3-PG is a process model based on Physiological Principles to Predict Growth. It is designed for even-aged plantations of evergreen species, although it has been modified to simulate growth of deciduous forests and multiple storied tropical forests. Another form of the model is designed to be run using satellite-derived data for estimating light interception (3PGS).
Flyer of 3-PG Workshop and Course (FS 599, Jan. 2004)
Excel spreadsheet version of the
3-PG model
Tutorials: (1) Generating Climatic data, (2) Thinning Exercise, (3) Environmental Analysis, (4) Allometric Equations, (5) Special Projects
Landsberg & Waring (1997) paper describing model (pdf)
List of 3-PG and
3-PGS publications
Peter Sand’s
Presentation of 3-PG model (ppt), (pdf)
Peter Sand’s Manual for using the
spreadsheet version of 3-PG
To order or Download C++ and C++ with ArcView:
http://www.ffp.csiro.au/fap/3pg/
Applications of 3-PG in Brazilian Eucalyptus
plantations (pdf)