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Author: Richard E. Miller
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 726
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Book Description
Author: Richard E. Miller
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 726
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Book Description
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 80
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Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 56
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Book Description
This bibliography lists publications and postgraduate theses in the field of forestry economics in the United States and Canada in 1960, 1961, and 1962.
Author: Don Minore
Publisher:
ISBN:
Category : Coast redwood
Languages : en
Pages : 76
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Book Description
Author: Robert B. Forster
Publisher:
ISBN:
Category : Afforestation
Languages : en
Pages : 122
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Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 34
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Author: Don Minore
Publisher:
ISBN:
Category : Trees
Languages : en
Pages : 80
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Book Description
Author: Bruce J. Zobel
Publisher: Springer Science & Business Media
ISBN: 3642721265
Category : Technology & Engineering
Languages : en
Pages : 311
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Book Description
The trend in forestry is toward shorter rotations and more complete utiliza tion of trees. The reasons are: (1) financial pressures to obtain rapid returns on the forestry investment made possible by an earlier harvest; (2) enforced harvest of young plantations to maintain a continuing supply of cellulose for mills where wood shortages are experienced; (3) thinning young plantations, both because they were planted too densely initially and because thinning is done where long rotation quality trees are the forestry goal; (4) more intensive utilization is being done using tops and small diameter trees; and (5) there is interest in using young (juvenile) wood for special products because of its unique characteristics and the development of new technologies. The largest present-day source of conifer juvenile wood is from thinnings of plantations where millions of hectares of pine were planted too densely. Because of the better growth rate resulting from improved silviculture and good genetic stock, plantations will need to be thinned heavily. As a result of this trend, young wood makes up an increasingly larger proportion of the total conifer wood supply each year. Large amounts of juvenile wood from hard woods are also currently available, especially in the tropics and subtropics, because of the fast growth rate of the species used, which results in shorter rotations and ess~ntially all juvenile wood.
Author: L. Jack Lyon
Publisher:
ISBN:
Category : Prescribed burning
Languages : en
Pages : 36
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Author:
Publisher:
ISBN:
Category : Forest fires
Languages : en
Pages : 1320
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Book Description
