Wood consists of sapwood
and heartwood that will have different drying behaviors, and water in wood exists in two different environments (cell wall and cell lumen) with different physical behaviors.
Variation of sap flow velocity in Eucalyptus globulus with position in sapwood
and use of a correction coefficient.
The heartwood might present higher density, higher concentration of 'strange' materials such as oil, fat and phenolic compounds when compared to the sapwood
, which affect permeability and consequently the adhesive movement, and can also interfere in the chemical reactions of the adhesive curing process (Iwakiri, 2005).
Heartwood and sapwood
have different properties and their proportion within the tree will have a significant impact on the utilization of wood (Climent et al.
The house Longhorn Beetle is principally found in roof timbers, where it attacks the sapwood
of exclusively softwood species, often resulting in severe structural weakness.
There is little variation between its heart and sapwood
, so it has a pleasing, honeyuniform appearance.
mangiferae and sapwood
samples were collected from three severely infested orchards of Nawab pur, Lutfabad and Faiz pur bhatian, Multan, Pakistan.
Heartwood proportion and sapwood
width variation along the tree stem were also evaluated.
Lignum vitae was popular not just for its toughness but for decorative reasons too: if the sapwood
is also used, you get a strong, attractive contrast of colour between the light and dark wood.
The distribution of total soluble proteins was investigated in the sapwood
of 20-year-old Quercus robur L.
The sol-gel coating was spray-coated on pine sapwood
and cured with different temperature and time combinations.
Dehydration stress can lead to a loss in mechanical strength in re-wetted conifer sapwood
due to structural changes of the cell walls and micro cracks [1, 2].
Affected trees are characterized by a dark discoloration in the outer sapwood
(Fraedrich et al.
It appears that two inches of bark and sapwood
have been burned off, leaving a well-charred inner section.
Surrounding the heartwood is the sapwood
, made up of xylem cells.