METHOD FOR DETERMINING PRODUCTIVITY OF PLANTATIONS Russian patent published in 2024 - IPC A01G23/00 

FIELD: forestry.

SUBSTANCE: invention relates to forestry and can be used in monitoring forests by aerospace equipment. Performing the tree canopy probing from the drone with a digital video camera and a spectrometer with measurements referenced by coordinates by means of the GLONASS global positioning system, calculation of structural characteristics of tree canopy by software image processing: average frequency F_av of spatial spectrum; crown diameter D_av=1/F_av of the model tree of the site; relief area S_r of tree canopy; tree stand completeness through ratio of geometrical area of plot S_geometr to relief area S_r, measurement of characteristics of efficiency of conversion of light flux into biomass: colour of tree canopy according to spectrograms of spectral brightness coefficient (SBC) with calculation of normalized differential vegetation index NDVI; ground-based measurements by means of a fluorimeter of the coefficient (C) of absorption of the incident light flux by workpieces of shoots of crowns, determination of productivity [P%] from measurements on a time lag of several years (ΔT=T₂-T₁) through the ratio: .

EFFECT: higher accuracy, efficiency and statistical stability of estimating margin gain.

1 cl, 6 dwg