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Books > Professional & Technical > Agriculture & farming > Agricultural science
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Compression Wood in Gymnosperms (Hardcover, 1986 ed.)
Loot Price: R14,802
Discovery Miles 148 020
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Compression Wood in Gymnosperms (Hardcover, 1986 ed.)
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Felix qui potuit rerum cognoscere causas. Pub/ius Vergilius Mara
Forests have long been one of mankind's most important natural re
sources and not the least because forests are, if properly managed,
re newable. They serve us in many different ways, but above all in
pro viding us with wood, one of the most remarkable and useful of
all natural materials. Reaction wood, compression wood in
gymnosperms and tension wood in the arboreal angiosperms, serves
the function of making it possible for trees to perform movements.
In the ancient Ginkgo and in the conifers, the ability to form
compression wood is of vital importance to each and every tree.
Compression wood plays a crucial role in the regulation of tree
form in these gymnosperms, and their arborescent habit probably
depends on their ability to develop this tissue. Few forest and
plantation trees are devoid of compression wood in their stem, and
all of them have it in their branches. Unfortu nately, what is
necessary and beneficial for the tree in this case is harmful to
mankind, for compression wood is a very serious defect in both
sawtimber and pulpwood. It is now almost 20 years since the last
complete survey of compres sion wood was published, namely Arthur
H. Westing's excellent review of this subject. My major objective
in writing the present book has been to bring together in one
single work everything that is currently known about compression
wood."
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