Die chronologische Liste zeigt aktuelle Veröffentlichungen aus dem Forschungsbetrieb der Hochschule Weihenstephan-Triesdorf. Zuständig ist das Zentrum für Forschung und Wissenstransfer (ZFW).
Jörg Pfadenhauer,
Prof. Dr. Jörg Ewald,
Norbert Hölzel
Northern limestone prealps: Brauneck and Benediktenwand Mts (2001) Pfadenhauer, J., Albrecht, H. & Erschbamer, B. (eds.): Post-symposium excursion, 44th IAVS Symposium 29 July - 4 August 2001 Freising-Weihenstephan, Germany, S. 46-65. Department of Ecology TUM, Freising .
Prof. Dr. Jörg Ewald,
Markus Reuther,
J. Nechwatal,
K. Lang
Projekt Monitoring von Schäden in Waldökosystemen des bayerischen Alpenraumes (2000) Materialien des Bayerischen Staatsministeriums für Landesentwicklung und Umweltfragen, Vol. 155, 235 S .
Prof. Dr. Jörg Ewald
Long-term impact of forest pasture on the understorey of mountain forests in the Tegernsee Alps (Bavaria) (2000) Zeitschrift für Ökologie und Naturschutz 9 , S. 161-171.
Prof. Dr. Jörg Ewald
Berechtigungen: Peer Reviewed
Leidet die Buche (Fagus sylvatica L.) auf Carbonatböden der Bayerischen Alpen an Phosphormangel? (2000) Forstwissenschaftliches Centralblatt 119 , S. 276-296.
Prof. Dr. Jörg Ewald
Berechtigungen: Peer Reviewed
Rezension von Hunter, M. L. Jr. (Hrsg.): Maintaining Biodiversity in Forest Ecosystems (2000) Forstwissenschaftliches Centralblatt 119 , S. 245-246.
Prof. Dr. Jörg Ewald
Berechtigungen: Open Access
Berechtigungen: Peer Reviewed
The Partial Influence of Norway Spruce Stands on Understorey Vegetation in Montane Forests of the Bavarian Alps (2000) Mountain Research and Development 20 (4), S. 364-371.
DOI: 10.1659/0276-4741(2000)020[0364:TPIONS]2.0.CO;2
Natural mixed forests of European beech (Fagus sylvatica), Norway spruce (Picea abies), and silver fir (Abies alba) were widely replaced by spruce-dominated stands in the montane belt of the northern Calcareous Alps in historical times. This accounts for changing forest structure, diversity, and hemeroby. Observations in other parts of Europe suggest that this development should have led to a replacement of the native understorey vegetation by species typical of coniferous forests and to an increase in plants that are indicators for acidity and nitrogen. The statistical relationships between understorey vegetation structure and species richness, Ellenberg indicator values, and the proportion of Norway spruce in the tree layer were studied in 84 stands selected in a stratified random design in the Bavarian Alps, while controlling for the influence of the natural environment. The results show that the richness of coniferous forest species and the occurrence of acid indicators have been significantly favored by Norway spruce canopies, while understorey species characteristic of deciduous forests and nitrogen indicators have not been affected. While bryophytes and some shallow-rooted vascular plants respond positively to a coniferous canopy, most vascular plants are resilient to changes in the canopy. This can be attributed to the high buffering capacity of the soils under the mountain forests studied.
Gerhard Karrer,
Prof. Dr. Jörg Ewald
Euphorbia angulata Jacq. - eine übersehene Art in den Magerrasen des Ammer-Loisach-Hügellandes (2000) Berichte der Bayerischen Botanischen Gesellschaft 69/70 , S. 133-145.
Die Wolfsmilch-Art Euphorbia angulata Jacq. wird hiermit erstmals für Deutschland nachgewiesen. Nach einer detaillierten Beschreibung und Darstellung der für die Bestimmung wichtigen Merkmale wird das Gesamtareal und das lokale Areal der Sippe besprochen. 15 Belege von E. angulata in der Botanischen Staatssammlung (Herbar M) wurden früher als E. dulcis oder E. verrucosa verkannt. Anhand von 10 repräsentativen Vegetationsaufnahmen aus dem neuen Fundgebiet südwestlich von München wird das synökologische Verhalten in dieser Arealexklave eingehend analysiert. Der Schwerpunkt der aktuellen Vorkommen liegt in beginnenden Verbrachungsstadien von Magerwiesen und -weiden und ihren Säumen.
Prof. Dr. Jörg Ewald
Berechtigungen: Peer Reviewed
The influence of coniferous canopies on understorey vegetation and soils in mountain forests of the northern Calcareous Alps (2000) Applied Vegetation Science 3 (1), S. 123-134.
DOI: 10.2307/1478926
Compositional and edaphic gradients were studied in montane forests of the Bavarian Alps (Germany), in which natural mixed deciduous‐coniferous tree layers have been altered by past management in favour of Picea abies. Data on species composition and ecological factors were collected in a stratified random sample of 84 quadrats comprising a gradient from pure Picea to pure Fagus sylvatica stands. Data about the understorey composition were subjected to indirect (DCA) and direct gradient analysis (RDA) with the proportion of Picea in the canopy as a constraining variable. Three principal components of a matrix containing seven descriptors of mineral soil, relief and tree layer cover were included as covariables describing the variability of primary ecological factors. Gradients of organic topsoil morphology and chemistry were extracted correspondingly. Responses of individual species, species group and topsoil attributes were studied by simple and partial correlation analysis. Mosses were significantly more abundant and diverse under Picea stands. Few graminoid and herb species were partially associated with Picea, and total understorey richness and cover did not differ systematically by stand type. No relationship between tree layer and understorey diversity was detected at the studied scale. Juvenile Fagus sylvatica was the only woody species significantly less abundant under Picea. In the topsoil lower base saturation, lower pH and larger C/N‐ratios in the litter layer were partially attributable to the proportion of Picea, only for base saturation a relationship was detected in greater soil depth also. The frequency of broad humus form types did not differ by tree species, nor was overall depth of organic forest floor attributable to canopy composition.
Betreuung der Publikationsseiten
Gerhard Radlmayr
Referent für Wissenstransfer und Forschungskommunikation
Wir verwenden Cookies. Einige sind notwendig für die Funktion der Webseite, andere helfen uns, die Webseite zu verbessern. Um unseren eigenen Ansprüchen beim Datenschutz gerecht zu werden, erfassen wir lediglich anonymisierte Nutzerdaten mit „Matomo“. Um unser Internetangebot für Sie ansprechender zu gestalten, binden wir außerdem externe Inhalte unserer Social-Media-Kanäle ein.
