Determination of standards of raw timber natural losses due to shrinkage at long-term dry storage

The aim of the article is to describe the issue of determining the characteristics and parameters of raw timber natural losses due to shrinkage at long-term storage, defining the theoretical basis for creating standards, and verify its finding by means of a case study in raw timber storing. This issue is very topical in forestry practice in the Czech Republic as well as in other countries. The lower and upper limits of the standards were calculated, and the proposed mean value was grouped according to woody plants that reflected the most frequent commercial usage with respect to subsequent processing. Subsequently, experimental verification was carried out on a representative sample of 2 209.99 m3 of raw timber of Norway spruce (Picea abies /L./ H. Karst.) at selected forest administrations. Furthermore, the article addresses the related accounting and tax issues of the standards of natural losses of raw timber. Currently, no legislation mandates an entity to establish standards.

[1]  H. Lenz,et al.  Options for Optimizing the Drying Process and Reducing Dry Matter Losses in Whole-Tree Storage of Poplar from Short-Rotation Coppices in Germany , 2020, Forests.

[2]  Forest product conversion factors , 2020 .

[3]  P. Perré,et al.  Characterisation of wood–water relationships and transverse anatomy and their relationship to drying degrade , 2016, Wood Science and Technology.

[4]  W. Willems.  Equilibrium thermodynamics of wood moisture revisited: presentation of a simplified theory , 2016 .

[5]  Ziedonis Miklašēvičs,et al.  Harmonization of Piece-by-Piece Measurement Methods of Roundwood Approved by Latvian Standard LVS 82:2003 “ Apaļo kokmateriālu uzmērīšana ” , 2015 .

[6]  Maryanne M. Mowen,et al.  Managerial accounting : the cornerstone of business decisions , 2012 .

[7]  Callum A. S. Hill,et al.  A critical discussion of the physics of wood–water interactions , 2012, Wood Science and Technology.

[8]  V. Goglia,et al.  Differences in the manual and electronic measurement of the volume of roundwood. , 2007 .

[9]  Karel Janák,et al.  Differences in round wood measurements using electronic 2 D and 3 D systems and standard manual method , 2007 .

[10]  J. Herbohn,et al.  International accounting standard (IAS) 41: What are the implications for reporting forest assets? , 2006, Small-scale Forest Economics, Management and Policy.

[11]  Matthew A. Fonseca,et al.  The Measurement of Roundwood: Methodologies and Conversion Ratios , 2005 .

[12]  R. Baronasa,et al.  Modelling of Moisture Movement in Wood during Outdoor Storage , 2002 .

[13]  C. Skaar.  Wood-Water Relations , 1988, Springer Series in Wood Science.

[14]  W. Cǒté,et al.  Principles of Wood Science and Technology: I Solid Wood , 1977 .