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Showing 1 to 20 of 20 for “"quercus robur"”.
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Studien zur Pathogenität von Armillaria spp. an Bäumen nach temporärer Überflutung
… wurden flutungstolerante Stieleichen (Quercus robur) und flutungssensitive Buchen (Fagus sylvatica) mit A. mellea bzw. A. gallica inokuliert und mit unterschiedlichen Flutungsperioden konfrontiert. Mittels makroskopischer und lichtmikroskopischer Analysen konnten dann die …
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Studies on the conservation of waterlogged wood in New Zealand
… Results were compared to those from sound oak (Quercus robur), a wood which has been studied intensively by conservators in Europe. Detailed summaries of the conservation properties of 26 wood types are given. This reveals that while some New Zealand woods are easy to conserve others provide …
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Optimising oak woodland establishment into UK upland pastures in the context of climate change; and the role of oak woodland in soil hydrological recovery for natural flood management
… and the impact of upland ‘Atlantic’ oak (Quercus robur, Quercus petraea) woodland establishment on the recovery of soils for natural flood management (NFM). The soil moisture, livestock grazing and dispersal constraints for potential oak woodland expansion in upland pastures are assessed. …
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Evolución de los bosques en la costa Atlántica ibérica durante el Cuaternario. Implicaciones paleoclimáticas
… anatómico de numerosos restos foliares de Quercus robur en la costa septentrional de la Península Ibérica, ofreció la posibilidad de conocer la evolución del CO2 atmosférico a lo largo de los últimos 10000 años. Para ello se desarrolló un modelo, a partir de pliegos de herbario recolectados …
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Aspects of plant dispersal in the southwestern Cape with particular reference to the roles of birds as dispersal agents
… by obligate frugivores. The abiotic dispersal of Quercus robur was found to be efficient in relation to vertebrate-dispersal. The study on Protasparagus aethiopicus found that the morphology of fleshy fruits may also reflect attempts to overcome the effects of non-dispersing seed predators. 1It is …
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Holocene climate change and peatland dynamics in southern Sweden based on tree-ring analysis of subfossil wood from peat deposits
… years in length, were developed from pine, oak (Quercus robur L.) and alder (Alnus glutinosa L.). Most of these RW chronologies were dated by radiocarbon (14C). An approach combining bog-tree RW, replication and mean-age data, with peat stratigraphic records was explored to provide information …
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Experimentelle Untersuchung der Wasseraufnahme und der hydraulischen Eigenschaften des Wurzelsystems von sechs heimischen Baumarten
… Hainbuche (Carpinus betulus), Stieleiche (Quercus robur) und Buche (Fagus sylvatica) untersucht. An jeweils 20 Wurzeln (Durchmesser 3-4 mm) pro Baumart wurden Sensoren installiert, mit denen nach der Miniatur-Saftflussmessmethode die Wasseraufnahmerate aufgezeichnet wurde. Nach Abschluss …
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Consolidación de estructuras de madera mediante refuerzos embebidos en formulaciones epoxi
… especies distintas: Pino insigne, Pino laricio y Quercus robur; tres formulaciones epoxi de diferentes características; y el refuerzo utilizado está constituido por materiales compuestos (resina de poliéster y fibra de vidrio). A continuación se estudian las propiedades mecánicas de los materiales …
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Auswirkungen von Trockenheit und Entlaubung auf den Wasserhaushalt von Stiel- und Traubeneiche
… Bedingungen an zu Versuchsbeginn dreijährigen Quercus robur und Q. petraea getestet. Zur Simulation von Insektenfraß wurden die Bäume in zwei aufeinander folgenden Jahren jeweils im Frühjahr manuell entlaubt. Im ersten Teilversuch wurde Trockenstress im Jahr der letztmaligen Entlaubung, im …
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Acidification and eutrophication of forests on sandy soil: effects of forest type and deposition load
… mixed species forests with Betula pendula and Quercus robur certainly diminishes the input of potentially acidifying and N deposition and consequently soil acidification and nitrate seepage to groundwater. But it should be emphasized that also in some of the observed deciduous forest types …
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Tree-ring analyses of European oak: implementation and relevance in (pre-)historical research in Flanders.
… by processing wood. Especially European oak (Quercus robur L. and Q. petraea (Matt.) Liebl.) was highly esteemed by craftsmen. Tree-ring series of oak have the characteristic that they tend to crossdate. In other words, ring-width series display a certain element of synchronicity between …
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Tree-ring analyses of European oak: implementation and relevance in (pre-)historical research in Flanders
… by processing wood. Especially European oak (Quercus robur L. and Q. petraea (Matt.) Liebl.) was highly esteemed by craftsmen. Tree-ring series of oak have the characteristic that they tend to crossdate. In other words, ring-width series display a certain element of synchronicity between …
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Nutrient fluxes and soil microbial processes
… beech (Fagus sylvatica L.), pedunculate oak (Quercus robur L.), silver birch (Betula pendula ROTH.), goat willow (Salix caprea L.) and rowan (Sorbus aucuparia L.) were located in 4 fenced plots within a 81 ha catchment. Soil chemical properties (soil organic matter, pH, cation exchange …
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Diagnóstico de los hayedos burgaleses e identificación de tipologías estructurales para la asignación de tratamientos selvícolas
… (Pinus sylvestris L.,Abies alba Mill., Quercus robur L., Quercus petraea (Matts.) Liebl., etc.). Esto ha repercutido en una ausencia casi total de bibliografía y documentación sobre el haya en nuestras latitudes, llegándose incluso a aplicarle la selvicultura y los tratamientos de otras …
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The functional role of understorey herbs for litter decomposition in temperate forests
… each of five tree species (Fagus sylvatica L., Quercus robur L., Acer pseudoplatanus L., Fraxinus excelsior L., and Tilia platyphyllos Scop.). These tree species represent a gradient in litter quality. Two herbaceous litter addition experiments were performed, one under laboratory conditions and …
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The hydrological effects of changes in forest area and species composition in the federal state of Brandenburg, Germany
… (Pinus sylvestris) and in parts for Common Oak (Quercus robur and Q. petraea) in Brandenburg. For Scots Pine the results demonstrate a good simulation of annual biomass increase and LAI in addition to the satisfactory simulation of litter production. A comparison of the simulated and measured …
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Qualitätsentwicklung junger Eichen in Bestandeslücken
… unter Schirm aufwachsenden Eichen (Q.petraea, Q.robur) ist über die durch Lichtmangel bedingte Modifikation der Baumgestalt wenig bekannt. Ziel der Untersuchung war es, die mit der Baumgestalt verbundene 'Qualitätsentwicklung' junger Eichen, die in Lücken aufwachsen, im Vergleich zur Entwicklung …
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Uso sostenibile dei suoli forestali di ambiente costiero in relazione ai fattori di pressione esistenti
… profilo del suolo. Per altre specie quali Quercus robur, Populus alba, Fraxinus oxycarpa e Ulmus minor moderatamente sensibili alla salinità, ma abituate a vivere in suoli più umidi, la salinità di una falda troppo prossima alla superficie può ripercuotersi su tutto il profilo e generare …