Correlation between the share of latewood and the density of sawn timber from the Silesian Forestry Region

Abstract

Correlation between the share of latewood and the density of sawn timber from the Silesian Forestry Region. The paper describes the results of density measurements and the share of latewood in pine wood samples (Pinus sylvestris L.) from the Silesian Forestry Region in Poland. The samples were obtained from sawn timber from different kinds of log: butt, middle and top. The place from which the timber was obtained (three different log kinds) was taken into account when assessing the correlation between wood density and the share of latewood.

The Structural, Physical, and Mechanical Properties of Wood from Scots Pine (Pinus sylvestris L.) Affected by Scots Pine Blister Rust

“…The density of healthy wood was found to be similar to the values reported for samples taken at mid-stem height [12,13]. The values reported by other researchers [15,18,[24][25][26]31,32] are similar to ours or larger due to changes in density with tree height [13,15,18,[20][21][22]26,48]. The basic density of infected wood was much greater than that of healthy wood.…”

“…To be sure, this property is highly variable and may be affected, in addition to Scots pine blister rust, by sample location in the stem [22,23], tree age [23,28], and site conditions [23]. The density of healthy wood was found to be similar to the values reported for samples taken at mid-stem height [12,13]. The values reported by other researchers [15,18,[24][25][26]31,32] are similar to ours or larger due to changes in density with tree height [13,15,18,[20][21][22]26,48].…”

“…Previous research has shown that the mean latewood proportion in P. sylvestris ranges widely from 20% to almost 50% [12,15,18,24,31]. This substantial variability may be associated with many causes, with the major ones being the location in the stem [13,31], annual ring width [16], tree age [33], and type of forest site [18].…”

“…These criteria are met by the Scots pine, which is one the most important tree species in the world. It has been primarily studied in terms of its structure [12,13] and physical properties [14][15][16][17][18][19][20][21] (and especially density [13,[22][23][24][25][26][27][28]) as well as mechanical properties [29][30][31][32][33].…”

Physico-Mechanical and Energy Properties of Pine (Pinus sylvestris) and Beech (Fagus sylvatica) Wood from Railroad Ties

“…Materials that are valued in the wood industry and other sectors are those that are highly versatile, widely available, and of high technical quality. These prerequisites are met by beech and pine wood, which have been extensively tested for their structural characteristics [12,13], physical properties [1,2,[14][15][16][17][18][19] (and especially density [3,13,[20][21][22][23][24][25]), and mechanical parameters [4][5][6]26,27].…”