Features of mixed birch-spruce stands interpretation on the example of the northern taiga region of the European part of the Russian Federation

Abstract

The paper presents the structural features of birch forests in terms of diameter and the ratio of the average height of birch and spruce in mixed birch-spruce stands. In the work, the method of automated identification of crowns of individual trees was used for the subsequent analysis of the features of decoding birch-spruce stands. The result of the presented technique is a set of contours of tree crowns in a forest, obtained automatically. Works on the segmentation of aerial photographs obtained with the use of UAVs and the isolation of individual crowns, determination by the spectral characteristics of the species of each tree are presented quite rarely, but this direction is quite promising. The established deciphering features can be useful to specialists who decipher these forest stands. The article presents materials of trial plots and analysis of comparison with tabular materials, a calculation algorithm for determining the average height and diameter according to the obtained dependencies of decryption and taxation indicators.