Some production-ecological and microbiological characteristics of floodplain forests in the Morava river inundation area

In the alluvium of the Morava river the ecological characteristics of the floodplain forest in the flooded and non-flooded areas were studied. The Fraxino pannonicae-Ulmetum was the forest community which covered all the study areas. Considerable differences between flooded and non-flooded areas were registered, especially as regards the community structure, presence and abundance of taxons and the productivity of biomass, although the distances between the areas compared were 100-200 m only. Floodwater was considered as a limiting factor. From the microbiological point of view the flooded areas with dominating bacterial communities wore richer in C-bio microbial biomass, but the respiration activity was decreased. High values of Ac cellulolythic activity indicated good turnover of organic matter, i.e. it was sufficient for a healthy and good quality floodplain forest.