USING OF PHOTOMETRIC ANALYSIS TO DETERMINE THE QUANTITATIVE INDICATORS OF NORTHERN KAZAKHSTAN MATURE FORESTS

An important condition for improving the efficiency of forest resources management and forest exploitation is the availability of reliable information about the forest resource. The use of GIS technologies to solve various problems of economic activity significantly increases the efficiency of the process. The results of automatic processing of remote sensing data by photometric method are presented in the present work. The basis of the proposed method is the photometric analysis of terrain images obtained by unmanned aerial vehicles, with a detail of at least twenty centimeters per pixel. To determine the number of mature trees per unit area in the processing of photographic material the green channel is taken as a basis and the central upper part of the crown is determined by saturation index.
Comparison of the processing results with the data obtained by direct measurements shows their high correlation. Thus, both the advantage of using remote sensing methods in conjunction with GIS technologies and their high productivity and economic efficiency are revealed.

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