Author: Arthur W. Magill
Publisher:
ISBN:
Category : Abies concolor
Languages : en
Pages : 490
Book Description
A two-stage shelterwood cutting, at 12 trees per acre, with site preparation, enhanced seedfall, regeneration, and residual growth at the Challenge Experimental Forest, north central California. Shelterwood trees produced 9.2 times more seed than trees in the control. Ponderosa pine regeneration numbered about 3700 seedlings per acre (9139 per ha) and tolerant conifers 600 seedlings (1482 per ha) after 5 years. Hardwood seedlings and sprouts also were abundant. Basal area growth rates for all species in nearly all diameter classes were greater in the shelterwood than in the control. The shelterwood cutting method is recommended for use in young-growth, mixed-conifer stands.
Radiation Effects on Moisture in Ponderosa Pine Litter
Author: Arthur W. Magill
Publisher:
ISBN:
Category : Abies concolor
Languages : en
Pages : 490
Book Description
A two-stage shelterwood cutting, at 12 trees per acre, with site preparation, enhanced seedfall, regeneration, and residual growth at the Challenge Experimental Forest, north central California. Shelterwood trees produced 9.2 times more seed than trees in the control. Ponderosa pine regeneration numbered about 3700 seedlings per acre (9139 per ha) and tolerant conifers 600 seedlings (1482 per ha) after 5 years. Hardwood seedlings and sprouts also were abundant. Basal area growth rates for all species in nearly all diameter classes were greater in the shelterwood than in the control. The shelterwood cutting method is recommended for use in young-growth, mixed-conifer stands.
Publisher:
ISBN:
Category : Abies concolor
Languages : en
Pages : 490
Book Description
A two-stage shelterwood cutting, at 12 trees per acre, with site preparation, enhanced seedfall, regeneration, and residual growth at the Challenge Experimental Forest, north central California. Shelterwood trees produced 9.2 times more seed than trees in the control. Ponderosa pine regeneration numbered about 3700 seedlings per acre (9139 per ha) and tolerant conifers 600 seedlings (1482 per ha) after 5 years. Hardwood seedlings and sprouts also were abundant. Basal area growth rates for all species in nearly all diameter classes were greater in the shelterwood than in the control. The shelterwood cutting method is recommended for use in young-growth, mixed-conifer stands.
USDA Forest Service Research Paper PSW.
Author: Pacific Southwest Forest and Range Experiment Station (Berkeley, Calif.)
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 574
Book Description
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 574
Book Description
Forestry Research West
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 392
Book Description
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 392
Book Description
USDA Forest Service Research Paper PSW.
Modeling Moisture Content of Fine Dead Wildland Fuels
Author: Richard C. Rothermel
Publisher:
ISBN:
Category : Forest fires
Languages : en
Pages : 68
Book Description
Describes a model for predicting moisture content of fine fuels for use with the BEHAVE fire behavior and fuel modeling system. The model is intended to meet the need for more accurate predictions of fine fuel moisture, particularly in northern conifer stands and on days following rain. The model is based on the Canadian Fine Fuel Moisture Code (FFMC), modified to account for solar heating of fuels and to predict diurnal trends in fine fuel moisture. The model may be initiated without extensive data on prior weather. When compared to the FFMC and the fire behavior officers' procedures, the new model gave consistently better predictions over the complete range of fuel conditions.
Publisher:
ISBN:
Category : Forest fires
Languages : en
Pages : 68
Book Description
Describes a model for predicting moisture content of fine fuels for use with the BEHAVE fire behavior and fuel modeling system. The model is intended to meet the need for more accurate predictions of fine fuel moisture, particularly in northern conifer stands and on days following rain. The model is based on the Canadian Fine Fuel Moisture Code (FFMC), modified to account for solar heating of fuels and to predict diurnal trends in fine fuel moisture. The model may be initiated without extensive data on prior weather. When compared to the FFMC and the fire behavior officers' procedures, the new model gave consistently better predictions over the complete range of fuel conditions.
Estimating Ponderosa Pine Fuel Moisture Using National Fire-Danger Rating Moisture Values
Author: Michael G. Harrington
Publisher:
ISBN:
Category : Forest fire forecasting
Languages : en
Pages : 12
Book Description
Publisher:
ISBN:
Category : Forest fire forecasting
Languages : en
Pages : 12
Book Description
Research Paper INT.
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 268
Book Description
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 268
Book Description
Research Note RM
Monthly Catalogue, United States Public Documents
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1136
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1136
Book Description
Monthly Catalog of United States Government Publications
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1066
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1066
Book Description