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A Field Test of the Relative-Weight-Estimate Method for Determining Herbage Production
Author
Hutchings, S. S.
Schmautz, J. E.
Publisher
Society for Range Management
Publication Year
1969-11-01
Body

Reliable estimates of total herbage yield can be made by the relative-weight-estimate method. The method is based on the concept that it is easier and more accurate to estimate herbage yield as a percent of yield from a base plot than it is to estimate yields directly in grams or pounds. Estimates of total herbage are reasonably accurate, but they are less accurate for vegetation classes of grasses, forbs, and shrubs and for individual species. This method generally contains an inherent bias that cannot be detected unless a double-sampling procedure is used to check and correct field estimates. This material was digitized as part of a cooperative project between the Society for Range Management and the University of Arizona Libraries. The Journal of Range Management archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information. Migrated from OJS platform August 2020

Language
en
Resource Type
Text
Document Type
Journal Issue/Article
Digital Object Identifier (DOI)
10.2307/3895852
Additional Information
Hutchings, S. S., & Schmautz, J. E. (1969). A field test of the relative-weight-estimate method for determining herbage production. Journal of Range Management, 22(6), 408-411.
ISSN
0022-409X
OAI Identifier
oai:repository.arizona.edu:10150/649845
Journal Volume
22
Journal Number
6
Journal Pages
408-411
Collection
Rangeland Ecology & Management (REM)
Journal Name
Journal of Range Management
Keywords
field tests
Relative Weight Estimate
Training Periods
Observers
Bias
Mental Image
Light Conditions
Observer Fatigue
attitudes
Montana Power Park
Vigilante
Modesty Creek
Field Estimates
Vegetation Classes
estimates
herbage production
accuracy