Influence of morphometric parameters of relief on macro- and microstructure of wood Pinus silvestris L. in the North of the Russian plain

Abstract

Pine grows in a variety of environmental conditions which form several of technical properties of wood. The purpose of this study is an analysis of the morphology and the structure (i.e., the annual ring width, the latewood content, the tracheid wall thickness of the early- and latewood) of pine wood growing in areas with different relief and soil condition. The annual ring width and the latewood content don't have a pronounced dependence on the relief. The tracheid wall thickness of early wood has a high degree of correlation with aspect, photosynthetically active radiation (PAR) and diurnal anisotropic heating - DAH (r = -0.81 to -0.88). The tracheid wall thickness latewood is highly correlated with topographic wetness index and profile curvature (r = 0.88). The relief parameters PAR and DAH, which characterize the distribution of insolation, have a high degree of correlation with the tracheid wall thickness of early wood. In the conditions of the middle taiga subzone the flat relief influences the microstructure of pine wood due to redistribution of heat and moisture.

Keywords

• pine
• relief
• morphology and structure of wood
• arkhangelsk region