PTAEDA3.1: Simulation of Individual Tree Growth, Stand Development and Economic Evaluation in Loblolly Pine Plantations.

          PTAEDA3.1 is a growth and yield model for professional foresters that provides yield estimates in tons to various merchantability limits for pulpwood, chip-and-saw, and sawtimber product categories. Significant enhancements over the base model include the capability to input directly the diameter distribution of an existing stand along with the percent of trees in each diameter class that are defective. This capability is essential for accurate segregation of volumes by product class and for accurate projections of future volumes. In addition, a graphical thinning capability has been added so that selection of trees to be thinned is completely flexible.

          Developed in conjunction with Paul Teter, Forester, LLC pdteter@surfsouth.com version 3.1 can be a valuable tool for helping professional foresters manage loblolly pine plantations in the South.

Download a Demonstration Version 

To download a demonstration version:

1. Click PTAEDA3.1 to start downloading.

2. With your web browser select "save this program to disk".

3. Run the file saved in step 2 by double clicking it. The setup utility starts.

4. Run the demo program in the destination directory of step 3.

5. The demonstration version site index is fixed at 60 feet. 

     A detailed users manual is available at no charge. The executable computer code for Windows can be obtained for $175.00. To place an order, contact Ralph Amateis at ralph@vt.edu.

PTAEDA3.1 user manual

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copyright© 2000 VPI