Artikkelit jotka sisältää sanan 'rehabilitation'
Nursing plants in peatland restoration: on their potential use to alleviate frost heaving problems.
Avainsanat:
Sphagnum;
revegetation;
regeneration;
rehabilitation;
colonisation;
degraded mire;
peat erosion
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Peatland restoration measures usually require the rewetting of the disturbed ecosystem. In northern latitudes, the increase in wetness of the bare peat substrate causes frost heaving. In this paper, we described the problem of frost heaving in cutover peatlands and an array of means whereby it can be diminished. Several avenues of research should be pursued with the use of nursing plants to reduce frost heaving and promote Sphagnum establishment and growth. For large scale restoration of peatland ecosystems, Polytrichum strictum appears to be a good potential nursing plant to Sphagnum. However the importance of competition between polytric and Sphagnum is unknown and we do not know under which conditions the association is beneficial or not.
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Groeneveld,
Groupe Recherche en Écologie des Tourbières and Centre d'Études Nordiques, Pavillon Paul-Comtois, Université Laval, Québec, Canada
Sähköposti:
ei.tietoa@nn.oo
- Rochefort, Sähköposti: ei.tietoa@nn.oo
Kohosoiden luonnontilaan palauttaminen turpeen noston jälkeen Luoteis-Saksassa.
English title: Raised bog regeneration after peat harvesting in North-West Germany.
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An increasing awareness of the environment and the wide extension of mined peatlands require actions and measurements in order to ensure their regeneration and protection. A brief description of the most important peat harvesting methods in North-West Germany shows the stratigraphy of peatlands after exploitation has been finished and ecotechnological actions have been started to initiate a raised bog regeneration. The actions and measurements applied depend also on the properties of the peat as on the properties of the top spit layer. The requirements for a successful rewetting of peatlands will be shown. The terminology concerning the subject of raised bog regeneration will be explained.
Keywords: nature protection, peatlands, rehabilitation, top spit
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Roderfeld,
Institute of Soil Technology Bremen, Geological Survey of Lower-Saxony, Friedrich-Mifller-Str. 46/50, D-2800 Bremen, Germany
Sähköposti:
ei.tietoa@nn.oo
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