A ground-survey method for estimating loss caused by Phellinus weirii root rot. II. Survey procedures and data analysis / W.J. Bloomberg, P.M. Cumberbirch and G. W Wallis.  : Fo29-5/4E-PDF

"Procedures are described for designing a ground-survey for Phellinus weirii root rot in forest stands. Office procedures include selection of baseline location and number, location and width of transect lines. Field procedures include measurement of infection centers by intersection length, rectangular, radialor linear methods. Five survey method options include measurement of infection centers, estimation of infection center area, assignment of infection centers to size classes, measurement of intersection length, and assignment of intersection length. Methods for recording, analyzing and summarizing field data are described for intersection length and probability of occurrence methods. A computer program for analyzing and mapping the data is described. Three mapping options provide a range of detail in maps of infection centers."--Summary, page 2.

Lien permanent pour cette publication :
publications.gc.ca/pub?id=9.870426&sl=1

Renseignements sur la publication
Ministère/Organisme Canada. Environment Canada.
Canadian Forestry Service.
Pacific Forest Research Centre.
Titre A ground-survey method for estimating loss caused by Phellinus weirii root rot. II. Survey procedures and data analysis / W.J. Bloomberg, P.M. Cumberbirch and G. W Wallis.
Variante du titre Survey procedures and data analysis
Titre de la série [Report] ; BC-R-4
Type de publication Série - Voir l'enregistrement principal
Langue [Anglais]
Format Électronique
Document électronique
Note(s) Cover title.
Includes bibliographical references (page 23).
Includes summary in French.
Information sur la publication Victoria, B.C. : Environment Canada, Canadian Forestry Service, Pacific Forest Research Centre, October 1980.
Auteur / Contributeur Bloomberg, W. J., author.
Cumberbirch, Peter Mark, 1948- author.
Wallis, G. W., author.
Description 1 online resource (44 pages) : illustrations.
Numéro de catalogue
  • Fo29-5/4E-PDF
Descripteurs Trees
Plant diseases
Surveys
Demander des formats alternatifs
Pour demander une publication dans un format alternatif, remplissez le formulaire électronique des publications du gouvernement du Canada. Utilisez le champ du formulaire «question ou commentaire» pour spécifier la publication demandée.
Date de modification :