Author: William B. Leak
Publisher:
ISBN:
Category : Forest management
Languages : en
Pages : 46
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Book Description
This revision of the 1987 silvicultural guide (Leak et al. 1987) includes updated and expanded silvicultural information on northern hardwoods as well as additional information on wildlife habitat and the management of mixed-wood and northern hardwood-oak stands. The prescription methodology is simpler and more field-oriented. This guide also includes an appendix of familiar tables and charts useful to practicing field foresters. Northern hardwood forest types can be managed as even- or uneven-aged stands using a variety of silvicultural practices. In planning these practices, there are many factors to consider including access, species composition, desired regeneration, wildlife habitat needs and environmental concerns. The aim of this document is to provide guidelines to assist the manager in choosing the right methods to meet the landowner objectives consistent with stand conditions.
Author: William B. Leak
Publisher:
ISBN:
Category : Forest management
Languages : en
Pages : 40
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Book Description
Author: William B. Leak
Publisher:
ISBN:
Category : Forest management
Languages : en
Pages : 40
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Book Description
Author: Carl Herman Tubbs
Publisher:
ISBN:
Category : Hardwoods
Languages : en
Pages : 40
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Book Description
Author: Dale S. Solomon
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 20
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Book Description
S2SIMSAP and SlMTlM are computer programs that have been developed to simulate the stand growth and development of natural and treated even-aged northern hardwood stands. SIMSAP begins with species distributions by quality classes in sapling stands after regeneration. SIMTIM, the poletimber-sawtimber-harvest phase, uses stocking guides based on quadratic mean stand diameter, number of trees, and basal area per acre of trees in the main crown canopy. Using available data, the connecting phases of the models have been tebted to determine the effects of silvicultural treatments (or no treatment) on long-term stand response. The models are coded in FORTRAN 77 and are available on mainframe and IBM compatible microcomputers with a minimum of 256 K.S3.
Author: Russell M. Burns
Publisher:
ISBN:
Category : Conifers
Languages : en
Pages : 898
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Book Description
Author: William B. Leak
Publisher:
ISBN:
Category : Forest management
Languages : en
Pages : 24
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Book Description
Author: Deborah C. Hayes
Publisher: Springer
ISBN: 1461418186
Category : Science
Languages : en
Pages : 666
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Book Description
USDA Forest Service Experimental Forests and Ranges (EFRs) are scientific treasures, providing secure, protected research sites where complex and diverse ecological processes are studied over the long term. This book offers several examples of the dynamic interactions among questions of public concern or policy, EFR research, and natural resource management practices and policies. Often, trends observed – or expected -- in the early years of a research program are contradicted or confounded as the research record extends over decades. The EFRs are among the few areas in the US where such long-term research has been carried out by teams of scientists. Changes in society’s needs and values can also redirect research programs. Each chapter of this book reflects the interplay between the ecological results that emerge from a long-term research project and the social forces that influence questions asked and resources invested in ecological research. While these stories include summaries and syntheses of traditional research results, they offer a distinctly new perspective, a larger and more complete picture than that provided by a more typical 5-year study. They also provide examples of long-term research on EFRs that have provided answers for questions not even imagined at the time the study was installed.
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 534
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Book Description
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 420
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Book Description
