Radial increments of Pinus pinaster from two sample plots
in northern (Soria) and east-central Spain (Cuenca).
Usage
data(Prings05)
Arguments
Format
A data frame with the following 5 variables.
Details
This dataset contains eight series of tree-ring widths of
maritime pine (Pinus pinaster Ait.), with recorded years spanning from 1810
to 2005. The cores were sampled from dominant trees of two sites, with
sample plots being located on both: northern (plot code: P44005) and
east-central Spain (plot code: P16106). Two trees were selected by plot,
and two core samples were extracted by tree. Consequently, the sample
design defined three levels: sample in tree on plot (plot level), sample
in tree (tree level), and sample level.
References
Bogino, S., and Bravo, F. (2008). Growth response of Pinus pinaster Ait. to climatic variables in central Spanish forests. Ann. For. Sci. 65, 1-13.