ISSN:
1573-5036
Keywords:
Adsorption
;
Calcium
;
Calcium carbonate
;
Cation Exchange Capacity
;
Hydrogen
;
Magnesium
;
Moss
;
pH
;
Potassium
;
Sodium
;
Soil preference
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Summary Moss species with a different soil preference with respect to its acidity and carbonate content also differ in their cation exchange capacity (leaf, stem, rhizoid), the acidiphile-calcifuges having lower C.E.C. values than the neutrophile-calcicoles. The higher the C.E.C. value, the more the divalent cations calcium and magnesium tend to be adsorbed as compared to the monovalents sodium and potassium, from an equinormal tetracationic solution. The increase in divalent adsorption is mainly due to calcium. Considering this differential adsorption of calcium and in view of data in literature on membrane characteristics, it appears that among the studied cations calcium is an important factor in the observed soil preference through its presence in the cell wall adsorbed fraction and thus in the membrane environment.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02374752
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