Author : Gary W. Miller
Publisher :
Page : 23 pages
File Size : 22,75 MB
Release : 2008
Category :
ISBN :
[PDF] Technical Guide To Crop Tree Release In Hardwood Forests eBook
Technical Guide To Crop Tree Release In Hardwood Forests Book in PDF, ePub and Kindle version is available to download in english. Read online anytime anywhere directly from your device. Click on the download button below to get a free pdf file of Technical Guide To Crop Tree Release In Hardwood Forests book. This book definitely worth reading, it is an incredibly well-written.
Crop Tree Field Guide
Author : Arlyn W. Perkey
Publisher :
Page : 150 pages
File Size : 13,37 MB
Release : 2001
Category : Tree farms
ISBN :
Precommercial Crop-tree Thinning in a Mixed Northern Hardwood Stand
Author : Nancy G. Voorhis
Publisher :
Page : 8 pages
File Size : 10,92 MB
Release : 1990
Category : Forests and forestry
ISBN :
The effectiveness of precommercial crop tree thinning was investigated by thinning crop trees of paper birch, yellow birch, and sugar maple to two intensity levels at 8 years of age. Analysis of covariance on post thinning growth measurements taken 7 years later indicated a significant increase in diameter and crown-diameter growth, with the pattern of response varying by species. The study suggests that a uniform crop-tree thinning treatment for a stand composed of species with varying tolerances will rarely produce the best response for all the species.
A Guide to Hardwood Timber Stand Improvement
Author : Kenneth F. Lancaster
Publisher :
Page : 12 pages
File Size : 48,77 MB
Release : 1975
Category : Forest management
ISBN :
The Argonne Forest
Author :
Publisher :
Page : 16 pages
File Size : 30,80 MB
Release : 1993
Category : Forest management
ISBN :
How to Release Crop Trees in Precommercial Hardwood Stands
Author :
Publisher :
Page : pages
File Size : 27,30 MB
Release : 1999*
Category : Hardwoods
ISBN :
Crop Tree Management in Eastern Hardwoods
Author : Arlyn W. Perkey
Publisher :
Page : 58 pages
File Size : 14,6 MB
Release : 1994
Category : Ecosystem management
ISBN :
Response to crop-tree release
Author : Neil I. Lamson
Publisher :
Page : 12 pages
File Size : 43,49 MB
Release : 1978
Category : Clear-cutting
ISBN :
Applying a Crop-tree Release in Small-sawtimber White Oak Stands
Author : Jeffrey W. Stringer
Publisher :
Page : 24 pages
File Size : 11,14 MB
Release : 1988
Category : Forest thinning
ISBN :
S2Small-sawtimber white oak crop trees in Kentucky were released by a crown-touching technique. In two cutting treatments, 20 and 34 crop trees were released per acre at a total cost of $35 and $42, respectively. Both treatments yielded commercial volumes of cut material. Total mean merchantable volume (>5.0 inches d.b.h.) in cut trees was 693 cubic feet/acre, with approximately 2,400 board feet/acre in sawtimber (2 11.0 inches d.b.h.). On the basis of early crop-tree stem response, the released trees are growing 0.16 inch/year compared with 0.13 inch/year for the unreleased trees. S3.
USDA Forest Service Experimental Forests and Ranges
Author : Deborah C. Hayes
Publisher : Springer
Page : 666 pages
File Size : 33,99 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.