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Impact of silviculture on species diversity in forests in Germany

Description: Das Projekt "Impact of silviculture on species diversity in forests in Germany" wird vom Umweltbundesamt gefördert und von Universität Hamburg, Arbeitsbereich für Weltforstwirtschaft und Institut für Weltforstwirtschaft des Friedrich-Löffler-Institut, Bundesforschungsinstitut für Tiergesundheit durchgeführt. Objectives: Focus of investigations is in development of species and ecosystem diversity (alpha-, beta- and gamma-diversity) as well as on ecological and population biological processes on landscape and ecosystem levels. The project asks questions on the function of forest management and landscape units for dispersal and establishment of typical forest plants (herb, shrub and tree layer), in particular on the exchange of diaspores (dispersal units) and the recolonization of biocoenologically impoverished, partly fragmented forest ecosystems. We will also check to what extent species or species groups and habitat structures can be used as indicators for monitoring of biological diversity in forests on landscape level. Major questions are: (1) How to maintain or re-create a biological diversity that is typical and as large as possible for the respective forest ecosystem? (2) What spacious effects does forest management have for the biological diversity at landscape level? (3) Which role do wild animals (e.g. hoofed game, birds) play in the diaspore dispersal of vascular forest plants? (4) How can the biological diversity be monitored with simple methods? Results: - The comparison of the recent and the ancient forest cover shows in total an increasing forest area of 636 ha. On the soils of the ground and terminal moraines deforestation exceeds by far the reforestation (balance -544ha). On the sander the afforestation of former heathland, communal pasture and fields increases the forest area round about 1.198 ha. - The rare vascular plant species, selected on the basis of their frequency in the distribution atlas of the flora of Schleswig-Holstein, are mainly found on the nutrient rich and moist sites of the recent moraine, especially in the Alno-Ulmion and the Hordelymo-Fagetum. - A comparison of the presence of the rare vascular plant species with informations in the distribution atlas leads to the presumption of a decrease of the occurence of a lot of these species. The reasons for this are discussed. - The strict relationship of the rare forest vascular plant species to sites with continously forest cover is remarkable. Only 12 of the 72 sites with at least one rare plant species are clearly afforestated agricultaral area. - Hoofed game species transport numerous plant species - partially in large amounts - over relatively long distances, both by the faeces after gut passage (endozoochory) and by adhesion to the coats and hooves (epizoochory). Especially wild boar are of particular importance, as they may potentially disperse almost plant species.

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SupportProgram

Origin: /Bund/UBA/UFORDAT

Tags: Holstein ? Schleswig ? Entwaldung ? Landschaftspflege ? Wildschwein ? Strauchschicht ? Schleswig-Holstein ? Federwild ? Schalenwild ? Vogel ? Hamburg ? Biopharmazeutikum ? Baum ? Fäkalien ? Nährstoff ? Skigebiet ? Blei ? Brunnen ? Seltene Pflanzenart ? Bundesrepublik Deutschland ? Main ? Waldmonitoring ? Wiederansiedlung ? Waldökosystem ? Wiederaufforstung ? Gebäude ? Pflanzenart ? Habitat ? Demografischer Wandel ? Waldfläche ? Gehölzpflanze ? Forstpflanze ? Wildtier ? Monitoring ? Güterverkehr ? Heidelandschaft ? Landschaftsstruktur ? Standortwahl ? Boden ? Biologische Aktivität ? Weideland ? Verbreitungsgebiet ? Ackerland ? Wirkung ? Tiergesundheit ? Artenvielfalt ? Aufforstung ? Beweidung ? Bilanz ? Waldbiodiversität ? Flora ? Forstwirtschaft ? Ökosystem ? Population ? Weiträumiger Transport ? Wald ? Landschaft ? Verkehr ? Abdeckung ? Waldfunktion ? Vergleich ? Biodiversität ? Adhäsion ? Diversität ? Indikator ? gebraucht ? Ergebnis ? Projekt ? Waldpflanze ? alt ? Gruppe ? austauschen ? ehemalig ? Ableitung ? Abnahme ? neu ? Schicht ? Art [Spezies] ? Bepflanzung ? Frage ? Untersuchung ? Kräuter ? Betrag ? Dispergierung ? Verfrachtung ? Vermehrung ? rund ?

Region: Hamburg

Bounding box: 9.99302° .. 9.99302° x 53.55073° .. 53.55073°

License: cc-by-nc-nd/4.0

Language: Deutsch

Organisations

Time ranges: 1999-12-01 - 2003-12-31

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