Burn effects on soil properties associated to heat transfer under contrasting moisture content

Badía, David; García, Sergio López; Martí, Clara; Ortíz-Perpiñá, Oriol; Girona-García, Antonio; Casanova-Gascón, José

doi:10.1016/j.scitotenv.2017.05.254

Cited by 86 publications

(61 citation statements)

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“…Recent laboratory studies showed that burning itself Wildfire severity was high-to-moderate in Ermida (Prats et al, 2016c) and moderate in Colmeal (Prats et al, 2016b) and Semide study sites (this study; Keizer et al, 2018;Lopes et al, in press). [Colour figure can be viewed at wileyonlinelibrary.com] will deplete 50% of the carbon in dried forest soils (Badía et al, 2017). Lines connect soil erosion average values of untreated plots from similar plot sizes in each burnt area.…”

Section: Post-fire Mulching and Effects In Soil Organic Mattermentioning

confidence: 99%

“…Lines connect soil erosion average values of untreated plots from similar plot sizes in each burnt area. [Colour figure can be viewed at wileyonlinelibrary.com] will deplete 50% of the carbon in dried forest soils (Badía et al, 2017). And after burning, the soils will be exposed to the combined effect of erosion, transport and deposition.…”

Section: Post-fire Mulching and Effects In Soil Organic Mattermentioning

confidence: 99%

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Post‐fire soil erosion mitigation at the scale of swales using forest logging residues at a reduced application rate

Prats

González-Pelayo

Silva

et al. 2019

Earth Surf Processes Landf

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Mulching with forest residues has proved to be highly effective in reducing post‐fire soil losses at the plot scale. However, its effectiveness has not been quantified at the application rates that are typically used in operational post‐fire land management (2–3 Mg ha‐1 using straw), as well as at scales larger than 100 m2. The present study compared post‐fire erosion rates for six convergent hillslopes or swales of 500 to 800 m2, three of which were left untreated while the other three were mulched immediately after the fire with shredded eucalypt bark at a rate of 2.4 Mg ha‐1. Erosion rates were monitored at irregular intervals during the first three post‐fire years, whilst ground cover was assessed yearly. Selected topsoil properties (0–2 cm) such as organic matter content and aggregate stability were determined at a single occasion – two years after the wildfire, for three micro‐environments separately: bare soil, and under mulch/litter and vegetation. Soil losses on the untreated swales decreased with post‐fire year from 2.2 to 0.4 and 0.11 Mg ha‐1 yr‐1 (respectively for the first, second and third post‐fire years), while the mulched swales produced 84%, 77% and 38% less soil losses than the untreated swales. Soil losses also depended on slope aspect, with the north‐facing swales producing less erosion than the west‐facing ones. This could be linked to their significant differences in bare soil, vegetation and stone cover, or a combination thereof. The type of micro‐environment also played a significant role in topsoil properties (stone content, bulk density, resistance to penetration/shear stress, porosity and organic matter content). The present results add to the increasing evidence that forest residues should be duly considered for operational post‐fire land management. Forest residues were highly effective in reducing erosion from swales at application rates as low as the typical 2 Mg ha‐1 of post‐fire straw mulch. © 2019 John Wiley & Sons, Ltd. © 2019 John Wiley & Sons, Ltd.

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Section: Post-fire Mulching and Effects In Soil Organic Mattermentioning

confidence: 99%

Section: Post-fire Mulching and Effects In Soil Organic Mattermentioning

confidence: 99%

Post‐fire soil erosion mitigation at the scale of swales using forest logging residues at a reduced application rate

Prats

González-Pelayo

Silva

et al. 2019

Earth Surf Processes Landf

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“…Neither the clearing nor the fire seem to drastically affect the underground organs of the argoma, as shown by its persistence and renewal vigor, together with an abundant post-fire germination of its seeds (Reyes and Casal, 2008). The time of the burning (winter) is the most suitable considering both the protection of the soil (Gehú and Gehú-Frank, 1960;Montserrat, 1978;Badía et al, 2017;Alcañiz et al, 2018) and the easy combustion of the plant due to the absence of sap circulation. However, the humid and cold soil during this season can provide greater protection for buds and roots (Badía et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

