Ongoing succession of biological soil crusts increases water repellency — a case study on Arenosols in Sekule, Slovakia
| Autor: | Sylvie Drahorad, Ľubomír Lichner, Daniel Steckenmesser, Marek Rodný, Peter Felix-Henningsen |
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| Rok vydání: | 2013 |
| Předmět: |
chemistry.chemical_classification
animal structures urogenital system Sorptivity viruses fungi Soil science Cell Biology Plant Science Ecological succession Soil surface biochemical phenomena metabolism and nutrition Biochemistry chemistry Soil water Genetics Surface structure Environmental science Animal Science and Zoology Organic matter Water conductivity Transect Molecular Biology Ecology Evolution Behavior and Systematics |
| Zdroj: | Biologia. 68:1089-1093 |
| ISSN: | 1336-9563 0006-3088 |
| DOI: | 10.2478/s11756-013-0247-6 |
| Popis: | After soil surface disturbances biological soil crusts (BSC) cover rapidly the topmost soil millimeters. Depending on BSC age, development of soil water repellency, water infiltration and soil surface stability are influenced by this thin surface sealing. Within this study disturbed, early- mid- and late successional stages of BSC development were examined along a recovery transect. The results show an increase in water repellency and a decrease in water sorptivity and conductivity with ongoing BSC succession. Penetration resistance data shows very stable thin surface protection by cyanobacteria in early successional BSC that is non-repellent. Later successional stages show increased water repellency and lower water conductivity. We conclude that BSC development induces changes in surface structure and wettability. The soil surface wettability is strongly linked to the BSC community composition. |
| Databáze: | OpenAIRE |
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