Bestandsaufnahme des Hochmoors Salgenreute (Krumbach, Vorarlberg) vor seiner Renaturierung
Brach, Sarah (Universität Innsbruck. Institut für Botanik)
Carnicero, Pau (Universität Innsbruck. Institut für Botanik)
Schönswetter, Peter (Universität Innsbruck. Institut für Botanik)

Data:	2025
Descripció:	27 pàg.
Resum:	Bogs are humid ecosystems that strongly contribute to regional biodiversity due to their special species composition. They harbor rare plant species that are adapted to permanent moisture. They also provide important ecosystem services by acting as a carbon sink or minimizing the risk of flooding. In Austria, around 90 % of bogs are in a poor condition. To counteract this, it is important to restore these ecosystems to a near-natural state. The renaturation of the drained Salgenreute bog in the municipality of Krumbach in Vorarlberg is intended to make a contribution to this effort. Conducted in cooperation with the Naturpark Nagelfluhkette, this study provides a monitoring basis for gathering experience of renaturation and future renaturation projects. Before the renaturation was performed, the current condition of the bog was determined by means of vegetation analyses. For this purpose, 100 permanent observation plots were installed along six transects. All vascular plant and moss species and their cover were recorded on these plots. The surveys show a division of the Salgenreute bog into a largely intact raised bog core and a neighboring degraded raised bog area along a moisture gradient. The degradation was caused by drainage and eutrophication. This is also reflected in the strongly fluctuating water levels, which are too low for an intact raised bog with an intact acrotelm. Nevertheless, some species on the Red List of endangered mosses in Vorarlberg and the Red List of ferns and flowering plants in Vorarlberg can be found in the bog. For example, two species threatened with extinction and nine highly endangered species have been recorded. In consideration of the renaturation programs already carried out in Vorarlberg, the prognosis for the Salgenreute bog is positive. The rewetted areas have given bog-specific species the chance to establish and increase their population sizes. Similar trends have been observed in comparable bogs such as the Götzner Moos six years after its renaturation. Additional photomonitoring can be recommended for future monitoring in order to quickly recognise negative changes in the transition phase and initiate countermeasures, if necessary. Furthermore, future monitoring should focus on the transects crossing the core of the raised bog. Promoting renaturation projects such as those in the Salgenreute bog is essential in order to fulfill Austria's 2030 bog strategy and to protect the bog ecosystem.
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Llengua:	Alemany
Document:	Article ; recerca ; Versió publicada
Matèria:	Bog ; Renaturation ; Monitoring ; Red list ; Naturpark Nagelfluhkette ; Vorarlberg
Publicat a:	Inatura Forschung online, Vol. 133 (2025), p. 1-27

Adreça alternativa: https://www.inatura.at/fileadmin/www.inatura.at/Forschung-Online/ForschOn_2025_133_0001-0027.pdf

27 p, 3.6 MB

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