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HERO ID
2500830
Reference Type
Journal Article
Title
Restoration of species-rich dry heaths: the importance of appropriate soil conditions
Author(s)
De Graaf, MCC; Verbeek, PJM; Bobbink, R; Roelofs, JGM
Year
1998
Is Peer Reviewed?
Yes
Journal
Acta Botanica Neerlandica
ISSN:
0044-5983
Volume
47
Issue
1
Page Numbers
89-111
Web of Science Id
WOS:000073830300008
Abstract
The aim of many rehabilitation projects in degraded ecosystems is to restore biodiversity. In order to achieve this, restoration often focuses on abiotic conditions as they are the main cause for the degradation of the ecosystem. The necessity of restoring the soil conditions for rehabilitation-of heathland vegetation is shown by this study. Three dry heathland areas were studied: an acidic species-poor heath which is degrading as a result of atmospheric nitrogen deposition, an acidified matgrass sward and an abandoned grassland. We aimed to restore the characteristic plant communities of the heathlands: a Calluno-Genistion pilosae community in the acidic species-poor heath and a Nardo-Galion saxatilis community in both the acidified matgrass sward and the abandoned grassland. Restoration methods included sod-cutting to the mineral soil layer, liming and a combination of sod cutting and liming. Effects of these methods on top soil chemistry, vegetation development and development and demography of the rare Arnica montana are shown and discussed. Furthermore, we discuss the importance of seed availability in relation to the importance of restoring soil conditions for successful rehabilitation of heathlands.
Keywords
Arnica montana; liming; nature conservation; soil acidification; sod-cutting
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