Influence du type de station forestière sur les composantes intracernes de la densité du bois du chêne pédonculé (Quercus robur L) dans les chênaies de l'Adour et des coteaux basco-béarnais

Ackermann, F

doi:10.1051/forest:19950609

Cited by 17 publications

(25 citation statements)

References 7 publications

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“…Y is a density [7] and Ackerman [1] found a significant correlation between earlywood width and ring width (R 2 = 0.65 and R 2 = 0.57, respectively) which corroborates our results. [20] observed earlier that trees do not exhibit similar density with ring width and stated that it was always possible to find oaks with large rings and rather low wood specific gravity.…”

Section: Measurement Methodssupporting

confidence: 82%

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Modelling variability of within-ring density components in Quercus petraea Liebl. with mixed-effect models and simulating the influence of contrasting silvicultures on wood density

Guilley

Hervé²,

Huber

et al. 1999

Ann. For. Sci.

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Section: Measurement Methodssupporting

confidence: 82%

“…This work was then devoted to the model of variation of within-ring density components in commercial logs in connection with tree growth defined by age from the pith and ring width. First, models of within-tree variation are proposed for [23,24], Ackermann [1], Degron and Nepveu [4]. This …”

mentioning

confidence: 99%

Modelling variability of within-ring density components in Quercus petraea Liebl. with mixed-effect models and simulating the influence of contrasting silvicultures on wood density

Guilley

Hervé²,

Huber

et al. 1999

Ann. For. Sci.

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“…[9,12,13,19,[27][28][29]. For example, in Q. petraea the water and nutrients soil availability and climate seem to have more effect in radial growth than in wood density [29,30].…”

Section: Discussionmentioning

confidence: 99%

Variation of Ring Width and Wood Density in Two Unmanaged Stands of the Mediterranean Oak Quercus faginea

Sousa

Lousada

Pereira

2018

Forests

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Ring width and wood density variation were studied from pith-to-bark and along the stem in two naturally regenerated stands of Quercus faginea Lam. in Portugal. Ring width was significantly different between sites, in both heartwood and sapwood rings, ranging from 1.83 mm to 2.52 mm and from 0.77 mm to 2.11 mm, respectively. Wood density was significantly different between sites only in the heartwood, i.e., 914 kg m −3 and 1037 kg m −3 . Site effects were the main source of variation for ring width and wood density within the heartwood as well as for sapwood ring width, while the between-tree effects explained more the density variation within the sapwood. Wood density showed within-tree uniformity that was not affected by site. The stand characteristics such as basal area and tree age may override the environmental growth conditions. There was also a weak correlation between wood density and ring width components therefore suggesting the possibility of forestry management for both fast tree growth and high wood density.

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“…As large "grained" wood (i.e. wide annual rings) of both sessile and pedunculate oaks is known to have a higher proportion of latewood [1,7,10,15,17,19,20,25] it can be inferred that the ellagitannin content in latewood tissues is higher than in earlywood (at least for pedunculate oak). This inference corresponds to the results described by Masson et al [27] who observed a higher ellagitannin content in latewood tissues (in that case, for both sessile and pedunculate oaks).…”

Section: Correlation Between Studied Parametersmentioning

confidence: 99%

Effect of species and ecological conditions on ellagitannin content in oak wood from an even-aged and mixed stand ofQuercus roburL. andQuercus petraeaLiebl.

et al. 2006

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-Species effects and ecological conditions on ten heartwood ellagitannins (vescalin, castalin, roburins A-E, grandinin, vescalagin and castalagin) and ellagic acid were investigated in a 100 years old stand of 5 ha located in western France (La Petite Charnie State Forest, Sarthe). The sample included a total of 286 trees (118 sessile oaks, 158 pedunculate oaks and 10 individuals with an intermediate morphology) located in three ecological zones (plateau, slope, small valley). The main factor influencing oak extractives level was botanical species. The ecological zone effect appears negligible. Pedunculate oak is generally richer in ellagitannins (48.4 mg/g against 34.4 for sessile oak), although a clear boundary between the two species cannot be established. Ellagitannin content was found to be correlated with ring width for pedunculate oak and not for sessile oak. The vescalagin/castalagin ratios differed between the two species (0.69 for Quercus robur against 0.53 for Quercus petraea). The distribution of ellagitannin contents is not strongly structured spatially.ellagitannin / oak wood / Quercus robur L. / Quercus petraea Liebl. / variability / ecological conditions Résumé -Effet de l'espèce et des conditions écologiques sur le contenu du bois en ellagitanins dans un peuplement équien de chêne (Quercus robur L., Quercus petraea Liebl.). Les effets de l'espèce et des conditions écologiques sur le contenu du duramen externe de dix ellagitanins (vescaline, castaline, roburines A à E, grandinine, vescalagine, castalagine) et de l'acide ellagique ont été étudiés dans un peuplement équien (100 ans) de chêne d'une surface de 5 ha située dans l'ouest de la France (forêt domaniale de La Petite Charnie, Sarthe). L'échantillon total se composait de 286 arbres (118 chênes sessiles, 158 chênes pédonculés et 10 chênes intermédiaires) répartis en mélange dans trois zones écologiques du peuplement (plateau, pente et fond de vallon). Le facteur principal qui influence la teneur en ellagitanin est l'espèce botanique, alors que le facteur « zone » est négligeable dans les conditions expérimentales considérées. Le bois de chêne pédonculé est plus riche en ellagitanins que celui du chêne sessile (48,4 mg/g pour le chêne pédonculé ; 34,4 mg/g pour le chêne sessile), mais une distinction claire entre les deux espèces ne peut être établie. Une corrélation entre la teneur en ellagitanin et la largeur de cerne est observée pour le chêne pédonculé à la différence du cas du chêne sessile. Le rapport vescalagine/castalagine est plus élevé pour le chêne pédonculé que pour le chêne sessile (0,69 et 0,53). La structuration spatiale est faible. ellagitanin / bois de chêne / Quercus robur L. / Quercus petraea Liebl. / variabilité intrapeuplement / conditions écologiques

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Influence du type de station forestière sur les composantes intracernes de la densité du bois du chêne pédonculé (Quercus robur L) dans les chênaies de l'Adour et des coteaux basco-béarnais

Cited by 17 publications

References 7 publications

Modelling variability of within-ring density components in Quercus petraea Liebl. with mixed-effect models and simulating the influence of contrasting silvicultures on wood density

Modelling variability of within-ring density components in Quercus petraea Liebl. with mixed-effect models and simulating the influence of contrasting silvicultures on wood density

Variation of Ring Width and Wood Density in Two Unmanaged Stands of the Mediterranean Oak Quercus faginea

Effect of species and ecological conditions on ellagitannin content in oak wood from an even-aged and mixed stand ofQuercus roburL. andQuercus petraeaLiebl.

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