Soil properties in plantations of sessile oak (Quercus petraea) and red oak (Quercus rubra) in reclaimed lignite open-cast mines of the Rhineland

Geoderma ◽  
2005 ◽  
Vol 129 (1-2) ◽  
pp. 65-72 ◽  
Author(s):  
Frank Nicolini ◽  
Werner Topp
Keyword(s):  
Soil Properties ◽  
Quercus Rubra ◽  
Quercus Petraea ◽  
Red Oak ◽  
Sessile Oak ◽  
Open Cast

scholarly journals Candida floccosa sp. nov., a novel methanol-assimilating yeast species

2006 ◽  
Vol 56 (8) ◽  
pp. 2015-2018 ◽  
Author(s):  
Gábor Péter ◽  
Dénes Dlauchy ◽  
Judit Tornai-Lehoczki
Keyword(s):  
Type Strain ◽  
Quercus Rubra ◽  
Yeast Species ◽  
Large Subunit ◽  
Red Oak ◽  
Sessile Oak ◽  
Yeast Strains ◽  
D2 Domain ◽  
Large Subunit Rdna ◽  
Ascospore Formation

Two methanol-assimilating yeast strains were isolated from a flux of a sessile oak (Quercus petrea) in Hungary and one genetically and phenotypically very similar strain from a flux of a red oak (Quercus rubra) in Canada. The strains exhibited ascomycetous affinity but ascospore formation was not observed. On the basis of the sequence of their D1/D2 domain of the large subunit rDNA, as well as of their physiological characteristics, they represent a novel yeast species of the genus Candida. Therefore Candida floccosa sp. nov. is proposed, with NCAIM Y.01581T (=CBS 10307T=NRRL Y-27951T) as the type strain.

scholarly journals Comparison of the herb layer composition in stands of several tree species in the Louny region

Beskydy ◽  
2016 ◽  
Vol 9 (1-2) ◽  
pp. 41-48
Author(s):  
Jiří Viewegh ◽  
Stanislav Miltner ◽  
Karel Matějka ◽  
Vilém Podrázský
Keyword(s):  
Pinus Sylvestris ◽  
Tree Species ◽  
Natural Regeneration ◽  
Quercus Rubra ◽  
Quercus Petraea ◽  
Ground Vegetation ◽  
Red Oak ◽  
Northern Red Oak ◽  
Herb Layer ◽  
Layer Composition

Influence of introduced northern red oak stands (Quercus rubra L.) on herb understory with comparison with herb understory of autochthonous Sessile oak (Quercus petraea agg. L) and Scots pine (Pinus sylvestris L.) was observed in Louny region area on 14 plots. The analysis of the ground vegetation was performed using classical phytosociological methods. Significant changes were not determined in the site character, when comparing particular tree species stands, the differences consisted especially in the natural regeneration of tree species. Northern red oak showed a tendency of more fast penetration in the neighboring stands.

scholarly journals Quantitative and qualitative evaluation of Northern red oak (Quercus rubra L.) in arid areas of North-Western Bohemia

2018 ◽  
Vol 64 (No. 2) ◽  
pp. 53-58
Author(s):  
Kupka Ivo ◽  
Baláš Martin ◽  
Miltner Stanislav
Keyword(s):  
Quercus Rubra ◽  
Qualitative Evaluation ◽  
Red Oak ◽  
Northern Red Oak ◽  
Wood Production ◽  
Additional Species ◽  
Sessile Oak ◽  
Quality Health ◽  
North Western

The article analyses growth and quality of Northern red oak (Quercus rubra Linnaeus) based on 13 research plots (seven in red oak stands and six in sessile oak stands) with the ages between 17 to 159 years. The collected data includes height, DBH, crown diameter, stem and crown quality, health status of each tree on the plot. Analogous plots were chosen in sessile oak (Quercus sessilis Linnaeus) stands on similar sites to get reference data. The results proved the high wood production potential of red oak when compared to sessile oak being at the same or higher quality and health. The data propose the red oak to be a good additional species in lowland stands.

scholarly journals Effects of Northern red oak (Quercus rubra L.) and sessile oak (Quercus petraea (Mattusch.) Liebl.) on the forest soil chemical properties

2016 ◽  
Vol 62 (3) ◽  
pp. 169-172 ◽  
Author(s):  
Stanislav Miltner ◽  
Ivo Kupka ◽  
Michal Třeštík
Keyword(s):  
Forest Soil ◽  
Quercus Rubra ◽  
Base Saturation ◽  
Total Carbon ◽  
Red Oak ◽  
Northern Red Oak ◽  
Soil Layers ◽  
Sessile Oak ◽  
Exchangeable Acidity ◽  
Exchangeable Al