“…The time of the burning (winter) is the most suitable considering both the protection of the soil (Gehú and Gehú-Frank, 1960;Montserrat, 1978;Badía et al, 2017;Alcañiz et al, 2018) and the easy combustion of the plant due to the absence of sap circulation. However, the humid and cold soil during this season can provide greater protection for buds and roots (Badía et al, 2017). In addition, the dense structure of the underground organs of the shrub prevents the establishment of herbaceous grass or limits the germination to some annual plants with little pastoral interest and short life after the treatments (Calvo et al, 2002).…”

Section: Discussionmentioning

confidence: 99%

“…The use of fire by controlled burning also depends, for security reasons, on accessibility, although its practice is secular, simpler in cost and personnel, and can be applied to large areas with homogeneous shrub cover (Métailié, 1981). The impact of fire on soils is difficult to evaluate, as it depends on the characteristics of the soil, the fire (intensity and severity) and the vegetation itself (Armas-Herrera et al, 2016;Badía et al, 2017;Alcañiz et al, 2018). In some cases a great risk of erosion has been reported, as in Nadal- Romero et al (2018) who showed that soil loss was three times greater in the burnt plots than in the control plots.…”

Section: Introductionmentioning

confidence: 99%

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Evolution of argoma shrubland (Ulex gallii Planch.) after clearing and burning treatments in Sierra de Aralar and Belate (Navarra)

Gómez

Aguirre²,

Lizaur

et al. 2019

CIG

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Shrub encroachment is considered one of the greatest threats in the conservation of pastures, especially in abandoned territories and territories with low stocking density. However, in the Navarra Pyrenees and Basque mountains, with a high stocking density maintained during the last decades, the expansion of argoma shrubland (Ulex gallii), shows that grazing is not enough for its control and requires evaluating measures of clearing. To evaluate the efficiency of the burning and the mechanical clearing (with two treatments: at ground level and 10 cm above ground) in the control of the shrub, these treatments were applied in different plots of encroached grasslands in two pastoral territories (Sierra de Aralar and Belate). After the burning and clearing, the evolution of the shrub was compared in the cleared plots closed to grazing and in their replicas open to it. The results showed differences between the different treatments in both territories that may be related to the initial coverage of the shrubland. In general, burning was less effective in controlling shrubland and allowed a greater resprout than mechanical clearing. No significant differences were found between the two types of mechanical clearing (at ground level and at 10 cm above ground). Finally, grazing caused a delay in the recovery of the shrub in all casesbut it was not able to eliminate the shrubs completely. From the field observations, the opinions of the farmers and the results of similar experiences, some measures for grassland management were collected and discussed to correct or complement the clearing treatments in order to increase their efficiency.

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Energy dispersive X‐ray fluorescence analysis to estimate the maximum temperature reached in burned soils from an Amazonian region

et al. 2022

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Determining the maximum temperature reached in soil during burning is important when evaluating fire intensity. Forest conversion is an ongoing process in the Amazon ecosystem. It is of utmost importance to predict fire effects on soil properties and avoid damaging environmental systems. Spectroscopic methods combined with multivariate statistics may provide chemical and mineralogical information from soil. This study aims at predicting the maximum temperature reached in Oxisols from an Amazonian region in Brazil. Slash‐and‐burn and pasture samples collected after fire events and unburned forest soil samples submitted to heating (250–800 °C) were investigated. Energy‐dispersive X‐ray fluorescence (EDXRF) was used to acquire chemical data. The experimental procedure is rapid and requires minimal sample preparation and no hazardous chemical reagents. The EDXRF data, combined with partial least squares regression, were applied in controlled‐heated samples from five different sites of forest, pasture, and slash‐and‐burn areas. Estimated temperatures for burned samples ranged from 317 to 609 °C. Considering the instrumental advantages and the achieved results, the use of EDXRF combined with multivariate analysis is a feasible alternative technology to evaluate fire effects in soil.

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Burn effects on soil properties associated to heat transfer under contrasting moisture content

Cited by 86 publications

References 50 publications

Post‐fire soil erosion mitigation at the scale of swales using forest logging residues at a reduced application rate

Post‐fire soil erosion mitigation at the scale of swales using forest logging residues at a reduced application rate

Evolution of argoma shrubland (Ulex gallii Planch.) after clearing and burning treatments in Sierra de Aralar and Belate (Navarra)

Energy dispersive X‐ray fluorescence analysis to estimate the maximum temperature reached in burned soils from an Amazonian region

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