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Water Vapor Adsorption as Related to Liming of Acidic Sandy Forest Soil
Author(s) -
Sokolowska Z.,
Józefaciuk G.,
Sokolowski S.,
Renger M.,
Wilczynski W.
Publication year - 1993
Publication title -
zeitschrift für pflanzenernährung und bodenkunde
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 87
eISSN - 1522-2624
pISSN - 0044-3263
DOI - 10.1002/jpln.19931560607
Subject(s) - adsorption , maxima , water vapor , exponential function , energy distribution , chemistry , energy (signal processing) , distribution (mathematics) , sorption isotherm , soil science , mathematics , environmental science , atomic physics , physics , statistics , mathematical analysis , art , organic chemistry , performance art , art history
Water vapor adsorption isotherms were measured for soil samples taken from five subsequent 10 cm layers of limed and unlimed Cambic Arenosol under forest. Applying the numerical approximation of adsorption isotherms with an exponential isotherm equation and a local BET model, the surface areas, average adsorption energies and adsorption energies distribution functions were calculated. The values of average adsorption energies increased slightly with the depth of the layer, however no marked differences were observed between the average energies for the equivalent layers of both limed and unlimed profiles. For unlimed profiles the energy distribution functions possessed two maxima, the smaller maximum, however, disappeared in limed profile.