TOKY CO2 Z KRASOVÝCH PŮD DO VNĚJŠÍ ATMOSFÉRY
CO2 fluxes from soils into external atmosphere were studied at selected sites of the Moravian Karst. CO2 escaping from soil surface was gathered in a special measuring chamber. From time evolution of the CO2 concentration in the chamber, CO2 fluxes and soil CO2 concentrations were calculated. Both the fluxes and concentrations showed strong seasonality at all sites with maximum during the spring-summer season and minimum during autumn-winter season. The maximum of CO2 fluxes and concentrations reached 6 × 10-6 mol.m-2.s-1 and 2000 ppmv, respectively. The CO2 fluxes were significantly affected by rainfall.
Baldini, J. U. L. – Baldini, L. M. – McDermott, F. – Clipson, N. (2006): Carbon dioxide sources, sinks, and spatial variability in shallow temperate zone caves: Evidence from Ballynamintra Cave, Ireland. – Journal of Cave nad Karst Studies 68, 4–11.
Faimon, J. – Štelcl, J. – Zimák, J. – Slavík, P. (2000): Dynamika skapových vod (Císařská jeskyně, Moravský kras). Geologické výzkumy na Moravě a ve Slezsku v roce 1999, 147–149.
Tooth, A. F. (2006): Modelling of dripwater hydrology and hydrogeochemistry in a weakly karstified aquifer (Bath, UK): Implications for climate change studies. – Journal of Hydrology 321, 213–231. DOI: 10.1016/j.jhydrol.2005.08.002
Fierer, N. – Chadwick, O. A. – Trumbore, S. E. (2005): Production of CO2 in Soil Profiles of a California Annual Grassland. – Ecosystems 8, 412–429.
Ford, D. C. - Williams, P. (2007): Karst Hydrogeology and Geomorphology. – Wiley; Revised edition.
Frank, A. B. – Liebig, M. A. – Hanson, J. D. (2002): Soil carbon dioxide fluxes in northern semiarid grasslands. – Soil Biology & Biochemistry 34, 1 235–1 241.
Hashimoto, S. - Tanaka, N. – Kume, N. – Yoshifuji, N. – Hotta, N. – Tanaka, K. – Suzuki, M. (2007): Seasonality of vertically partitioned soil CO2 production in temperate and tropical forest. – Journal of Forest Research 12, 209–221. DOI: 10.1007/s10310-007-0009-9
Jassal, R. – Black, A. – Novak, M. – Morgenstern, K. – Nesic, Z. – Gaumont-Guay, D. (2005): Relationship between soil CO2 concetrations and forest-floor CO2 effluxes. – Agricultural and Forest Meteorology 130, 176–192.
Kuzyakov, Y. – Cheng, W. (2001): Photosynthesis controls of rhizosphere respiration and organic matter decomposition. – Soil Biology & Biochemistry 33, 1 915–1 925. DOI: 10.1016/S0038-0717(01)00117-1
Kuzyakov, Y. (2006): Sources of CO2 efflux from soil and review of partitioning methods. – Soil Biology & Biochemistry 38, 425-448. DOI: 10.1016/j.soilbio.2005.08.020
Nakadai, T. – Yokozawa, M. – Ikeda, H. – Koizumi, H. (2002): Diurnal changes of carbon dioxide flux from bare soil in a agricultural field in Japan. – Applied Soil Ecology 19, 161–171. DOI: 10.1016/S0929-1393(01)00180-9
Sarbu, S. M. – Lascu, C. (1997): Condesation corrosion in Movile cave, Romania. – Journal of Cave and Karst Studies 59, 99–102.
Stumm, W. - Morgan, J. J. (1996): Aquatic Chemistry: Chemical Equilibria and Rates in Natural Waters. - Wiley-Interscience; 3rd edition.
Zimmermann, M. – Meir, P. – Bird, M. – Malhi, Y. – Ccahuana, A. (2009): Litter contribution to diurnal and annual soil respiration in a tropical montane cloud forest. – Soil Biology & Biochemistry 41, 1 338–1 340.