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SOILS
Author(s) -
PEREIRA H. C.
Publication year - 1956
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.1365-2389.1956.tb00863.x
Subject(s) - soil water , soil science , drainage , environmental science , infiltration (hvac) , water content , surface tension , geotechnical engineering , geology , materials science , composite material , ecology , physics , quantum mechanics , biology
Summary The ability of the soil surface to accept continuous heavy rainfall is a critical factor in the prevention of accelerated erosion of tropical soils. The qualities required in the soil are complex, and are not easily inferred from simple laboratory measurements. A direct test has therefore been developed for this property. Large soil cores of undisturbed structure are brought to a standard moisture tension, and are subjected to heavy artificial rainfall of controlled drop‐size and intensity. The drainage tension is maintained at a constant value, and the rate of infiltration is measured. The apparatus is described in detail. Examples of results from a tropical rotation experiment are given, in comparison with porespace and percolation measurements.