AbstractNorthern red oak (Quercus rubraL.) is one of the most important introduced tree species in the Czech Republic, occupying about 6,000 ha with ca. 900,000 m3of the standing volume. The presented study aims to evaluate its soil forming effects on natural oak sites. Soil chemistry of the upper soil layers (F+H, Ah, B horizons) was studied in three pairs of stands of both species. In each stand, four bulk samples were taken separately for particular horizons, each consisting of 5 soil-borer cores. The soil characteristics analysed were: pH (active and potential), soil adsorption complex characteristics (content of bases, exchangeable cation capacity, base saturation), exchangeable acidity (exchangeable Al and H), total carbon and nitrogen content, and plant available nutrients content (P, K, Ca, Mg). Total macronutrient content (P, K, Ca, Mg) was analysed only in holorganic horizons. Results confirmed acidification effects of red oak on the upper forest soil layers such as decreased pH, base content, base saturation, all nutrient contents in total as well as plant-available form and increased soil exchangeable acidity (exchangeable Al) in comparison to the sessile oak stands, especially in holorganic horizons and in the uppermost mineral layer (Ahhorizon). Northern red oak can be considered as a slightly site-soil degrading species in the studied sites and environmental conditions in comparison to native oak species.

Influence de la densité du couvert forestier sur le développement architectural de jeunes chênes sessiles, Quercus petraea (Matt.) Liebl. (Fagaceae), en régénération forestière

2000 ◽  
Vol 78 (12) ◽  
pp. 1531-1544 ◽  
Author(s):  
Eric Nicolini ◽  
Daniel Barthélémy ◽  
Patrick Heuret
Keyword(s):  
Quercus Petraea ◽  
Growth Unit ◽  
Growth Morphology ◽  
Basal Diameter ◽  
Canopy Density ◽  
Sessile Oak ◽  
The North ◽  
Oak Trees ◽  
Branching Patterns ◽  
Number Of Branches

The growth and branching patterns of the main axis of 6-year-old sessile oak, growing in a natural regeneration in the north of France, were analysed each year retrospectively according to three increasing canopy density conditions: large gap, small gap, and dense canopy. Increasing gap size is associated with an increase in the total height, basal diameter, branching probability, and global polycyclism rate of the trees. At the growth unit or annual shoot level, from dense canopy to large gaps these botanical entities also show an increase in their total length, number of nodes, polycyclism, and branching rate as well as mean number of branches and mean internode length. A discussion of our results revealed some endogenous features of growth and branching patterns in young sessile oak trees. It is also shown that increasing canopy density generally tends to reduce the expression of the endogenous architectural sequence of differentiation of young sessile oak trees. Young trees growing below dense canopy thus seem to be "delayed" in their sequence of differentiation and appear to be in a "waiting" status, whereas young trees growing in large gaps exhibit an architecture very similar to trees growing in nurseries under nonlimiting growth conditions.Key words: architecture, Quercus petraea, growth, morphology, canopy density.

scholarly journals Oak (Acorn)–Weevil Interactions across an Extensive Latitudinal Gradient in Eastern North America

Diversity ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 303
Author(s):  
Michael A. Steele ◽  
Harmony J. Dalgleish ◽  
Shealyn Marino ◽  
Andrew W. Bartlow ◽  
Rachel Curtis ◽  
...  
Keyword(s):  
Latitudinal Gradient ◽  
Quercus Rubra ◽  
Geographic Area ◽  
Eastern North America ◽  
Red Oak ◽  
Quercus Alba ◽  
White Oak ◽  
Opposite Pattern ◽  
Chemical Gradients ◽  
Latitudinal Transect

Recent studies have explored how nut weevils (Curculio and Conotrachelus spp. (Coleoptera: Curculionidae) prey on the fruits (acorns) of oak (Quercus spp.). However, few, if any, have examined these interactions over both an extensive geographic area and over several years. Here, we observed patterns of infestation in acorns of both red oak (Quercus rubra) and white oak (Quercus alba) over an eight-year period along a latitudinal transect, extending as far as 900km, across much of the shared range of these two oak species. Although weevil prevalence did not differ significantly between the two oak species, in red oak, infestation prevalence increased significantly with latitude. In contrast, an opposite pattern was evident in white oak, with the highest infestation prevalence occurring at lower latitudes. One controlled measure of cotyledon damage was significantly lower in acorns of red oak than those of white oak, which may in part be due to larger acorn size at the lower latitudes. Future investigations in this system should focus on the distribution of weevil species (with DNA barcoding) across this range and geographic variation in chemical gradients that likely determine patterns of weevil damage in individual acorns.

Sign in / Sign up

Export Citation Format

Share Document