Forest-fire Danger as Related to Airmass in the Ouachita Mountains PDF Download
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Author: Myron W. Gwinner
Publisher:
ISBN:
Category : Forest fire forecasting
Languages : en
Pages : 4
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Book Description
Author: Myron W. Gwinner
Publisher:
ISBN:
Category : Forest fire forecasting
Languages : en
Pages : 4
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Book Description
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 4
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Author: Southern Forest Experiment Station (New Orleans, La.)
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 596
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Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 168
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Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 514
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Author: Walter E. Cole
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 16
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Tree losses resulting from infestation by the mountain pine beetle (Dendroctonus ponderosae Hopkins) were measured in two stands of lodgepole pine (Pinus contorta Dougl.) where the beetle population had previously been epidemic. Measurement data showed that larger diameter trees were infested and killed first. Tree losses ranged from 1 percent of trees 4 inches (d.b.h.) to 87 percent of those 16 inches and greater d.b.h. Numbers of adult beetle emergence holes averaged 1.3 per square foot of bark area in trees 7 inches d.b.h. and 62 in trees 28 inches and greater d.b.h. The observations indicate that large infestations of mountain pine beetle depend on the presence of large diameter trees within a stand of lodgepole pine, thus implying that beetle population growth is food-limited.
Author: William C. Fischer
Publisher:
ISBN:
Category : Fire weather
Languages : en
Pages : 8
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Author: Southern Forest Experiment Station (New Orleans, La.)
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 114
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Author: Roscoe B. Herrington
Publisher:
ISBN:
Category : National parks and reserves
Languages : en
Pages : 660
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Author: Western Forest Fire Committee
Publisher:
ISBN:
Category : Forest fires
Languages : en
Pages : 632
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