STRATIFIKACE CO2 V PŮDNÍM VZDUCHU (MORAVSKÝ KRAS)

Martin Blecha, Jiří Faimon

Abstrakt

Soil CO2 is important part of the global carbon cycle. In karst, it controls fundamental processes as limestone dissolution and calcite speleothem growth. Dynamics and mechanisms of soil CO2 production are still little known. This study contributes to their better understanding. On the selected sites of Moravian Karst with different vegetation cover, the CO2 stratification in the free air of soil drill-hole was studied during both non-vegetation and early vegetation periods. At all sites, CO2 concentrations were found to increase with depth of air column. In spring, the agricultural soils (field) and the soil under grassy vegetation (sinkhole) showed the enormous gradients in CO2 concentrations, up to 1000 ppmv per one dm of length, towards the depth. A conceptual model was proposed to discuss in detail the gradient evolution.

Bibliografická citace

Blecha, M., & Faimon, J. (2013). STRATIFIKACE CO2 V PŮDNÍM VZDUCHU (MORAVSKÝ KRAS). Geologické výzkumy na Moravě a ve Slezsku, 20(1-2). Získáno z https://journals.muni.cz/gvms/article/view/1566

Klíčová slova

CO2 concentration, Moravian Karst, soil air, stratification

Plný Text:

Reference

Zobrazit literaturu Skrýt literaturu

Faimon, J. – Štelcl, J. – Zimák, J. – Slavík, P. (2000): Dynamika skapových vod (Císařská jeskyně, Moravský kras). – Geologické výzkumy na Moravě a ve Slezsku, 147–149.

Faimon, J. – Štelcl, J. – Schwarzová, M. – Zajíček, P. – Zimák, J. (2006): Recentní krasové procesy: destrukce speleotém. – Závěrečná zpráva GAČR 205/03/1128, pp. 1–47.

Fairchild, I. J. – Frisia, S. – Borsato, A. – Tooth, A. F. (2006): Speleothems. In: Nash, D. J. – McLaren, S. J. (eds), Geochemical Sediments and Landscapes, Blackwells, Oxford.

Fierer, N. – Chadwick, O. A. – Trumbore, S. E. (2005): Production of CO2 in Soil Profi les of a California Annual Grassland. – Ecosystems 8, 412–429.

Ford, D. – Williams, P. (2007): Karst Hydrogeology and Geomorfology. – Wiley, Revised edition.

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 concentrations and forest-fl oor CO2 effl uxes. – Agricultural and Forest Meteorology 130, 176–192. DOI: 10.1016/j.agrformet.2005.03.005

Jobbágy, E. G. – Jackson, R. B. (2000): The vertical distribution of soil organic carbon and its relation to climate and vegetation. – Ecological Applications 10, 443–436. DOI: 10.1890/1051-0761(2000)010[0423:TVDOSO]2.0.CO;2

Kuzyakov, Y. – Cheng, W. (2001): Photosynthesis controls of rhizosphere respiration and organic matter decomposition. – Soil Biology & Biochemistry 33, 1915–1925. DOI: 10.1016/S0038-0717(01)00117-1

Kuzyakov, Y. (2006): Sources of CO2 effl ux from soil and review of partitioning methods. – Soil Biology & Biochemistry 38, 425–448. DOI: 10.1016/j.soilbio.2005.08.020

Li, T. – Wang, S. – Zheng, L. (2002): Comparative study on CO2 sources in soil developed on carbonate rock and non-carbonate rock in Central Guizhou. – Science in China (series D) 45, 8, 673–679.

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

Němeček, J. et al. (2011): Taxonomický klasifi kační systém půd České republiky. 2. upravené vydání. – ČZU, Praha.

Rayment, M. B. – Jarvis, P. G. (2000): Temporal and spatial variation of soil CO2 efflux in Canadian boreal forest. – Soil Biology & Biochemistry 32, 35–45. DOI: 10.1016/S0038-0717(99)00110-8

Risk, D. – Kellman, L. – Beltrami, H. (2002): Carbon dioxide in soil profi les: Production and temperature dependence. – Geophysical research letters 29, 6, 1–4.

Sarbu, S. M. – Lascu, C. (1997): Condensation corrosion in Movile cave, Romania. – Journal of Cave and Karst Studies 59, 99–102.

Schlesinger, W. H. – Andrews, J. A. (2000): Soil respiration and the global carbon cycle. – Biogeochemistry 48, 7–20. DOI: 10.1023/A:1006247623877

Stumm, W. – Morgan, J. J. (1996): Aquatic chemistry: Chemical Equilibria and Rates in Natural Waters. – Wiley-Interscience; 3rd edition.

Vopravil, J. et al. (2009): Půda a její hodnocení v ČR. 1 díl. – VÚMOP, v. v. i., Praha

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, 1338–1340. DOI: 10.1016/j.soilbio.2009.02.023