The Nature of Curve Infiltration Pattern Circumstantially in Parit Raja Using Tension Infiltrometer

Nur Aini Mohd Arish, Sabariah Musa and Khairun Nisa'a Ismail

ABSTRACT

Objective - Infiltration is a process whereby water from land surface infiltrate into soil through pore space such as cracks and silt and it can be represented the as largest components of water loses from precipitation source.The objective of this study is to determine infiltration curve at Parit Raja, Batu Pahat Johor.

Methodology/Technique - The characteristic of the infiltration rate at land surface is identified by using Tension Infiltrometer. Tension disc infiltrometer tests were carried out on top soil at ten different locations. All the measured data were analyzed using Wooding's (1968) analytical solution where it used to calculate the hydraulic conductivity versus water content relationship from unconfined infiltration. The data also were analyzed by using Horton Infiltration Equation.

Findings - The hydraulic conductivity obtained from the in-situ test shows that the average rate is 0.0001mm/hr and the soil type is silty clay. Apart from that, this study proves that infiltration rate in Parit Raja area, Batu Pahat Johor was low between 1.00 mm/hr to 15mm/hr which is clay soil. However, the low infiltration rate can cause devastating effects on the landscape of the developing watersheds.

Novelty - Soil infiltration for these ten stations must be increased in order to prevent floods. For examples increase the amount of organic materials added to the soil to increase the stability of soils aggregates. Soil can be an excellent medium storage for water, depending on type and condition of the soil.

Type of Paper: Empirical

Keywords: Horton, Infiltration, Tension Infiltrometer, Watersheds,Wooding's.

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