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Upper Flat Creek forest cruise tree data
Description
Forest measurement data from the Upper Flat Creek unit of the University of Idaho Experimental Forest, measured in 1991.
Usage
ufc Format
A data frame with 336 observations on the following 5 variables; plot (plot label), tree (tree label), species (species kbd with levels DF, GF, WC, WL), dbh.cm (tree diameter at 1.37 m. from the ground, measured in centimetres.), height.m (tree height measured in metres).
Details
The inventory was based on variable radius plots with 6.43 sq. m. per ha. BAF (Basal Area Factor). The forest stand was 121.5 ha. This version of the data omits errors, trees with missing heights, and uncommon species. The four species are Douglas-fir, grand fir, western red cedar, and western larch.
Source
Harold Osborne and Ross Appelgren of the University of Idaho Experimental Forest.
References
Robinson, A.P., and J.D. Hamann. 2010. Forest Analytics with R: an Introduction. Springer.
Examples
data(ufc)