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Permanent-plot Procedures for Silvicultural and Yield Research

Robert O. Curtis
Permanent-plot Procedures for Silvicultural and Yield Research by Robert O. Curtis PDF

Author : Robert O. Curtis
Publisher :
Page : 92 pages
File Size : 31,69 MB
Release : 2005
Category : Forest site quality
ISBN :

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This paper reviews purposes and procedures for establishing and maintaining permanent plots for silvicultural and yield research, sampling and plot design, common errors, and procedures for measuring and recording data. It is a revision and update of a 1983 publication. Although some details are specific to coastal Pacific Northwest conditions, most of the material is widely applicable.

Sample Plots in Silvicultural Research

United States. Forest Service. Branch of Research. Division of Silvics
Sample Plots in Silvicultural Research by United States. Forest Service. Branch of Research. Division of Silvics PDF

Author : United States. Forest Service. Branch of Research. Division of Silvics
Publisher :
Page : 104 pages
File Size : 32,41 MB
Release : 1935
Category : Forests and forestry
ISBN :

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"It is the purpose of the circular to present to foresters with research responsibilities an outline of the technic of sample-plot procedure in order that the standards of the work may be raised, that the findings from studies of data obtained in one region may be applicable in other regions, and that silvicultural research as a whole may yield conclusive results in less time."--Page 3

Silvicultural Research and the Evolution of Forest Practices in the Douglas-fir Region

Silvicultural Research and the Evolution of Forest Practices in the Douglas-fir Region by PDF

Author :
Publisher :
Page : 176 pages
File Size : 33,98 MB
Release : 2007
Category : Douglas fir
ISBN :

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Silvicultural 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.