EVALUATION OF SATURATED HYDRAULIC CONDUCTIVITY (KSAT) AND SOME SOIL PROPERTIES AT AGR 305 FARM
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Abstract
The saturated hydraulic conductivity in this work was determined using its relationship with
other soil parameters. A soil survey process was used to determine the Ksat of two mapping
unit found in the site. Each mapping unit was represented with a pedon from which soils were
collected using a soil auger and core sampler. Ksat was determined in the laboratory using the
constant head method, the primary objective of this study was to evaluate the relationship
between saturated hydraulic conductivity and other soil routine properties of soils found at
the AGR 305 Farm to see if a prediction equation could be derived and used in the
determination of saturated hydraulic conductivity in soils with similar properties. The result showed that the study site in mapping unit 1 and mapping unit 2 have parameters
that correlated differently. In mapping unit 1, it was observed that phosphorus (0.736), CEC
(0.879), Base saturation (0.831), clay(0.726) correlated positively while sand (-0.766), aggregate stability (-0.614) correlated negatively and was used to determine the saturated
hydraulic conductivity of that mapping unit. But in mapping unit 2, ph (-0.858), organic
carbon (-0.884), organic matter (-0.770), total nitrogen (-0.771) correlated negatively while
bulk density (0.851) correlated positively and was used to determine the saturated hydraulic
conductivity for that soil type.
other soil parameters. A soil survey process was used to determine the Ksat of two mapping
unit found in the site. Each mapping unit was represented with a pedon from which soils were
collected using a soil auger and core sampler. Ksat was determined in the laboratory using the
constant head method, the primary objective of this study was to evaluate the relationship
between saturated hydraulic conductivity and other soil routine properties of soils found at
the AGR 305 Farm to see if a prediction equation could be derived and used in the
determination of saturated hydraulic conductivity in soils with similar properties. The result showed that the study site in mapping unit 1 and mapping unit 2 have parameters
that correlated differently. In mapping unit 1, it was observed that phosphorus (0.736), CEC
(0.879), Base saturation (0.831), clay(0.726) correlated positively while sand (-0.766), aggregate stability (-0.614) correlated negatively and was used to determine the saturated
hydraulic conductivity of that mapping unit. But in mapping unit 2, ph (-0.858), organic
carbon (-0.884), organic matter (-0.770), total nitrogen (-0.771) correlated negatively while
bulk density (0.851) correlated positively and was used to determine the saturated hydraulic
conductivity for that soil type.
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