Wood

A knot on a tree trunk }} Wood is a structural tissue/material found as ''xylem'' in the stems and roots of trees and other woody plants. It is an organic materiala natural composite of cellulosic fibers that are strong in tension and embedded in a matrix of lignin that resists compression. Wood is sometimes defined as only the secondary xylem in the stems of trees, or more broadly to include the same type of tissue elsewhere, such as in the roots of trees or shrubs. In a living tree, it performs a mechanical-support function, enabling woody plants to grow large or to stand up by themselves. It also conveys water and nutrients among the leaves, other growing tissues, and the roots. Wood may also refer to other plant materials with comparable properties, and to material engineered from wood, woodchips, or fibers.

Wood has been used for thousands of years for fuel, as a construction material, for making tools and weapons, furniture and paper. More recently it emerged as a feedstock for the production of purified cellulose and its derivatives, such as cellophane and cellulose acetate.

As of 2020, the growing stock of forests worldwide was about 557 billion cubic meters. As an abundant, carbon-neutral renewable resource, woody materials have been of intense interest as a source of renewable energy. In 2008, approximately 3.97 billion cubic meters of wood were harvested. Dominant uses were for furniture and building construction.

Wood is scientifically studied and researched through the discipline of wood science, which was initiated since the beginning of the 20th century. Provided by Wikipedia
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    by WOOD
    Published 1967
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    by Wood
    Published 1995
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    by Wood
    Published 1973
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    by Wood
    Published 1984
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    Published 1989
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    Published 1976
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    by Wood
    Published 1982
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    by Wood
    Published 1979
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    by Wood
    Published 2017
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    by Wood
    Published 1993
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    by Wood
    Published 1989
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    by WOOD
    Published 1992
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    by WOOD
    Published 1994
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    by Wood
    Published 1987
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    by Wood
    Published 1959
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    by Wood
    Published 2000
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    by Wood
    Published 2005
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    by Wood
    Published 2005
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    by Wood
    Published 2013
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