Naturalne suszenie surowca drzewnego w miejscu pozyskania

• Autorzy: Tomczak A. , Jelonek T. , Leszczynski N. , Korzeniewicz R.

Warianty tytułu

EN

Natural drying of wood in the cutting area

• Języki publikacji: PL

Abstrakty

EN

Wood obtained from freshly cut trees has a high moisture content and therefore its mass per volume unit is higher than the mass of dry wood. The natural drying is a simple and effective method of weight (moisture content) reduction, making a better use of the vehicle's payload, and thus reducing costs, including environmental costs. The conclusion is based on simulations and analyzes attempting to evaluate different solutions. As evidenced, the drying process of logs depends on numerous factors, which entails attempts at development of an optimal logging method, especially concerning energy wood, allowing for maximum value growth in as little time as possible. The suggestions cover various forms of logging (of whole trees, long timber), arranging (in piles, bundles), storing (in stands, by the roadside near cutting areas), and protection. Combined methods such as storing under canvas for winter only or storing in cutting areas and later in piles at the exit road also work in practice, but require more funds because their cost is determined by the number of stages composing the whole process. In case of wood, development of an optimal and simultaneously universal method used to prepare the lumber for transport and its delivery with consideration of as little environmental impact as possible is complicated. The numerous variables, some of which cannot be controlled or affected, create a considerable scientific problem as well. The authors covered in the presented literature review often stress the role of specific weather conditions accompanying an experiment or its location, the storage method, or lumber dimensions in the drying process. Storage time is perceived as equally important, but it is a derivative more or less determined by the previous variables. Previous studies of drying at the cutting area have been focused mainly on energy wood and less on industrial wood. They analysed the results of long−term storage and did not stress the potential advantages of short−term drying. Furthermore, we do not have sufficient information on species, including forest trees, which have a lower share in the volume of the logged wood. Advanced research can help establish the minimum mass (moisture content) with considerable impact on supply chain effectiveness improvement or evaluated various storing and drying methods. We reviewed reports explaining the impact of various factors on natural drying of wood, models and storage effects, and analyzing potential economic and environmental benefits.

Słowa kluczowe

PL

lesnictwo; uzytkowanie lasu; surowce drzewne; drewno swiezo sciete; masa drewna; wilgotnosc drewna; suszenie naturalne; magazynowanie

• Wydawca: -
• Czasopismo: Sylwan
• Rocznik: 2017
• Tom: 161
• Numer: 11
• Opis fizyczny: s.898-908,bibliogr.

Twórcy

autor

Tomczak A.

• Katedra Użytkowania Lasu, Uniwersytet Przyrodniczy w Poznaniu, ul.Wojska Polskiego 71A, 60-625 Poznań

autor

Jelonek T.

• Katedra Użytkowania Lasu, Uniwersytet Przyrodniczy w Poznaniu, ul.Wojska Polskiego 71A, 60-625 Poznań

autor

Leszczynski N.

• Katedra Maszyn Ogrodniczych i Leśnych, Uniwersytet Przyrodniczy w Lublinie, ul.Głęboka 28, 20-612 Lublin

autor

Korzeniewicz R.

• Katedra Hodowli Lasu, Uniwersytet Przyrodniczy w Poznaniu, ul.Wojska Polskiego 71A, 60-625 Poznań

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