Lysimeter analyses

The reservoir materials may be PVC, stainless steel, or a fluorocarbon polymer, and the porous cup may be constructed of ceramic, stainless steel, or fluorocarbon polymer. Ceramic cups have a smaller pore size, a greater bubble pressure (pressure under which the cup produces bubbles), and a greater operational suction range, and are preferred to other porous cup materials. All materials used for the construction of the suction lysimeter should be tested in the laboratory to determine if any bias in the sample analysis will result from their use. 

Depending on factors such as watershed slope, depth of water table, antecedent soil moisture, and barriers to precipitation and throughfall infiltration, DOM from the forest floor and organic soil horizon can contribute a large flux of allochthonous DOM to surface waters. Soil solution for DOM analysis is typically collected with zero-tension lysimeters placed at the boundary between organic soil and mineral soil. 

Kayser EG, Burlinson NE. 1988. Migration of explosives in soil Analysis of RDX, TNT, tetryl from a carbon-14 lysimeter study. J Energetic Material 6 45-71. 

Lopez-Avila, V. Hirata, P. Kraska, S. Flanagan, M. and Taylor, J. H., Jr. "Analysis of Water and Soil Samples from Lysimeter Columns," Acurex Final Report prepared for EPA-Las Vegas, Environmental Assessment Division, EPA Contract... 

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