Articles by Barbora Uherková

In this study we determined the effect of transformation of a mature sessile oak forest stand into a coppiced forest, and of thinning and throughfall reduction in a coppice stand on soil water content (SWC) and soil CO₂ efflux. The precipitation reduction was induced by installing parallel drainage channels in both unthinned and thinned coppice stands. The driving factor for temporal dynamics of soil CO₂ efflux in all plots was soil temperature. The other factor was soil water content but only up to about 15%. Above this threshold, there was no more effect on CO₂ efflux. We found no clear difference in SWC or soil CO₂ efflux between the mature and coppiced stand eight years after harvesting. On the other hand, thinning of the coppice stand resulted in increase in SWC up to 22% in proportion, which we assume to be a result of increased gap fraction of the canopy. However, no effect on soil CO₂ efflux was observed two years after the thinning. Installation of the drainage channels in two plots covering 30% of the ground area resulted in decrease in SWC up to a proportional 30.5% and thus contributed up to 50.7% reduction in soil CO₂ efflux.

• Dařenová, Global Change Research Institute CAS, v.v.i., Belidla 4a, 603 00 Brno, Czech Republic E-mail: darenova.e@czechglobe.cz
• Crabbe, Global Change Research Institute CAS, v.v.i., Belidla 4a, 603 00 Brno, Czech Republic E-mail: crabbe.r@czechglobe.cz
• Knott, Mendel University in Brno, Zemedelska 3, 613 00 Brno, Czech Republic E-mail: robert.knott@mendelu.cz
• Uherková, Mendel University in Brno, Zemedelska 3, 613 00 Brno, Czech Republic E-mail: xfedorov@node.mendelu.cz
• Kadavý, Mendel University in Brno, Zemedelska 3, 613 00 Brno, Czech Republic E-mail: jan.kadavy@mendelu.cz