Analysis of unsaturated hydraulic conductivity parameter in Central Aceh District

This paper aims to analysis unsaturated hydraulic conductivity parameter using the Champbell and Gradner method which has been featured by eleven ring samples collected from Central Aceh. In this research, Champbell and Gradner model was used to predict unsaturated hydraulic conductivity, but the results revealed to be unsatisfactory especially in porosity and degree saturation parameter. The best correlation between soil physic with conductivity hydraulic for Gradner method and Champbell method were water content (Gradner Method) and bulk density (Champbell Method). The water content showed statistical value 0.99, it mean the relationship between hydraulic conductivity and water content parameter represent in proportionality between moisture content and flow rate in unsaturated zone. Other side, the best correlation for Champbell method showed for bulk density parameter with statistical value 0.65. It represented good relationship between bulk density and hydraulic conductivity in this research.