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Título
Do Fire Regime Attributes Affect Soil Biochemical Properties in the Same Way under Different Environmental Conditions?
Autor
Facultad/Centro
Área de conocimiento
Título de la revista
Forests
Número de la revista
3
Cita Bibliográfica
Fernández-García, V., Marcos, E., Reyes, O. & Calvo, L. (2020). Do fire regime attributes affect soil biochemical properties in the same way under different environmental conditions? Forests, 11(3) Article e274. https://doi.org/10.3390/F11030274
Editorial
MDPI
Fecha
2020
Resumen
[EN] Global change is altering fire frequency and severity in many regions across the world. In this work, we studied the impact of different frequency and severity regimes on the soil biochemical properties in burned areas with different environmental conditions. We selected three sites dominated by pine ecosystems along a Mediterranean-Transition-Oceanic climatic gradient, where we determined the fire frequency, and severity of the last wildfire. Four years after the last wildfire, we established 184 4 m2 plots. In each plot, we collected a composed soil sample from a 3 cm depth, and measured several ecological variables potentially affected by the fire frequency and severity (cover of bare soil, cover of fine and coarse plant debris, cover of vegetation, and vegetation height). From each soil sample, we analyzed the enzymatic activities corresponding to the biogeochemical cycles of carbon, nitrogen, and phosphorus (β-glucosidase, urease, and acid-phosphatase, respectively), and the microbial biomass carbon. The results indicated that fire frequency only played a significant role in soil biochemical properties at the Mediterranean and Transition sites. Specifically, we found that increases in frequency contributed to increased urease and phosphatase activities (at the Transition site), as well as microbial biomass carbon (at the Mediterranean and Transition sites). In relation to burn severity, we found opposite patterns when comparing the Mediterranean and Oceanic sites. Specifically, increased severity significantly decreased β-glucosidase, urease, and microbial biomass carbon at the Mediterranean site, whereas at the Oceanic one, severity significantly increased them. Burn severity also decreased microbial biomass carbon at the Transition site. Our results also indicated that, overall, fire frequency determined the studied ecological variables at the Mediterranean and Transition sites, but clear indirect effects on biochemical properties due to changes in ecological variables were not found. This study adds to the knowledge on the impact of shifts in fire regimes on soils in the current context of change
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SI
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- info:eu-repo/grantAgreement/AEI/Programa Estatal de I+D+i Orientada a los Retos de la Sociedad/AGL2017-86075-C2-1-R/ES/Severidad de grandes incendios en sistemas forestales propensos al fuego: condicionantes, efectos en la provision de servicios y soluciones de gestion pre- y post-incendio/FIRESEVES
- info:eu-repo/grantAgreement/Junta de Castilla y León//LE001P17/ES/Identificación de estructuras forestales relacionadas con la severidad en grandes incendios y sus efectos en la provisión de servicios ecosistémicos con importancia socioeconómica en Castilla y León /SEFIRECYL
- info:eu-repo/grantAgreement/MINECO/Programa Estatal de Fomento de la Investigación Científica y Técnica de Excelencia/AGL2013-48189-C2-1-R/ES/Herramientas multiescala para la gestion post-incendio de ecosistemas forestales propensos al fuego en el contexto de cambio global/GESFIRE
- info:eu-repo/grantAgreement/Junta de Castilla y León//LE033U14/ES/Herramientas para la gestión post-incendio de los ecosistemas propensos al fuego en Castilla y León. El caso particular de la Sierra de Teleno/FIRECYL
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