The project continues on previous work completed by Lignum in the identification of growth patterns for uneven-aged stands, and in the development of a stand structure classification system. The project had two primary tasks. The first task entailed the assignment of a stand structure and species group classification to all vegetated tree polygons within the IFPA. To assign the stand structure to unsampled polygons, a predictive model was developed using a regression tree approach. The second task objectives were to develop generalized growth type projections for each VRI polygon. The second task required two types of growth projections: stand level projections using the Ministry of Forests VDYP and TIPSY stand level models and the VRI inventory attributes, and; tree level growth projections using the proprietary model FPS, and the RING model developed for Lignum, whose output was subsequently grouped into the stand structure classes.
D.R. Systems Inc.
D.R. Systems Inc., Bowering, Michael; Reimer, Don R.; Lignum Ltd.. 2003. Assignment of stand structures and the development of growth patterns for IDF types: final report methods, procedures and results. Forest Investment Account. Forest Investment Account Report