Effect of wildfires on soil properties of agricultural lands of Mediterranean-climate region in Chile

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dc.contributor.authorGarrido-Ruiz, Claudia
dc.contributor.authorSandoval, Marco
dc.contributor.authorStolpe, Neal
dc.contributor.authorSanchez-Hernandez, Juan C.
dc.contributor.authorCampos M., Cristóbal
dc.coverageChilees_ES
dc.date.accessioned2023-12-27T20:08:17Z
dc.date.available2023-12-27T20:08:17Z
dc.date.issued2023-12
dc.description.abstractThe frequency and severity of wildfires in Mediterranean climate regions have increased in the last decades due to changes in climatic conditions and land use. This change in the fire regime has increased the threat to forest, shrublands and agricultural lands. To evaluate to what extent wildfires could affect agricultural soils, we evaluated 40 properties of soil samples collected at two depths (0-5 and 5-10 cm) in areas affected by moderate severity wildfires 14 mo prior, and the immediately neighboring unburned area. The overall most relevant soil properties to differentiate between burned and unburned soil, regardless its sampling depth, were selected as soil quality indicators and used to compute a soil quality index. Accordingly, carboxylesterase activity, available soil moisture, pH, Ca, P, Fe, B, S and Cu were selected using a two-way ANOVA. The results showed that carboxylesterase activity decreased from 0.49 ± 0.18 to 0.26 ± 0.16 μmol h-1 g-1 dry soil, and available soil moisture was reduced from 9.85 ± 0.83 to 8.33 ± 0.52 cm in burned soils. Also, pH significantly decreased from 7.30 ± 0.14 to 6.27 ± 0.23 which affected the subsequent nutrient availability. Thus, Ca and P decreased from 6.50 ± 1.78 to 3.95 ± 0.91 cmol(+) kg-1 and from 10.72 ± 2.84 to 7.44 ± 0.91 mg kg-1 respectively, whereas Fe increased from 3.89 ± 0.97 to 16.75 ± 3.13 mg kg-1, Cu and S availability doubled, and B content increase by 29%. The overall soil quality index revealed a nonsignificant decreased between unburned (0.59 ± 0.03) and burned (0.55 ± 0.04) soils 14 mo after the fire.es_ES
dc.formatapplication/pdfes_ES
dc.identifier.urihttps://hdl.handle.net/20.500.14001/69173
dc.language.isoIngléses_ES
dc.numero.paginas13 p.es_ES
dc.odsVida de ecosistemas terrestres
dc.ods.numero15es_ES
dc.placeofeditionChillán, Chilees_ES
dc.publisherInstituto de Investigaciones Agropecuariases_ES
dc.relation.ispartofChilean Journal of Agricultural Researches_ES
dc.relation.ispartofnov. 83(6) p. 643-655es_ES
dc.subject.spanishincendios forestaleses_ES
dc.subject.spanishpropiedades del sueloes_ES
dc.subject.spanishdisponibilidad de nutrienteses_ES
dc.titleEffect of wildfires on soil properties of agricultural lands of Mediterranean-climate region in Chilees_ES
dc.title.alternativeEfecto de los incendios forestales sobre las propiedades del suelo de tierras agrícolas de la región de clima mediterráneo en Chilees_ES
dc.typeArtículo

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2.2.2. Chilean Journal (Ex- Agricultura Técnica)