The Forest Farmer Manual
نویسنده
چکیده
Third, the wood itself has an unusual combination of desirable properties. Its strength is outstanding. It is a prime material for structural plywood. Its light color and the strength of its fibers adapt it for pulping by both chemical and mechanical processes. The self-pruning attribute of the major species permits clear lumber for millwork to be produced in quantity. Further, the form of the trees favors their broad acceptance for poles and piling. The permeability of the wOO4.l enables it to be readily dried and given preservative treatment. The southern pines, then, are an important national resource, and technological developments affecting their conversion have a substantial impact on the economy of the nation. What are some recent developments?
منابع مشابه
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