Author: Audra E. KolbePublisher:
ISBN:
Category :
Languages : en
Pages : 190
Book Description
A Growth Model for Wisconsin's and Michigan's Northern Hardwoods, and Management Implications
Author: Audra E. KolbeFresh ideas, perspectives, and protocols associated with forest inventory and analysis surveys
Author: General Technical Report SRS
Author: Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 136
Book Description
General Technical Report PNW-GTR
Author: Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 578
Book Description
WestPro, a Computer Program for Simulating Uneven-aged Douglas-fir Stand Growth and Yield in the Pacific Northwest
Author: Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 32
Book Description
WestPro is an add-in program designed to work with Microsoft Excel to simulate the growth of uneven-aged Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) stands in the Pacific Northwest region of the United States. Given the initial stand state, defined as the number of softwood and hardwood trees per acre by diameter class, WestPro predicts the future stand state for each year of a predetermined time horizon. Management regimes are defined by a target stand distribution and a cutting cycle. Performance indicators include diversity of tree size and species, timber yield, and net present value of harvest over the given horizon. This paper contains background information on the WestPro program and instructions and suggestions for its application. By working the examples found in the text, the user will learn how to simulate the growth of a given initial stand and to predict how different management regimes may affect stand structure, yield, and diversity. Limitations of the model also are discussed.
A Growth and Yield Model for Uneven-aged Douglas-fir Forests in the Pacific Northwest, Computer Simulation and Management Applications
Author: Rebecca E. RalstonGeneral Technical Report SO.
Author: Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 538
Book Description
Proceedings of the Southern Forest Economics Workshop on Evaluating Even and All-aged Timber Management Options for Southern Forest Lands
Author: USDA Forest Service Experimental Forests and Ranges
Author: Deborah C. HayesPublisher: Springer
ISBN: 1461418186
Category : Science
Languages : en
Pages : 666
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: