Comparison of tree measurement methods in terms of instruments, measurable parameters, operators required, application type, approximate costs, and estimated time per plot (8 to 44 trees).
| Method | Instruments | Measurable parameters | Number of operators | Application type | Estimated time | Approximate costs |
|---|---|---|---|---|---|---|
| Traditional | Diameter caliper, Ipsometer, Metric tape, GPS | DBH, tree height, crown height, crown width, stem inclination, tree position | 1 (2) | Tree inventory | 30 min – 60 min | 1,600€ – 2,000€ 80€ – 150€ 20€ – 50€ 300€ – 400€ |
| Spatial | Fied-Map station (Antelope model) | Georeferenced tree and crown position | 2 | Tree and canopy spatialization | 20 min – 40 min | 9,000€ |
| Smartphone | iPhone 12 Pro, Apps | DBH, tree height, crown height, crown width, tree position, stem volume, surface and inclination, photos | 1 | Tree inventory, LAI, 3D model | 30 min – 60 min | From 1,189€ + app cost |