Fire-induced soil water repellency under different vegetation types along the Atlantic dune coast-line in SW Spain

Zavala, Lorena M.; González, Félix A.; Jordán, António

doi:10.1016/j.catena.2009.07.002

Cited by 46 publications

(38 citation statements)

References 60 publications

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“…Relatively low temperatures (200–300°C) with long heating duration (8 h) were found to be sufficient to reduce water repellency by chemical alteration of the soil OM substances. The absence of increasing water repellency degree as reported for wildfire soils mentioned by other researchers ( Scott and Van Wyk , ; DeBano , ; Letey , ; García‐Corona et al, ; Zavala et al, ; Jordán et al, ) is probably related to the relatively low OM concentrations in the soil tested in our research. In our experiments OM was altered to hydrophilic rather than more hydrophobic nature as a result of soil heating.…”

Section: Discussionsupporting

confidence: 65%

“…Increasing soil water repellency as a consequence of wildfire and mostly forest fires have previously been reported by many investigators ( e.g ., Scott and Van Wyk , ; DeBano , ; Letey , ; García‐Corona et al, ; Zavala et al, ; Jordán et al, ). Reduction in infiltration ( Letey , ) and HC ( García‐Corona et al, ) and increasing soil runoff and soil erosion was reported as a result of fire induced water repellency ( Scott and Van Wyk , ; Leighton‐Boyce et al, ).…”

Section: Introductionmentioning

confidence: 99%

“…Reduction in infiltration ( Letey , ) and HC ( García‐Corona et al, ) and increasing soil runoff and soil erosion was reported as a result of fire induced water repellency ( Scott and Van Wyk , ; Leighton‐Boyce et al, ). Vegetation type was found to affect the degree of water repellency induced by fire, and pine plants residues were reported to exhibit the highest water repellency ( Scott and Van Wyk , ; Zavala et al, ). Other researcher reported that increasing wax content in plant tissues can affect the intensity of post fire water repellency ( Verheijen and Cammeraat , ).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Water repellency reduction using soil heating in infiltration ponds of a wastewater soil aquifer treatment (SAT)

Nadav

Tarchitzky

Chen

2017

J. Plant Nutr. Soil Sci.

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Reuse of treated wastewater (TWW) for irrigation in agriculture is a common alternative water source in arid regions suffering from fresh water (FW) shortage. Soil aquifer treatment (SAT) is frequently used for advanced TWW purification. Infiltration rates of water through the soil can decrease as a consequence of organic matter (OM) accumulation and the consequent induction of water repellency. In this research, soil heating to high temperatures was examined for its efficiency in OM content reduction and increased infiltration. In a laboratory experiment conducted using a hand burner and a combustion oven, water repellency was found to be reduced following increased heating temperature or heating duration, directly resulting in reduction of OM level. Chemical analysis of OM extracted from the heat treated soils revealed reduction in hydrophobic substances as a consequence of increased temperatures by soil heating and heating duration. In model ponds built to simulate large infiltration basins, OM content was reduced as a result of intensive and moderate soil heating in comparison to the untreated pond. However, no reduction in water repellency and only slight changes in infiltration rate were found as a consequence of soil heating. The differences in results obtained in the laboratory and the field experiments were probably related to the fact that the soil in the field experiment has been continuously reloaded with TWW containing OM.

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Section: Discussionsupporting

confidence: 65%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Water repellency reduction using soil heating in infiltration ponds of a wastewater soil aquifer treatment (SAT)

Nadav

Tarchitzky

Chen

2017

J. Plant Nutr. Soil Sci.

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“…On the other hand, CA estimates obtained using ethanol tests depend largely on the surface roughness and other factors such as duration of contact between soil and ethanol solution, soil moisture and other specific interactions (Roy and McGill, 2002). In a previous study, Zavala et al (2009b) found a strong correlation between WDPT and CA determinations for homogeneous soils (sand dunes) under different land uses. According to these results, direct observations or estimates of CA between water drops and soil surface may be significant only when homogeneous soils are compared.…”

Section: Comparison Of Water Drop Penetration Time Ethanol Percentagmentioning

confidence: 97%

Re‐establishment of soil water repellency after destruction by intense burning in a Mediterranean heathland (SW Spain)

Jordán

González

Zavala

2009

Hydrological Processes

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Abstract:Soil water repellency has been conventionally considered as a fire-induced effect, but an increasing number of studies have suggested that natural background repellency occurs in many soil types, and many of them have suggested that water repellency can be re-established over time after being destroyed. An experimental fire was conducted to study changes of the soil surface during the first 18 months following intense burning. The main objectives of this paper are as follows: (1) to investigate in situ water repellency changes at three soil depths (0, 2 and 4 cm) immediately after burning; (2) to evaluate the medium-term evolution of water repellency under field conditions; and (3) to outline the main hydrological consequences of these changes. Also, different water repellency tests (water drop penetration time, ethanol percentage test (EPT) and contact angle (CA) between water drops and the soil surface) were carried out for comparison purposes. Field experiments showed that soil water repellency was partly destroyed after intense burning. Changes were relatively strong at the soil surface, but diminished progressively with depth. Levels of water repellency were practically re-established 18 months after burning. This suggests that water repellency in the studied area is not necessarily a consequence of fire, but can instead be a natural attribute. Finally, although limited in time, destruction of soil water repellency has important consequences for runoff flow generation and soil loss rates, and, indirectly, for water quality.

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“…In water‐repellent soils, infiltration is inhibited for periods ranging from a few seconds to hours, days or even weeks (King, ; Doerr & Thomas, ). Hydrological and geomorphological impacts of soil WR are a consequence of the reduction of soil infiltration rates, such as increased overland flow, spatially localised infiltration and/or percolation, effects on the distribution and dynamics of soil moisture, enhanced runoff responses to rainstorms, enhanced total streamflow and the development of preferential flow paths in the soil profile (Blackwell, ; de Rooij, ; Doerr et al ., ; Shakesby et al ., ; Leighton‐Boyce et al ., ; Jordán et al ., ; Jordán et al ., ; Zavala et al ., ; Varela et al ., ; García‐Moreno et al ., ).…”

Section: Introductionmentioning

confidence: 99%

Organic Matter Fractions Controlling Soil Water Repellency in Sandy Soils From the Doñana National Park (Southwestern Spain)

et al. 2014

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The relationship between soil organic matter (SOM) content and organic molecular assemblages (n‐alkane/alkenes pairs and n‐fatty acids) with soil water repellency (WR) in different sieve fractions (1–2, 0·25–1, 0·05–0·5 and <0·05 mm) was studied in sandy soils from the Doñana National Park (SW Spain) under four vegetation species: Quercus suber (QS), Pteridium aquilinum (PA), Pinus pinea (PP) and Halimium halimifolium (HH). The severity of soil WR [assessed according to the water drop penetration time (WDPT) test] was ordered according to the sequence QS > PA > PP > HH. A positive correlation was found between soil WR from each sieve fraction and SOM content. Most severe soil WR was detected in QS for all sieve fractions, followed by the finer fractions (<0·05 mm) from PA, PP and HH samples. The finer fraction had the highest SOM content, ranging between 20·9% (PP) and 46·9% (QS). Coarser PA, PP and HH soil fractions (1–2 mm) showed the highest long‐chain‐even C numbered fatty acids in the order PP > PA > HH. A significant correlation was observed between SOM content and the severity of soil WR in QS samples and finer fractions of soil under other vegetation (PA, PP and HH). Coarser fractions (1–2 mm) from PP, PA and HH 1–2 mm sieve fractions showed high severity of WR and relatively low SOM contents that could be explained by a low degree of evolution of the organic residues as seen by analytical pyrolysis, that is, higher alkane/alkene carbon preference index values and the presence of a higher diversity of fatty acid structures. Copyright © 2014 John Wiley & Sons, Ltd.

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Fire-induced soil water repellency under different vegetation types along the Atlantic dune coast-line in SW Spain

Cited by 46 publications

References 60 publications

Water repellency reduction using soil heating in infiltration ponds of a wastewater soil aquifer treatment (SAT)

Water repellency reduction using soil heating in infiltration ponds of a wastewater soil aquifer treatment (SAT)

Re‐establishment of soil water repellency after destruction by intense burning in a Mediterranean heathland (SW Spain)

Organic Matter Fractions Controlling Soil Water Repellency in Sandy Soils From the Doñana National Park (Southwestern Spain)

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