Figure 2. Map of the Special area showing ecosystems and
sample areas. Key: A. Quercus robur-Oxalis acerosella ecosystem;
B. Quercus robur-Geumrivale ecosystem; C = Quercusrobur-
Athyriumfilix-femina ecosystem, D = Clearing phase
of ecosystem A and B; E = Filipendula ulmaria ecosystem; F =
Carex flacca ecosystem and G = Carex caespitose ecosystem.
In the sample area for ecosystem A the situation of 16 litter
traps and 12 rain gauges are shown.