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Comparison of soil solution chemistry in zero tension and ceramic‐cup tension lysimeters
Author(s) -
HENDERSHOT W. H.,
COURCHESNE F.
Publication year - 1991
Publication title -
journal of soil science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.244
H-Index - 111
eISSN - 1365-2389
pISSN - 0022-4588
DOI - 10.1111/j.1365-2389.1991.tb00104.x
Subject(s) - lysimeter , tension (geology) , chemistry , surface tension , soil water , significant difference , environmental chemistry , soil science , environmental science , materials science , mathematics , thermodynamics , composite material , physics , statistics , ultimate tensile strength
SUMMARY The chemistry of soil solutions collected from plastic 0‐tension and ceramic‐cup tension lysimeters was compared. Except for NO − 3 there was no systematic difference in the chemistry of major cations, anions, pH or Al speciation of the solutions collected by the two types of lysimeter. although there were some differences at both 25 and 75 cm depths, on such occasions the difference at the other depth was either in the apposite direction or non‐significant. The concentration of NO − 3 was significantly lower in the 0‐tension lysi meters and, although the mechanism is not clearly understood, this may be due to uptake by micro‐organisms feeding on fine organic matter particles in these solutions. The choice of lysimeter can be based on the objectives and constraints of the research project, rather than on the fact that the soil solution is more representative with one type of lysimeter than another.