Marking Guides for Northern Hardwoods Under the Selection System
Author : Carl Arbogast
Publisher :
Page : 28 pages
File Size : 18,82 MB
Release : 1957
Category : Forest management
ISBN :
Author : Carl Arbogast
Publisher :
Page : 28 pages
File Size : 18,82 MB
Release : 1957
Category : Forest management
ISBN :
Author : Eugene Irving Roe
Publisher :
Page : 564 pages
File Size : 28,53 MB
Release : 1963
Category : Jack pine
ISBN :
Author : C. L. Massey
Publisher :
Page : 1126 pages
File Size : 16,9 MB
Release : 1973
Category : Agricultural laws and legislation
ISBN :
Author :
Publisher :
Page : 342 pages
File Size : 29,24 MB
Release : 1986
Category :
ISBN :
Author : Lake States Forest Experiment Station (Saint Paul, Minn.)
Publisher :
Page : 216 pages
File Size : 42,79 MB
Release : 1956
Category : Forests and forestry
ISBN :
Author : North Central Forest Experiment Station (Saint Paul, Minn.)
Publisher :
Page : 350 pages
File Size : 47,43 MB
Release : 1967
Category : Forests and forestry
ISBN :
Author :
Publisher :
Page : 72 pages
File Size : 22,8 MB
Release : 1968
Category : Forest genetics
ISBN :
Author :
Publisher :
Page : 528 pages
File Size : 15,91 MB
Release : 1968
Category : Forests and forestry
ISBN :
Author : Susan Flader
Publisher : U of Minnesota Press
Page : 374 pages
File Size : 45,48 MB
Release : 1983-01-01
Category : Business & Economics
ISBN : 1452907943
Author : Deborah C. Hayes
Publisher : Springer
Page : 666 pages
File Size : 33,31 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.