. Therefore, it can be concluded that low-severity fire regime has no significant influence on soil properties. In a management strategy, controlled low-severity fire regime can be an alternative management tool in improving soil conditions.pl_PL
dc.description.epersonPrzemysław Szmit
dc.identifier.otherFolia Forestalia Polonica, series A, 2012, Vol. 54 (4), 241–250
dc.identifier.urihttps://open.icm.edu.pl/handle/123456789/5303
dc.language.isoenpl_PL
dc.publisherInstytut Badawczy Leśnictwa, Komitet Nauk Leśnych PANpl_PL
dc.rightsUznanie autorstwa-Na tych samych warunkach 3.0 Polska
dc.rights.urihttp://creativecommons.org/licenses/by-sa/3.0/pl/
dc.subjectPCApl_PL
dc.subjectZagros forestspl_PL
dc.subjectsoil propertiespl_PL
dc.subjectfire severitypl_PL
dc.titleEffects of different fire severity levels on soil chemical and physical properties in Zagros forests of western Iranpl_PL
dc.typearticlepl_PL
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