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The impact of algae on hydrophysical parameters of sandy soil

In: Acta Hydrologica Slovaca, vol. 12, no. 2
Zuzana Drongová - Henryk Czachor - Ľubomír Kováčik - Ľubomír Lichner

Details:

Year, pages: 2011, 220 - 228
Keywords:
algae; biological soil crust; sandy soil; water repellency; sorptivity; hydraulic conductivity
Original source URL: http://www.ih.savba.sk/ah
About article:
THE IMPACT OF ALGAE ON HYDROPHYSICAL PARAMETERS OF SANDY SOIL. The objective of this study was to assess an impact of algae on the persistence of water repellency, sorptivity, and hydraulic conductivity of sandy soil at a pine-forest glade at the locality Mláky II near Sekule (southwest Slovakia). The coccal alga Choricystis minor from division Chlorophyta, and filamentous algae Klebsormidium subtile from division Charophyta and Tribonema minus from division Stramenopila were isolated from the top layer of this soil. The monoalgal and bialgal (Ch. minor + K. subtile) crusts were grown in laboratory conditions on the sterilized pure sand (collected in the glade site at the depth of 50 cm) for 3, 5, 7, 9, 11, 13, 15, 17, 19, and 21 days. Hydrophysical parameters of the crusted sand were estimated at the end of each selected growth stage after drying at 50°C for 15 hours (simulation of three days lasting hot and dry spell). The growth of algal crust, characterized by an increase in organic carbon content from 0.16% to 0.33%, resulted in an increase in water drop penetration time (parameter of the persistence of water repellency) and a drop in sorptivity and hydraulic conductivity for all the dried crusts. The water repellency cessation time increased with an increase in both the water drop penetration time of the crust and the thickness of the water repellent layer.
How to cite:
ISO 690:
Drongová, Z., Czachor, H., Kováčik, Ľ., Lichner, Ľ. 2011. The impact of algae on hydrophysical parameters of sandy soil. In Acta Hydrologica Slovaca, vol. 12, no.2, pp. 220-228. 2644-4690.

APA:
Drongová, Z., Czachor, H., Kováčik, Ľ., Lichner, Ľ. (2011). The impact of algae on hydrophysical parameters of sandy soil. Acta Hydrologica Slovaca, 12(2), 220-228. 2644-4690.