The sugars profile in Scots pine wood from different origins was examined by high-performance liquid chromatography (HPLC) technique. The aim that can be achieved in the later research period is …
Wood is a renewable raw material which, managed rationally and in accordance with the principles of sustainable development, can be harvested without excessive exploitation of forest resources [Gustavsson et al., …
Prior to the era of impregnated timber, the heartwood of two boreal conifers, Scots pine (Pinus sylvestris L.) and Siberian larch (Larix sibirica Ledeb.), was used in construc-tions prone to …
By means of a capacitance moisture meter, moisture fluctuations were studied on boards of Norway spruce (Picea abies), mounted as external cladding on a purpose-built experimental wall. Two causes of …
The natural durability of wooden structures subjected to decay has become more important along with increasing concern about the ecological impacts of wood preservation chemicals. The fact that wood is …
Extractives of bark, heartwood, knots and wounded xylem provide defense for living trees. In Scots pine (Pinus sylvestris L.) heartwood the most important groups of defensive extractives are stilbenes, which …
Scots pine (Pinus sylvestris) and especially its heartwood is one of the most common construction materials for general outer use e.g. windows or facades in northern Europe. It is considered …
Coated specimens of fast-grown and slow-grown Norway spruce (Picea abies (L.) Karst) and of Scots pine heartwood (Pinus Sylvestris L.) were subjected to liquid water exposure based on the European …
Two types of wood are distinguished in pine and spruce – sapwood and heartwood. According to one of the most common theories, the heartwood formation process can be explained by …
The poster presents the main ideas and some results of the five year project funded by Finnish Forest Cluster strategic centre (Finnish Bioeconomy Cluster, FIBIC, from 2012). Our study concentrated …
The ratio of heartwood and sapwood influences the mass of the tree trunk and logs, since sapwood moisture content and density in the freshly felled timber differ considerably from that …
The natural durability of timber is an important property in order to assess the performance in service. For numerous species grown in primary forests, this property was already determined. As …
Fast and accurate methods are needed to measure durability related chemical characteristics from solid wood. In the field of forest tree breeding the measurements would be performed from increment core …
A candidate method based on UV-fluorescence of stilbenes is under development for fast measurement of stilbene concentration on solid heartwood of Scots pine (Pinus sylvestris L.). Development is focused on …
Wood material has advantages, it comes from a renewable source and it is easy to manage. But one disadvantage when used outdoors is biological discoloration of the material. Some impact …
