In plantation forestry, inventory data must always be reliable and accurate, but still cost-effective. We solved this problem by creating a customized version of the TRESTIMA® Forest Measurement System specifically for plantations, where the measurement process is fully formalized, but still extremely easy.
TRESTIMA® For Plantations generates sample plots in the forest to be measured, the number of which depends on the area of the forest.
The sample plots are displayed in the field staff mobile app, making them easy to navigate.
A single image is taken in each plot in a predetermined direction. The application controls the shooting direction with a compass displayed on the view finder.
Once each plot is described, the measurement is complete.
The system calculates the basal area and the diameter distribution of the trees from the images. The heights for each tree are obtained from local growth models, which can be populated in advance from the customer’s historical data or by entering about 10 height & diameter pairs in different diameter classes for each forest stand. TRESTIMA® uses the Morgan-Mercer-Flodin (MMF) equation as an adapter for growth models.
End result is very accurate (<5% error in 95% of cases) report of all key variables (volume, DBH, number of trees) in the forest.