The annual treatment plan for the Brown Tract is broken into three candidate stand categories and one subcategory. As determined by the Brown Tract staff, the categories are; Pre-commercial, Commercial which includes the subcategory of at least 200 trees per acre, and Final Harvest. Pre-commercial stands contain even aged stands that are less than or equal to 20 years old and have at least 400 trees per acre. Commercial stands are even aged stands that are between 30 and 40 years old. Final Harvest stands are between 45 and 100 years old and contain at least 30 MBF per acre.
The processing of Brown Tact stands was performed using a series of sql statements. For each candidate category, an sql statement was created that would select the