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Títol:
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An automated disc infiltrometer for infiltration rate measurements using a microflowmeter
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Autor/a:
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Moret Fernández, D.; Gonzalez, C.; Lampurlanés Castel, Jorge; Vicente, J.
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Notes:
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This work presents a new design of disc infiltrometer, which, associated with a microflowmeter (MF) and a solenoid valve set,
makes it possible to automate the infiltration rate (Q) measurements at different soil pressure heads ( ). The MF consists of
a 13Ð8-cm long and 1Ð5 mm i.d. pipe, with a pressure transducer connecting the two ends of the MF, inserted in a water-flow
pipe that connects the Mariotte tube and the water-supply reservoir of the disc infiltrometer. Water flow is calculated from
the head losses in the MF. Changes in ψ in the bubble tower, automatically affected when the infiltration rate reaches steady
state, are controlled by a datalogger connected to four solenoid valves. The new design was tested in laboratory and field
conditions, and the results showed that the MF allows the soil water infiltration rates to be correctly estimated for different
soil characteristics. The solenoid valve set plus datalogger system satisfactorily monitored the changes in and allowed the
measurement time to be optimized.
This research was supported by the Ministerio de Ciencia e Innovaci´on of Spain (grants AGL2007-66320-CO2- 02/AGR; 200840I214). |
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Matèries:
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-Disc infiltrometer
-Infiltration rate
-Microflowmeter |
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Drets:
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(c) John Wiley & Sons, Ltd., 2011
info:eu-repo/semantics/restrictedAccess |
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Tipus de document:
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article
publishedVersion |
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Publicat per:
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Wiley
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Compartir:
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