RT info:eu-repo/semantics/article
T1 Impact of burn severity on soil properties in a Pinus pinaster ecosystem immediately after fire
A1 Fernández García, Víctor
A1 Marcos Porras, Elena María
A1 Fernández Guisuraga, José Manuel
A1 Taboada Palomares, Ángela
A1 Suárez Seoane, Susana
A1 Calvo Galván, María Leonor
A2 Ecologia
K1 Ecología. Medio ambiente
K1 Biological properties
K1 Chemical properties
K1 Maritime pine
K1 Physical properties
K1 Wildfire
AB We analyse the effects of burn severity on individual soil properties and soil quotients in Mediterranean fire-prone pine forests immediately after a wildfire. Burn severity was measured in the field through the substrate stratum of the Composite Burn Index and soil samples were taken 7–9 days after a wildfire occurred in a Pinus pinaster Ait. ecosystem. In each soil sample, we analysed physical (size of soil aggregates), chemical (pH, organic C, total N and available P) and biological (microbial biomass C, b-glucosidase, urease and acid phosphatase activities) properties. Size of aggregates decreased in the areas affected by high burn severity. Additionally, moderate and high severities were associated with increases in pH and available P concentration and with decreases in organic C concentration. Microbial biomass C showed similar patterns to organic C along the burn severity gradient. The enzymatic activities of phosphatase and b-glucosidase showed the highest sensitivity to burn severity, as they strongly decreased from the low-severity scenarios. Among the studied soil quotients, the C : N ratio, microbial quotient and b-glucosidase : microbial biomass C quotient decreased with burn severity. This work provides valuable information on the impact of burn severity on the functioning of sandy siliceous soils in fire-prone pine ecosystems.
PB CSIRO Publishin
YR 2019
FD 2019-02-01
LK http://hdl.handle.net/10612/9415
UL http://hdl.handle.net/10612/9415
NO International Journal of Wildland Fire
NO P. 1-11
DS BULERIA. Repositorio Institucional de la Universidad de León
RD 16-abr-2024