Near infrared (NIR) spectroscopy provides a rapid, non-destructive method for the estimation of several wood properties of increment cores. MR spectra are collected from adjacent sections of the same core; however, not all spectra are required for calibration purposes as spectra from the same core are autocorrelated. Previously, we showed that wood property calibrations that included a single s...

Schima superba is a precious broadleaf tree species that produces excellent timber. Analyzing the radial variation of wood anatomical properties within stems and determining boundary between juvenile mature can provide theoretical basis for breeding cultivation S. superba. Herein, 30 54-year-old trees were used to analyze qualitatively. The correlation among was analyzed. On this basis, four ty...

to understand the compatibility of xylem with dry climates, wood anatomy similarities anddifferences of four shrubs were investigated in dry and cold region of sarab (azarbaijan sharghiprovince). these shrubs were: pteropyrum olivieri, rosa canina, tamarix gallica, and rhamnuspallasii, while the wood anatomy of pteropyrum sp. is reported for the first time, in this research.after preparing micr...

Abstract Key message Larger differences of maximum load among families were found in mature wood compared to juvenile wood, suggesting the possibility improving with higher resistance rupture and maintaining characteristics material Larix kaempferi (Lamb.) Carr. by selecting specific mating parents. Context Because from L. trees is used for construction lumber, properties bending should be focu...

The wood of a mature (40-year-old) Eucalyptus globulus Labill tree was characterized at different stem height levels (0%, 10%, 35%, and 50% of total height) regarding pulping, bleaching, and paper properties. Pulp yields increased upwards from 46% to 50%, and Kappa number decreased from 17.5 to 12.3 at 0 and 50% height, respectively. The estimated specific wood consumption ranged from 3.2 m odt...

An early focus on structural use of processed rather than round timber resulted in an underestimation of the structural advantages of retaining the natural form of small-diameter round timber. In the round and tapered form, timbers are not susceptible to the strength-reducing effects of diving grain and exposed juvenile wood. Fiber continuity around knots on the surface of a debarked log rarely...

The aim of this study was to characterize the properties of juvenile and mature heartwood of Robinia pseudoacacia L. (black locust). The content, the composition, and subcellular localization of heartwood extractives were studied in 14 old-grown trees from forest sites in Germany and Hungary, as well as in 16 younger trees of four clone types. Heartwood extractives (methanol and acetone extract...

Wood from tropical plantation forests has lower physical and mechanical properties than mature wood. Furfuryl alcohol (FA) impregnation into the wood could help to enhance hydrophobic properties, dimensional stability, structural strength. Furfurylation was applied specimens of following four fast-growing species: jabon (Anthocephalus cadamba), sengon (Falcataria moluccana), mangium (Acacia man...

Wood consumption is a rare behavior in frugivorous primates; however, it can be necessary for nutritional balancing as it may provide macro and/or micronutrients that are scarce in the most frequently eaten items (fruits). We tested this hypothesis in six spider monkey (Ateles geoffroyi) communities inhabiting continuous and fragmented rainforests in Lacandona, Mexico. We investigated the impor...