bole | R Documentation |
Data from a stratified random sample of 0.1ha circular plots where total standing tree bole volume was recorded for the trees within each plot. The total area of the softwood, mixed, and hardwood strata are 42541ha, 17250ha, and 32435ha, respectively.
bole
A data frame with 60 observations and two variables:
total plot tree bole volume in cubic meters
sampling stratum (softwood, mixed, or hardwood stratum)
Cunia, T. (1979). Basic designs for survey sampling: Simple stratified, cluster, and systematic sampling. Forest Biometry Monograph Series 3, College of Environmental Science and Forestry, State University of New York, Syracuse, New York.
Gregoire, T. G. & Valentine, H. T. (2007). Sampling strategies for natural resources and the environment. Boca Raton, FL: Chapman & Hall/CRC.
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