MPB Projections Clause Samples

MPB Projections. Since 1999, the MoFR has been projecting the spread of MPB throughout the province and recalibrating the projections each year with the forest health overview. The projections have been made using raster based stochastic modelling in ▇▇▇▇▇. The output provided from the MoFR are two 400m X 400m (16 ha) grids for each year projected. The first grid has the percent of the pine affected by MPB and the second has the percent of the stand that is pine. The percent of each grid that is affected is calculated by multiplying the percent pine MPB affected by the percent pine. To provide consistency in reporting the percent of the stand affected has been classified using the forest health overview (FHO) classification system. This classification system is shown in Table 25. Trace T 0 – 1 % Light L 1 – 10 % Moderate M 10 -30 % Severe S 30 – 50 % Very Severe V > 50 % One important variance from the FHO classification system is that the MoFR MPB projections are reported showing the accumulative impact of MPB instead of the annual impact. This was done because the MPB projections rarely showed annual impacts beyond the trace and low classes and because the overall impact is more important for making strategic level decisions.