Field characterization of hydraulic conductivity in a heterogeneous alpine glacial till

Ronayne, Michael J.; Houghton, Tyler B.; Stednick, John D.

doi:10.1016/j.jhydrol.2012.06.036

Cited by 42 publications

(35 citation statements)

References 35 publications

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“…Sin embargo, cabe destacar que dicho instrumento, no ha sido utilizado con regularidad en viñedos hasta la fecha, pese a estar bastante extendido su uso para fines hidrogeológicos y agronómicos desde hace décadas (Reynolds, 1986;Elrick y Reynolds, 1992;Xiang, 1994;Bagarello, 1997;Kodešová et al, 2010;Ronayne et al, 2012;Reynolds y Lewis, 2012;Nasri et al, 2015).…”

Section: Discussionunclassified

Variación espacio-temporal de los procesos hidrológicos del suelo en viñedos con elevadas pendientes (Valle del Ruwer-Mosela, Alemania)

Rodrigo‐Comino

Seeger

Senciales³

et al. 2016

CIG

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Section: Discussionunclassified

Variación espacio-temporal de los procesos hidrológicos del suelo en viñedos con elevadas pendientes (Valle del Ruwer-Mosela, Alemania)

Rodrigo‐Comino

Seeger

Senciales³

et al. 2016

CIG

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“…Mohanty et al (1994) reported systematically lower values with GP than with TI, but they were dealing with infiltration measurements performed at a depth of 15, 30 or 90 cm and not in the topsoil. Ronayne et al (2012) found larger values with the DR than with GP in a glacial till soil. In stony soils, Verbist et al (2013) reported larger values with SR than with DR, the latter being larger than with TI.…”

Section: Description Of the Available Data Setsmentioning

confidence: 73%

“…Several studies have compared different techniques for estimating soil saturated hydraulic conductivity (e.g. Bagarello et al, 2014;Mohanty et al, 1994;Ronayne et al, 2012;Verbist et al, 2013). Mohanty et al (1994) reported systematically lower values with GP than with TI, but they were dealing with infiltration measurements performed at a depth of 15, 30 or 90 cm and not in the topsoil.…”

Section: Description Of the Available Data Setsmentioning

confidence: 99%

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Mapping topsoil field-saturated hydraulic conductivity from point measurements using different methods

Braud¹,

Desprats²,

Ayral

et al. 2017

Journal of Hydrology and Hydromechanics

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Topsoil field-saturated hydraulic conductivity, Kf s , is a parameter that controls the partition of rainfall between infiltration and runoff and is a key parameter in most distributed hydrological models. There is a mismatch between the scale of local in situ Kf s measurements and the scale at which the parameter is required in models for regional mapping. Therefore methods for extrapolating local Kf s values to larger mapping units are required. The paper explores the feasibility of mapping Kf s in the Cévennes-Vivarais region, in south-east France, using more easily available GIS data concerning geology and land cover. Our analysis makes uses of a data set from infiltration measurements performed in the area and its vicinity for more than ten years. The data set is composed of Kf s derived from infiltration measurements performed using various methods: Guelph permeameters, double ring and single ring infiltrotrometers and tension infiltrometers. The different methods resulted in a large variation in Kf s up to several orders of magnitude. A method is proposed to pool the data from the different infiltration methods to create an equivalent set of Kf s . Statistical tests showed significant differences in Kf s distributions in function of different geological formations and land cover. Thus the mapping of Kf s at regional scale was based on geological formations and land cover. This map was compared to a map based on the Rawls and Brakensiek (RB) pedotransfer function (mainly based on texture) and the two maps showed very different patterns. The RB values did not fit observed equivalent Kf s at the local scale, highlighting that soil texture alone is not a good predictor of Kf s .

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“…Near‐saturated hydraulic conductivity was measured in July and August 2010 using a mini disk infiltrometer (Decagon Devices, Inc). The mini disk infiltrometer may not be the ideal tool for near‐saturated hydraulic conductivity measurements because of the small disk diameter (4.5 cm) and small area of influence; however, conductivity results from this device are accepted in the literature (González‐Pelayo et al ., ; Ronayne et al ., ). This device was used because of its portability and low water volumes required for each test, both necessitated by the remote and mountainous sampling locations, which would render the use of more sophisticated devices such as a Guelph Permeameter impractical.…”

Section: Methodsmentioning

confidence: 97%

Infiltration and soil water dynamics in a tropical dry forest: it may be dry but definitely not arid

Farrick

Branfireun

2014

Hydrological Processes

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Abstract:Studies of hydrological processes in tropical dry forests are less than 1% of published forest hydrology literature. The strong drywet seasonality typical of the tropical dry forest ecoregion is similar to those that characterize semi-arid regions. In semi-arid systems, infiltration is often limited by low hydraulic conductivities (K) and extreme levels of soil water repellency, which when combined with high rainfall intensities, result in infiltration excess (Hortonian) overland flow (HOF) as a dominant runoff mechanism. Given that little is known about the surface runoff hydrology of tropical dry forests, we tested the hypothesis that our knowledge about controls on runoff in semi-arid systems is transferrable to tropical dry forest hillslopes. Our results show that tropical dry forest soils do develop a strong water repellency during the dry season; however, this does not persist through the wet season. In our period of study, surface K ranged from 9 to 164 mm/h and was greater than the rainfall intensity for more than 75% of the rain events. In our period of study, rainfall intensities were generally low with more than half of the storm events falling between 0.2 and 4.2 mm/h. The low rainfall intensities, high K and lack of repellent surfaces during the wet season result in the percolation of >70% of the annual rainfall through the upper 30 cm of soil, indicating that subsurface flow, not HOF, is the primary runoff mechanism. These findings show that in spite of similar climate and vegetation regimes, hydrological knowledge from semi-arid catchments is not transferrable to tropical dry forests.

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Field characterization of hydraulic conductivity in a heterogeneous alpine glacial till

Cited by 42 publications

References 35 publications

Variación espacio-temporal de los procesos hidrológicos del suelo en viñedos con elevadas pendientes (Valle del Ruwer-Mosela, Alemania)

Variación espacio-temporal de los procesos hidrológicos del suelo en viñedos con elevadas pendientes (Valle del Ruwer-Mosela, Alemania)

Mapping topsoil field-saturated hydraulic conductivity from point measurements using different methods

Infiltration and soil water dynamics in a tropical dry forest: it may be dry but definitely not arid

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