Estimation of soil hydraulic properties using an improvised tension disc permeameter

Date

12-2016

Degree

Bachelor of Science in Agricultural and Biosystems Engineering

Major Course

Major in Land & Water Resources Engineering

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

Maurice A. Duka

Restrictions

Restricted: Not available to the general public. Access is available only after consultation with author/thesis adviser and only to those bound by the confidentiality agreement.

Abstract

In an attempt to estimate the unsaturated hydraulic properties of the soil, an improvised tension disc permeameter was fabricated using low-cost and locally-available materials. The functionality of the equipment was evaluated by quantifying the infiltration parameters of the experimental site at three applied tensions: 5, 10, and 15 cm. The infiltration data, together with the volumetric moisture content, Ө, were used to estimate sorptivity, S and unsaturated hydraulic conductivity K(Ө) of the soil. Results from 15 infiltration runs at the experimental site yielded average S and K(Ө) estimates of the silty clay loam soil equal to 0.0846 mm/(s^0.5 ) and 0.0441 m/s, respectively. Increasing the tension applied at the soil surface caused an apparent decrease in the infiltrati

Language

English

Location

UPLB College of Engineering and Agro-Industrial Technology (CEAT)

Call Number

LG 993.5 2015 A2 /G86

Document Type

Thesis

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