Estimating hydraulic conductivity of crusted soils using disc infiltrometers and minitensiometers

Vandervaere, Jean‐Pierre; Peugeot, Christophe; Vauclin, Michel; Jaramillo, Rafael; Lebel, Thierry

doi:10.1016/s0022-1694(96)03160-5

Cited by 112 publications

(90 citation statements)

References 43 publications

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“…In particular, the starting point of the developed method was that the only measurable data, in addition to the initial (θi) and saturated (θs) soil water content, were the parameters of the Gardner (1958) hydraulic conductivity function for both the crust and the sub-soil. These last data can be obtained by tension infiltrometer experiments according to Vandervaere et al (1997). Vertical infiltration is described by the Green-Ampt model since the water retention curve does not need to be known in this case.…”

Section: Reference Stepsmentioning

confidence: 99%

Predicting plot soil loss by empirical and process-oriented approaches. A review

Bagarello

Ferro²,

Flanagan

2018

J Agricult Engineer

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Soil erosion directly affects the quality of the soil, its agricultural productivity and its biological diversity. Many mathematical models have been developed to estimate plot soil erosion at different temporal scales. At present, empirical soil loss equations and process-oriented models are considered as constituting a complementary suite of models to be chosen to meet the specific user need. In this paper, the Universal Soil Loss Equation and its revised versions are first reviewed. Selected methodologies developed to estimate the factors of the model with the aim to improve the soil loss estimate are described. Then the Water Erosion Prediction Project which represents a process-oriented technology for soil erosion prediction at different spatial scales, is presented. The available criteria to discriminate between acceptable and unacceptable soil loss estimates are subsequently introduced. Finally, some research needs, concerning tests of both empirical and process-oriented models, estimates of the soil loss of given return periods, reliability of soil loss measurements, measurements of rill and gully erosion, and physical models are delineated.

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Section: Reference Stepsmentioning

confidence: 99%

Predicting plot soil loss by empirical and process-oriented approaches. A review

Bagarello

Ferro²,

Flanagan

2018

J Agricult Engineer

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“…No reference measurement method concerned with tension infiltrometer exists, however different types have been designed and used (i.e. Perroux and White 1988, Ankeny et al 1991, Vandervaere et al 1997, Špongrová et al 2009). The advantages of using tension infiltrometers, such as a minimal disturbance of the soil surface, simplicity and replicability of the measurements were evaluated i.e.…”

mentioning

confidence: 99%

The role of the initial soil water content in the determination of unsaturated soil hydraulic conductivity using a tension infiltrometer

Matula¹,

Miháliková²,

Lufinková³

et al. 2015

PLANT SOIL ENVIRON

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The unsaturated hydraulic conductivity K(h) is a key soil parameter governing the water and solute transportation processes. The course of this function depends on the geometry of the pores which is determined by the soil's physical and chemical properties. Many studies focus on the comparison of soil hydraulic conductivity under different conditions. Despite the recent progress in this research field, no reference method for measuring the K(h) in situ exists. This study focuses on the effect of the initial water content of the soil as a factor influencing the measured K(h). The study was performed in situ over short time period and with several replications close to each other in order to reduce the effect of other factors which could cause variations. Two tension infiltrometers were used and compared: A Hood infiltrometer IL-2700 and a Minidisk infiltrometer. Three different levels of initial water content (dry, medium wet and wet) were applied for each of the two infiltrometers, and three pressure heads (-0.5; -1 and -3 cm) for each measurement. According to the results, the Minidisk infiltrometer showed significant sensitivity to the initial water content, while measurements performed using the Hood infiltrometer were more stable.

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“…Thus, soil sorptivity (S) for our field infiltration experiment (S = 0.641 mm s -0.5 ) was estimated using the differentiated linearization method developed by Vandervaere et al (1997) (Fig. 4b).…”

Section: Resultsmentioning

confidence: 99%

“…However, this practice requires constant vigilance since visual readings have to be made at constant intervals and sometimes over long periods of time as in the case of slowly permeable clay soils. In other situations, when using early-time transient flow to infer soil hydraulic properties (Vandervaere et al, 1997), initial infiltration rates can be too rapid to be recorded with the required precision.…”

Section: Introductionmentioning

confidence: 99%

TDR application for automated water level measurement from Mariotte reservoirs in tension disc infiltrometers

Moret

López

Arrúe

2004

Journal of Hydrology

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This paper describes the use of an automated method of measuring water level changes in Mariotte-type reservoirs via time domain reflectometry (TDR) and demonstrates its field application for measurements of soil hydraulic properties. The method is based on the assumption that the travel time of a TDR pulse propagating along a transmission line immersed in an air-water medium is the summation of the pulse travel times in the air and water phases. A TDR cable tester generates a pulse that propagates through a three-rod probe traversing the centre of the Mariotte reservoir from top to bottom. The reflection of the pulse is automatically transferred to a computer for waveform analysis with the water level being a simple function of probe length and the air, water, and air-water medium dielectric constants as measured by the cable tester. Water level measurements obtained with the TDR technique showed close agreement with those obtained using visual and pressure transducer procedures. The application of this TDR method as an alternative to more traditional methods was demonstrated in a field experiment using a tension disc infiltrometer. The TDR approach allows for automated water level measurements and is simple, accurate and easy to implement. Moreover, it allows for simultaneous TDR measurements of both water flow and volumetric water content of soil below the infiltrometer disc.

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Estimating hydraulic conductivity of crusted soils using disc infiltrometers and minitensiometers

Cited by 112 publications

References 43 publications

Predicting plot soil loss by empirical and process-oriented approaches. A review

Predicting plot soil loss by empirical and process-oriented approaches. A review

The role of the initial soil water content in the determination of unsaturated soil hydraulic conductivity using a tension infiltrometer

TDR application for automated water level measurement from Mariotte reservoirs in tension disc infiltrometers

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