Locations and sizes of 134 Norwegian spruce trees in a rectangular 
portion (56m x 38m) of a sixty-year-old stand in the Tharandter Wald, 
a forested area in Saxony, Germany.
 id: identifier (1 to 134)
  x: x-coordinate
  y: y-coordinate
dbh: diameter in centimetres at breast height (1.3m) of the tree

Diameter at breast height is a standard measurement used in forestry.

The data were downloaded from:
   http://users.jyu.fi/~penttine/ppstatistics/data/Spruces_Fig_6_12.txt

Users of these data should acknowledge the source as:
   Ilian, J., Penttinen, A., Stoyan, H. and Stoyan, D. (2008). Statistical 
   Analysis and Modelling of Spatial Point Patterns. Chichester: Wiley.