Stripcut-thinning of Ponderosa Pine Stands
Author : Peter F. Ffolliott
Publisher :
Page : 28 pages
File Size : 36,5 MB
Release : 2001
Category : Forest thinning
ISBN :
Author : Peter F. Ffolliott
Publisher :
Page : 28 pages
File Size : 36,5 MB
Release : 2001
Category : Forest thinning
ISBN :
Author : Peter F. Ffolliott
Publisher :
Page : 7 pages
File Size : 33,15 MB
Release : 2001
Category : Forest thinning
ISBN :
Author :
Publisher :
Page : 12 pages
File Size : 47,31 MB
Release : 1998
Category : Forests and forestry
ISBN :
Author : Deborah C. Hayes
Publisher : Springer
Page : 666 pages
File Size : 39,97 MB
Release : 2014-07-22
Category : Science
ISBN : 1461418186
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 : James M. Turner
Publisher :
Page : 18 pages
File Size : 25,92 MB
Release : 1974
Category : Forest management
ISBN :
Author :
Publisher :
Page : 100 pages
File Size : 49,47 MB
Release : 1998
Category : Forests and forestry
ISBN :
Author :
Publisher :
Page : 122 pages
File Size : 12,96 MB
Release : 2002
Category : Forests and forestry
ISBN :
Author :
Publisher :
Page : 128 pages
File Size : 16,37 MB
Release : 1995
Category :
ISBN :
Author :
Publisher :
Page : 308 pages
File Size : 46,21 MB
Release : 1998
Category : Forests and forestry
ISBN :
Author :
Publisher :
Page : 234 pages
File Size : 17,77 MB
Release : 1983
Category : Birds
ISBN :
These proceedings include 41 papers focusing attention on the need to integrate management of snags - dead or deteriorating trees critical to needs of cavity-dependent wildlife - with other resource uses and demands. Sessions concentrated on management, habitat and species requirements, and monitoring and modeling.