Linking hydraulic properties of fire-affected soils to infiltration and water repellency

Moody, John A.; Kinner, David; Úbeda, Xavier

doi:10.1016/j.jhydrol.2009.10.015

Cited by 111 publications

(101 citation statements)

References 53 publications

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“…Thus, SWR results highlighted the seasonal character of this property, reported widely in the literature in temperate humid areas as well as in semiarid environments (Witter et al, 1991;Kaiser et al, 2001;Benito et al, 2003;Whal, 2008;Zavala et al, 2009). SWR is commonly associated to dry soils and it is supposed to disappear when soil water content increases to a critical soil moisture threshold (Crockford et al, 1991;Imeson et al, 1992;Ritsema and Dekker, 1994;Moody et al, 2009;Santos et al, 2013). SWR results were consistent with this statement and after the summer drought, three out of four microenvironments showed hydrophobicity and only one of them remained wettable, whereas during the wet season all the microenvironments were wettable.…”

Section: Soil Water Repellencysupporting

confidence: 56%

Seasonal changes in the soil hydrological and erosive response depending on aspect, vegetation type and soil water repellency in different Mediterranean microenvironments

et al. 2013

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Abstract. Mediterranean areas are characterized by a strong spatial variability that makes the soil hydrological response highly complex. Moreover, Mediterranean climate has marked seasons that provoke dramatic changes on soil properties determining the runoff rates, such as soil water content or soil water repellency (SWR). Thus, soil hydrological and erosive response in Mediterranean areas can be highly time-as well as space-dependant. This study shows SWR, aspect and vegetation as factors of the soil hydrological and erosive response. Erosion plots were set up in the north-and the south-facing hillslope and rainfall, runoff, sediments and SWR were monitored. Soil water repellency showed a seasonal behaviour and it was presented in three out of four microenvironments after the summer, disappearing in the wet season. In general, runoff rate was higher in shrubs patches (0.47 ± 0.67 mm) than in inter-shrub soils (1.54 ± 2.14 mm), but it changed seasonally in different ways, depending on the aspect considered, decreasing in the north-facing hillslope and increasing in the south-facing one. The main factor determining the hydrological and erosive response was the rainfall intensity, regardless of the rainfall depth of the event. This response was modulated mainly by SWR in the north-facing hillslope and the vegetation pattern in the south-facing one.

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Section: Soil Water Repellencysupporting

confidence: 56%

Seasonal changes in the soil hydrological and erosive response depending on aspect, vegetation type and soil water repellency in different Mediterranean microenvironments

et al. 2013

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“…This device has been used in a variety of recent studies to determine the hydraulic conductivity of sediment and soils (e.g., Murray et al, 2007;Moody et al, 2009;González-Pelayo et al, 2010). The main tube (water reservoir) of the MDI has a diameter of 3.1 cm.…”

Section: Mini-disk Infiltrometer (Mdi)mentioning

confidence: 99%

Field characterization of hydraulic conductivity in a heterogeneous alpine glacial till

Ronayne

Houghton

Stednick

2012

Journal of Hydrology

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“…This portable infiltrometer (326-mm high) can easily be used on mountain slopes with small water volumes (50-90 mL per measurement) and established pressure heads at the infiltrometer base variable in the range -5 to -60 mm (Moody et al, 2009).…”

Section: Mini Disk Infiltrometer Runsmentioning

confidence: 99%

Impacts of thinning of a Mediterranean oak forest on soil properties influencing water infiltration

Prima

Bagarello

Angulo-Jaramillo

et al. 2017

Journal of Hydrology and Hydromechanics

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Abstract:In Mediterranean ecosystems, special attention needs to be paid to forest-water relationships due to water scarcity. In this context, Adaptive Forest Management (AFM) has the objective to establish how forest resources have to be managed with regards to the efficient use of water, which needs maintaining healthy soil properties even after disturbance. The main objective of this investigation was to understand the effect of one of the AFM methods, namely forest thinning, on soil hydraulic properties. At this aim, soil hydraulic characterization was performed on two contiguous Mediterranean oak forest plots, one of them thinned to reduce the forest density from 861 to 414 tree per ha. Three years after the intervention, thinning had not affected soil water permeability of the studied plots. Both ponding and tension infiltration runs yielded not significantly different saturated, K s , and unsaturated, K -20 , hydraulic conductivity values at the thinned and control plots. Therefore, thinning had no an adverse effect on vertical water fluxes at the soil surface. Mean K s values estimated with the ponded ring infiltrometer were two orders of magnitude higher than K -20 values estimated with the minidisk infiltrometer, revealing probably soil structure with macropores and fractures . The input of hydrophobic organic matter, as a consequence of the addition of plant residues after the thinning treatment, resulted in slight differences in terms of both water drop penetration time, WDPT, and the index of water repellency, R, between thinned and control plots. Soil water repellency only affected unsaturated soil hydraulic conductivity measurements. Moreover, K -20 values showed a negative correlation with both WDPT and R, whereas K s values did not, revealing that the soil hydrophobic behavior has no impact on saturated hydraulic conductivity.

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Linking hydraulic properties of fire-affected soils to infiltration and water repellency

Cited by 111 publications

References 53 publications

Seasonal changes in the soil hydrological and erosive response depending on aspect, vegetation type and soil water repellency in different Mediterranean microenvironments

Seasonal changes in the soil hydrological and erosive response depending on aspect, vegetation type and soil water repellency in different Mediterranean microenvironments

Field characterization of hydraulic conductivity in a heterogeneous alpine glacial till

Impacts of thinning of a Mediterranean oak forest on soil properties influencing water infiltration

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