Plant Communities of the HJ Andrews Experimental Forest (revised 2009). A total of 23 forest communities have been identified and characterized in a preliminary manner. Data used in formatting the classification had previously been collected on 300 reconnaissance plots located on the H. J. Andrews Forest and surrounding area. Vegetation classification was facilitated by similarity analysis and stand ordination procedures developed by Dr. Will Moir, formerly of Colorado State University. Results of stand ordination indicate the presence of strong moisture and temperature gradients along which forest stands array themselves. The forest communities recognized in this classification are listed in the following internal report: http://andrewsforest.oregonstate.edu/pubs/pdf/pub1741.pdf
Glenn M. Hawk, Mark D Schulze, Theresa J. Valentine
For research purposes.The 1990 version was updated in 2009 to include vegetation class coding and was projected to NAD83 and converted to a shape file.