Vernatten, de belangrijkste herstelmaatregel in hoogveenrestanten, heeft niet altijd het gewenste effect. Waarom dat zo is, is grotendeels nog onbekend. De auteurs beargumenteren dat recente inzichten uit empirische en experimentele studies in hoogveenherstelprojecten moeten worden gebruikt om de bestaande theoretische modellen uit te breiden, om deze vervolgens te kunnen gebruiken in het ontwikkelen van effectieve, gebiedspecifieke herstelplannen. Hierdoor kan de droom van zelfregulerende hoogvenen in Nederland wellicht op niet al te lange termijn werkelijkheid worden

Eppinga, M.B.

Limpens, J.

Robroek, B.J.M.

Schouten, M.G.C.

Wassen, M.J.

Dutch

NARCIS 

Hoogveenherstel in Nederland: meer dan een droom

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Wageningen Yield 

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.</p

Hoogveenherstel in Nederland: meer dan een droom

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Southampton (e-Prints Soton)