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scientists combine the readings from the laser on the ground with a laser reading from a plane flying over the same stretch of woodland. the vegetation reflects the light towards its source that echo is used to construct a three dimensional model of the forest that has information about the height of trees and amount of wood in the measured area. and his colleague félix moore s dog say the system is more effective than conventional forest inventory methods. with a laser we can cover large regions in a comprehensive way we can t do that with inventories they re only made up of samples from spot check locations in some cases that causes errors because we have to extrapolate the data. is a forest engineer he s collected data before with the help of large scale laser scans. this fall there clearly

Laser readingPlane flyingFÃ lix mooreForest inventory methodsLaser scansForest engineer