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3 edition of Bias and precision of the Barr and Stroud dendrometer under field conditions found in the catalog.

Bias and precision of the Barr and Stroud dendrometer under field conditions

James E. Brickell

Bias and precision of the Barr and Stroud dendrometer under field conditions

by James E. Brickell

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  • 6 Currently reading

Published by Intermountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture in Ogden, Utah .
Written in English

    Subjects:
  • Dendrometers

  • Edition Notes

    Bibliography: p. 37-41.

    StatementJ.E. Brickell.
    SeriesResearch paper INT -- 186.
    The Physical Object
    Pagination46 p. :
    Number of Pages46
    ID Numbers
    Open LibraryOL17817961M
    OCLC/WorldCa2755575


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Bias and precision of the Barr and Stroud dendrometer under field conditions by James E. Brickell Download PDF EPUB FB2

Bias and Precision of the Barr and Stroud Dendrometer Under Field Conditions,Research Paper, INT 46 pages. [Brickell, J. E.] on *FREE* shipping on qualifying offers. Bias and Precision of the Barr and Stroud Dendrometer Under Field Conditions,Research Paper, INT Author: J.

Brickell. Bias and precision of the Barr and Stroud dendrometer under field conditions. Ogden, Utah: Intermountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, (OCoLC) Material Type: Government publication, National government publication, Internet resource: Document Type: Book, Internet Resource.

Bias and precision of the Barr and Stroud dendrometer under field conditions / (Ogden, Utah: Dept. of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station, ), by James E. Brickell, United States Forest Service, and Intermountain Forest and Range Experiment Station (Ogden, Utah) (page images at HathiTrust).

U.S. Forest Service Intermountain Region National Agricultural Library. share Share No_Favorite Vascular plants of west-central Montana: identification guide book. by Lackschewitz, Klaus Bias and precision of the Barr and Stroud dendrometer under field conditions. by Brickell, James E. Brickell, J.

Bias and Precision of the Barr and Stroud Dendrometer Under Field Conditions. United States Department of Agriculture, Forest Service,Research Paper, INT 46 pages. Softbound, very good condition. $ Bias, Accuracy and Precision.

Accuracy Accuracy refers to the success of estimating the Varying methods and conditions of felling and conversion c) Personal bias of the estimator d) Biological character of the forest and Stroud dendrometer are used to measure.

Evaluation of the Laser-relascope. This kind of bias is comparable to that obtained from the Barr & Stroud dendrometer (Williams et al., ), long considered to be the standard tool in.

A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the : Gyde Lund. Van Laar and Akça’s popular text book, Forest Mensuration, was first published in Like that first edition, this modern update is based on extensive research, teaching and practical experience in both Europe, and the tropics and subtropics.

Calibrated Barr & Stroud FP15 and Criterion laser dendrometers were tested for reliability in measuring upper stem diameters and heights under typical field conditions. Data were collected in the Black Hills National Forest, which covers parts of South Dakota and Wyoming in the United States.

Use a Barr & Stroud dendrometer or similarly accurate instrument that can take upper stem measurements of standing trees (non-destructive sampling). BORROW FROM ANOTHER SPECIES: If there is an existing volume equation from another species with a similar growth form, validate it by following the procedure in Step 1 above.

To accomplish these goals, the book provides a short summary of the history of forest resources assessments, introduces some general aspects of the planning and organization of forest inventories, gives an overview of the assessment of attributes of single trees and forest stands, including global positioning systems and location-based services.

(Figure 2). On the othe c = control value x. = individual observation l n = no. of observations hand its precision is low and the individual bias is remarkable. Highest precision and lowest individual bias were obtained by using the Barr and Stroud dendrometer.

(Figure 3). This however was only after some obviously wrong results had been removed. Research Note - PDF Free Download - In forest inventories, an existing standard volume equation may be considered for appli- cation to a local area (subpopulation), or to the same species in a different geographic region (new population).

In order to use a volume model with confidence under these situations, an applicability test must be carried out to determine the actual accuracy of the model. Procedures based on a. Sampling Methods Remote Sensing and GIS Multiresource Forest Inventory such as the Barr & Stroud dendrometer, are mounted on a fixed base, and the angle of measurement is varied.

With fixed-angle range finders (e.g., the Breithaupt TODIS) the angle of the optics is predetermined and the baseline is varied.

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