Temperature influences water sorptivity of soil aggregates

Rok, strany: 2013, 84 - 87

The aim of this study was to determine the potential development of water sorptivity of soil aggregates by heating. Soil aggregates were sampled from arable layer of 5 Polish soils: Haplic Luvisol 1 from Czesławice, Haplic Luvisol 2 from Wierzchucinek, Haplic Cambisol from Felin, Gleyic Mollic Cambisol from Chylice, and Haplic Phaeozem from Grabiec. Three aggregates of each soil type with minimum diameter between 4 and 10 mm were heated in the oven for at least 3 hours at temperatures 20, 100, 200, 250, and 360°C. After each temperature treatment the soil aggregates were conditioned at the room temperature for 16 hours. Laboratory measurements of water sorptivity of soil aggregates were performed under a negative tension h0 = –2 cm using tension infiltrometer. It was found that the exposure to temperatures between 100 and 200°C tends to decrease water sorptivity of aggregates from all the studied soils but one (Haplic Luvisol 1), followed by about two- to four-fold increase in water sorptivity for exposure to temperatures of 250°C (in Haplic Luvisol 1, Haplic Luvisol 2, and Haplic Phaeozem) or 360°C (in Haplic Cambisol and Gleyic Mollic Cambisol).

ISO 690:

Czachor, H., Lichner, L. 2013. Temperature influences water sorptivity of soil aggregates. In Journal of Hydrology and Hydromechanics, vol. 61, no.1, pp. 84-87. 0042-790X (until 2019) .

APA:

Czachor, H., Lichner, L. (2013). Temperature influences water sorptivity of soil aggregates. Journal of Hydrology and Hydromechanics, 61(1), 84-87. 0042-790X (until 2019) .