The influence of different soil vegetation covers onto the volumetric water content in upper soil layers
The influence of different vegetation covers of the set-aside land on the volumetric water content (VWC) and its variations during the day in upper soil layers (5 and 15 cm) was observed using the TDR method in 15 min intervals from May to August in 2002 and 2003. A spontaneous fallow was established in autumn 2001 and plots with artificial revegetation sowed with the mixture of Dactylis polygama and Trifolium repens in spring 2002. The experimental plots were mulched twice during the vegetation period. VWC was registered in the same time also on bare ground.