Die Messung des Benetzungswinkels von Bodenfilmen nach einem Plattenkontaktverfahren

Measurement of wetting angles of soils using films grown on glas plates Glas plates (microscope mounts) were bedded into 5 soils (A_h-horizons) and incubated for 3 months. Wetting angles against water were measured with a special microscope on the films that developed on the mounts. Results showed higher values than those, obtained on films that were prepared by drying water- or NaOH-extracts on the mounts. Values were considerably lower however than those obtained at earlier measurements or reported by other investigators using indirect methods. The reason for this difference might be inadequacy of the indirect methods, different angle conditions (wetting or transient state) or low age of incubation films.