Leaching of ions from a forested Typic Udipsamment by acidified throughfall, Denmark

• Published in: Geoderma Vol. 43; no. 1; pp. 33 - 47
• Main Authors: Rasmussen, Lennart, von Freiesleben, Niels Erik, Jørgensen, Preben
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.10.1988; Elsevier
• Subjects: ACID RAIN; ACIDEZ; ACIDITE; ACIDITY; Agronomy. Soil science and plant productions; Biological and medical sciences; Chemical, physicochemical, biochemical and biological properties; DANEMARK; DENMARK; DEPERISSEMENT TERMINAL; DIEBACK; DINAMARCA; Earth sciences; Earth, ocean, space; Exact sciences and technology; FOREST SOILS; Fundamental and applied biological sciences. Psychology; Geochemistry; ION; IONES; IONS; LLUVIA ACIDA; MARCHITEZ DESCENDENTE; Mineral components. Ionic and exchange properties; Physics, chemistry, biochemistry and biology of agricultural and forest soils; PLUIE ACIDE; Soil and rock geochemistry; Soil and water pollution; Soil science; SOL DE FORET; SUELO FORESTAL; Short term; Laboratory study; Acid soil; Soil column; Europe; Acidification; Acid rains; Forest soil; Leaching; Entisols; Soils; Ion mobility; Artificial forest stand; Gymnospermae; Softwood forest tree; Denmark; Lixiviation; Coniferales; Spermatophyta; Experimental studies; Ion exchange; Physicochemical properties; Field study
• ISSN: 0016-7061; 1872-6259
• DOI: 10.1016/0016-7061(88)90053-5

Amounts were determined of aluminium, sodium, calcium, magnesium, potassium, iron, manganese, zinc, nickel, cadmium, ammonium, nitrate, sulphate and chloride leached from soil columns by either natural or acidified throughfall. The columns were collected from an acidic Typic Udipsamment under spruce forest. Some columns were replaced in their original sites for study, whereas others were studied in the laboratory. Comparisons were also made with results of a parallel study using ceramic cups for extracting water from soils. In the laboratory experiments even a slight decrease in the applied throughfall pH (from pH 3.6 to 3.3) induced a significant increase in the leaching of Mn and Cd. Further decreasing the pH of the throughfall to 2.8 increased the leaching of most elements. In comparison with the results obtained using ceramic cups, the technique of using soil column lysimeters implied increased nitrification and mineralization in the soil both in the laboratory and in the field. Dissolution of aluminium was in all cases the dominant buffering process. Sulphate accumulation was also an important buffering process, but only in the laboratory experiments.