A method to prevent edge-flow in undisturbed soil cores and lysimeters
Australian Journal of Soil Research1990Vol. 28(6), pp. 879–886
Citations Over TimeTop 10% of 1990 papers
Abstract
This study shows that edge-flow of water and solutes between soil samples and lysimeter or permeameter casings can result in significant errors in the measurement of hydraulic conductivity and leaching rates. A new lysimeter design and technique are described which prevent edge-flow from occurring. Liquefied petrolatum is injected into an annular gap between the soil and the lysimeter casing producing a watertight seal. Water and solute movement in the sealed lysimeter is therefore confined within the soil monolith and no edge-flow occurs. Hydraulic conductivity and solute leaching rates are significantly lower in sealed lysimeters compared with unsealed ones.
Related Papers
- → Variations of self-potential and unsaturated water flow with time in sandy loam and clay loam soils(2002)106 cited
- → Estimation of the Unsaturated Hydraulic Conductivity of Peat Soils: Laboratory versus Field Data(2006)101 cited
- → Simulation of dichlorprop and bentazon leaching in soils of contrasting texture using the MACRO model(1994)53 cited
- Measuring and predicting steady state infiltration rates for Arizona irrigated soils(2001)
- Design and Performance of a Large Modular Zero-Tension Lysimeter for in-situ Water Collection from Preferential Flow Paths(2009)