Premium
SOME MEASUREMENTS OF AIR SPACE IN SCOTTISH SOILS
Author(s) -
ROMANS J. C. C.
Publication year - 1959
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.1365-2389.1959.tb02343.x
Subject(s) - soil water , gleysol , horizon , drainage , soil science , soil horizon , hydrology (agriculture) , environmental science , mathematics , geology , geotechnical engineering , biology , geometry , ecology
Summary Total air‐space values are related to the hydrologic sequence of soils as described by Glentworth and Dion. The greatest differences within the profile are found in freely drained soils, where from a value of approximately 50 per cent. air space in the B 2 horizon there is a drop to 25–35 per cent.(depending on the type of parent material) in the indurated B 3 horizon. Imperfectly drained soils have a slightly lower air space in the B 2 horizon and values decrease below. Poorly drained soils commonly have values between 35 and 40 per cent. and very poorly drained soils values between 30 and 35 per cent. The tendency for values to decrease in the lower horizons of a gley profile becomes less as the natural drainage conditions deteriorate.