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dc.creatorBárcenas Moreno,
dc.creatorJiménez Compán, Elisabethes
dc.creatorSan Emeterio, Layla
dc.creatorJiménez Morillo, Nicasio
dc.creatorGonzález Pérez, José
dc.identifier.citationBárcenas Moreno, G., Jiménez Compán, E., San Emeterio, L.M., Jiménez Morillo, N.T. y González Pérez, J.A. (2022). Soil pH and soluble organic matter shifts exerted by heating affect microbial response. International Journal of Environmental Research and Public Health, 19 (23).
dc.description.abstractFire-induced alterations to soil pH and organic matter play an important role in the post-fire microbial response. However, the magnitude of which each parameter affects this response is still unclear. The main objective of this work was to determine the magnitude in which soil pH and organic matter fire-induced alterations condition the response of viable and cultivable micro-organisms using laboratory heating, mimicking a range of fire intensities. Four heating treatments were applied to unaltered forest soil: unheated, 300, 450, and 500 °C. In order to isolate the effect of nutrient or pH heating-induced changes, different culture media were prepared using soil:water extracts from the different heated soils, nutrient, and pH amendments. Each medium was inoculated with different dilutions of a microbial suspension from the same original, unaltered soil, and microbial abundance was estimated. Concurrently, freeze-dry aliquots from each soil:water extract were analyzed by pyrolysis-gas chromatography/mass spectrometry. The microbial abundance in media prepared with heated soil was lower than that in media prepared with unheated soil. Nutrient addition and pH compensation appear to promote microbial proliferation in unaltered and low-intensity heated treatments, but not in those heated at the highest temperatures. Soil organic matter characterization showed a reduction in the number of organic compounds in soil-heated treatments and a marked increase in aromatic compounds, which could be related to the observed low microbial
dc.description.sponsorshipJunta de Andalucía PAIDI2020, PY20_01073es
dc.description.sponsorshipFundação para a Ciência e a Tecnologia PCIF/RPG/0079/2018es
dc.publisherMultidisciplinary Digital Publishing Institute (MDPI)es
dc.relation.ispartofInternational Journal of Environmental Research and Public Health, 19 (23).
dc.rightsAtribución 4.0 Internacional*
dc.subjectColony forming units (CFU)es
dc.subjectLaboratory heatinges
dc.subjectPyrolysis–gas chromatography–mass spectrometry (Py-GC/MS)es
dc.subjectSoil micro-organismses
dc.subjectSoil organic matter (SOM)es
dc.subjectSoil pHes
dc.titleSoil pH and soluble organic matter shifts exerted by heating affect microbial responsees
dc.contributor.affiliationUniversidad de Sevilla. Departamento de Cristalografía, Mineralogía y Química Agrícolaes
dc.relation.projectIDPAIDI2020, PY20_01073es
dc.journaltitleInternational Journal of Environmental Research and Public Healthes
dc.contributor.funderJunta de Andalucíaes
dc.contributor.funderFundação para a Ciência e a Tecnologia. Portugales

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Atribución 4.0 Internacional
Except where otherwise noted, this item's license is described as: Atribución 4.0 Internacional