Tree shaking machine aids cone collection in a Douglas-fir seed orchard
Author: Donald L. Copes
Publisher:
Published: 1983
Total Pages: 8
ISBN-13:
DOWNLOAD EBOOKRead and Download eBook Full
Author: Donald L. Copes
Publisher:
Published: 1983
Total Pages: 8
ISBN-13:
DOWNLOAD EBOOKAuthor: Donald L. Copes
Publisher:
Published: 1983
Total Pages:
ISBN-13:
DOWNLOAD EBOOKAuthor: United States. Forest Service
Publisher: Forest Service
Published: 2008
Total Pages: 1240
ISBN-13:
DOWNLOAD EBOOKAuthor:
Publisher:
Published: 2009
Total Pages: 1240
ISBN-13:
DOWNLOAD EBOOKAuthor:
Publisher:
Published: 1999
Total Pages: 172
ISBN-13:
DOWNLOAD EBOOKSome no. include reports compiled from information furnished by State Foresters (and others).
Author:
Publisher:
Published: 1997
Total Pages: 260
ISBN-13:
DOWNLOAD EBOOKSome no. include reports compiled from information furnished by State Foresters (and others).
Author:
Publisher:
Published: 2007
Total Pages: 618
ISBN-13:
DOWNLOAD EBOOKAuthor:
Publisher:
Published: 2007
Total Pages: 176
ISBN-13:
DOWNLOAD EBOOKSilvicultural practices in the Douglas-fir region evolved through a combination of formal research, observation, and practical experience of forest managers and silviculturists, and changing economic and social factors. This process began more than a century ago and still continues. It has had a great influence on the economic well-being of the region and on the present characteristics of the regions forests. This long history is unknown to most of the public, and much of it is unfamiliar to many natural resource specialists outside (and even within) the field of silviculture. We trace the history of how we got where we are today and the contribution of silvicultural research to the evolution of forest practices. We give special attention to the large body of information developed in the first half of the past century that is becoming increasingly unfamiliar to both operational foresters andperhaps more importantlyto those engaged in forestry research. We also discuss some current trends in silviculture and silviculture-related research.