Hoogveenherstel in nederland: Meer dan een droom

Robroek, Bjorn, Eppinga, Maarten, Limpens, Juul, Wassen, Martin and Schouten, Matthijs (2009) Hoogveenherstel in nederland: Meer dan een droom. Landschap, 26 (1), 17-26.

Abstract

In deteriorated bogs, restoration measures mainly focus on re-wetting. These measures, however, do not necessarily result in the re-establishment of a complete set of peat mosses (Sphagnum). In most cases only Sphagnum species typical for lawns or hollows re-establish. Unsuitable environmental conditions for re-establishment of hummock species might be a bottleneck. This paper focuses on this bottleneck combining results of modelling studies with empirical and experimental research in bog restoration projects. Modelling studies suggest that raised bog vegetation shows bi-stability: both the hollow state and the hummock state are alternate stable equilibrium states, needing a substantial perturbation to go from one state to another. Recent empirical research identifies inter specific competition for (rain)water between hummock and hollow Sphagnum species as the key process causing this bi-stability. The ability of transplants of typical hummocks species to re-establish in restored bogs relates to patch sie, physical properties of the peat, and environmental conditions, and merits further study. We argue that the recent insights from empirical studies should be incorporated in the theoretical models, so that these expanded models can be used to design effective, site-specific restoration strategies. With such knowledge restoring bogs may become more than just a dream.

This record has no associated files available for download.

Contributors

Author: Bjorn Robroek

Download statistics