METHOD OF DETERMINING FOREST PLANTATION RESERVE Russian patent published in 1997 - IPC

FIELD: forestry; evaluation of tree reserve on wide areas of untouched territory. SUBSTANCE: according to method, distant picture of forest tract is obtained, then tract is divided into multiple sections and function of picture brightness of sections is converted into matrix of numerical data of spacious dependence of brightness of elements with 512x512 dimensions. Calculated are characteristics of electrical signal of matrix, mathematical expectation of root-mean-square deviation, envelope of spacious spectrum, and basing on them calculated is reserve of forest plantation of analyzed section M = $$$ , where M - tree reserve on section, cub.m; $$$ - number of trees on section with diameter of crowns $$$; $$$ - diameter of crown of average tree on section calculated according to envelope of spacious spectrum $$$; $$$ - specific weight (amplitude) of corresponding harmonic of spacious spectrum. F - surface area of analyzed section equal to linear dimensions of section in photographic picture multiplied by picture scale. $$$ - completeness of tree plantation, $$$ - diameter of average tree crown calculated according to statistical dependence of forest canopy roughness $$$ = 1.3 $$$; $$$ - cross-sectional area and height of average tree on section calculated according to statistical dependences: $$$; $$$, cm $$$ (M); h $$$. EFFECT: high efficiency. 3 dwg