Unterschiede
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| Beide Seiten der vorigen Revision Vorhergehende Überarbeitung Nächste Überarbeitung | Vorhergehende ÜberarbeitungLetzte ÜberarbeitungBeide Seiten der Revision | ||
| thesis:co2dissolution [2016/01/12 20:18] – a.hartmann | thesis:co2dissolution [2018/08/13 12:37] – a.hartmann | ||
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| - | ===== Dissolution of CaCO3 as non-steady state phenomenon? The effect of precipitation characteristics and soil on CaCO3 relocation and its relevance for karst formation ===== | + | ===== Dissolution of CaCO3 as non-steady state phenomenon? The effect of precipitation characteristics and soil on CaCO3 relocation and its relevance for karst formation |
| == Motivation == | == Motivation == | ||
| Dissolution of CaCo3 in calcareous soils is mainly governed by CO2 which forms a weak but ubiquitous acid in the aqueous phase. It is generally assumed, that it is mainly the CO2 concentration and the discharge control the re-location of CaCO3, and thus the further formation of soil and karst. In most cases soil and karst systems are considered to be static and that the CaCO3 dissolution process is a steady state process, that can be derived from the amount of water infiltrating into the deeper soil or karst system, and the mean CO2 concentration in the deeper soil (Williams 1983). | Dissolution of CaCo3 in calcareous soils is mainly governed by CO2 which forms a weak but ubiquitous acid in the aqueous phase. It is generally assumed, that it is mainly the CO2 concentration and the discharge control the re-location of CaCO3, and thus the further formation of soil and karst. In most cases soil and karst systems are considered to be static and that the CaCO3 dissolution process is a steady state process, that can be derived from the amount of water infiltrating into the deeper soil or karst system, and the mean CO2 concentration in the deeper soil (Williams 1983). | ||
| Zeile 8: | Zeile 8: | ||
| We want to test the effect of different precipitation regimes on CaCO3 re-location using soil samples from different sites (e.g. Schönberg, Vogtsburg, Hartheim).The sites will have different characteristics regarding, saturated and unsaturated conductivity, | We want to test the effect of different precipitation regimes on CaCO3 re-location using soil samples from different sites (e.g. Schönberg, Vogtsburg, Hartheim).The sites will have different characteristics regarding, saturated and unsaturated conductivity, | ||
| == Betreuung/ | == Betreuung/ | ||
| - | Andreas Hartmann, | + | Andreas Hartmann, |
| == Special notes == | == Special notes == | ||
| none. | none. | ||
| Zeile 23: | Zeile 23: | ||
| Maier, M., Schack-Kirchner, | Maier, M., Schack-Kirchner, | ||
| Williams, P.W., 1983. The role of the subcutaneous zone in karst hydrology. Journal of Hydrology 61, 45–67 | Williams, P.W., 1983. The role of the subcutaneous zone in karst hydrology. Journal of Hydrology 61, 45–67 | ||
| - | {{tag> | + | {{tag> |