This advanced system allows land managers to analyze various silviculture investment options and determine which option provides the best return. Designed by foresters for use by foresters and land managers, SILVIRR seamlessly integrates sophisticated tree level and stand level growth projection modeling and financial impact analyses as associated with user-defined silviculture prescriptions. This system will display results using a variety of reporting formats and provides customizable business graphics. 

Features:

• Easy to use Windows interface.
• Metric or Imperial data input/output.
• Can be run against existing forest inventory data files.
• Based on Dr. J.D Arney's SPS growth and yield simulator which has an external parameter library enabling the model to be easily calibrated to local species and growth conditions.  The model has been calibrated for use in many parts of North America as well as in Northern China and Southern Chile.
• Financial impact assessment based on single and multiple prescription types (regeneration, site preparation, pre-commercial thinning, fertilization, commercial thinning, selection harvests (partial cut) and clearcut harvesting).
• User defined log grades and log sorts.
• User defined inflation rate, discount rate and log sort prices and log sort price appreciation rates.  Log rates can be split into various log sorts.  Log sorts can be split into domestic and export.  Prices are assigned to log sorts as per the usual marketing practice.
• Log sort prices can be set for both domestic and export markets.
• Volumes are reported by log grades and sort class definitions.
• NPV and IRR calculations based on each regime and regime scenario.

Contact us for more information or an on-line demonstration.