Wissenschaftliche Publikationen der HSWT

Dr. Michelangelo Olleck, Dr. Birgit Reger, Prof. Dr. Jörg Ewald

Berechtigungen: Peer Reviewed

Questions: Although thick forest floors overlying unweathered bedrock are important resources for mountain forests' functioning, their actual distribution is poorly known and difficult to delimit in the field. We therefore asked: (a) What is the specific composition of vegetation growing on Folic Histosols; (b) can indicator plants be used to detect Folic Histosols in mountain forests; (c) what do functional traits of plant indicators tell about the ecological properties of Folic Histosols? Location: Northern Calcareous Alps, south Germany. Methods: Based on representative stratified sampling of joint vegetation plots and soil profile descriptions, we estimated the frequency and thickness of Folic Histosols, determined the proportion of compositional variation specifically attributable to forest floor thickness using ordination, applied Indicator Species Analysis and searched for typical traits and ecological requirements of indicator species. Results: The co-existence of acidophilic and calciphytic plants is typical for the tessellated occurrence and the successional origin of Folic Histosols. In the study region, the detection of Folic Histosols on pure limestone or dolomite by ground vegetation works very well. Particularly acidophilic plants are suitable indicators for thick forest floors. The indicator value of bryophytes and Ericaceae for Folic Histosols is likely related to the colonization of rotten wood. Folic Histosol indicator species are widely spread in the allocation to sociology group, which ranges from open landscapes to dark forests and reflects successional origin. Conclusions: In mountain forests on carbonate bedrock, thick humus layers often occur next to bare rock. This tessellated structure can also be detected in the ground vegetation, where acidophilic and calciphytic plants occur side by side. Thick Folic Histosols in late successional forests are dominated by acidophilic plants colonizing rotten wood. Thus, the detection of Folic Histosols by understorey species is an easy and cost-effective possibility and one key to protect these vulnerable forest sites.

Veröffentlichungen der HSWT

Plant indicators for Folic Histosols in mountain forests of the Calcareous Alps (2019) Applied Vegetation Science 23 (2), S. 285-296. DOI: 10.1111/avsc.12470

Humus on the rocks (2019) forschungsfelder - BMEL-Magazin für Ernährung und Landwirtschaft (3), S. 20.

Alpenhumus als klimasensitiver C-Speicher und entscheidender Standortfaktor im Bergwald (2019) Posterpräsentation am 1. Netzwerktreffen und der feierlichen Eröffnung des BayWISS Verbundkollegs "Life Sciences und Grüne Technologien" in Freising, Novermber 2019 .

Black beauty on the rocks – distribution, function and C-storage potential of Tangel humus in the Calcareous Alps (2019) Vortrag auf dem 10th IALE World Congress in Mailand, Juli 2019 .

Alpenhumus als klimasensitiver C-Speicher und entscheidender Standortfaktor im Bergwald (2019) Posterpräsentation auf dem Jahreskolloquium des Bayerischen Wissenschaftsforums in Regensburg, Juni 2019 .

Tangelhumus in den Bayerischen Alpen - Verbreitung & Detektion anhand der Bodenvegetation (2019) Vortrag in der Seminarreihe "Aspekte der Waldökosystemforschung" in Freising, Januar 2019 .

Verbreitung von mächtigen Humusauflagen und deren Potential als C-Speicher in den Bayerischen Kalkalpen (2018) Vortrag auf der Forstwissenschaftlichen Tagung in Göttingen, September 2018 .

Vegetation-based detection of thick forest floors and their decline in the Calcareous Alps (2018) Vortrag auf dem 7th workshop ("Vegetation Databases and Detection of Environmental Change") of the German working group on vegetation databases in Jena, März 2018 .

Betreuung der Publikationsseiten

Gerhard Radlmayr

Semiha Savas

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