EFFECT OF COORDINATE BIRCH AT AVTOMOBILE ROADS ON THE AVERAGE TIME OF VEGETATION AND MAXIMUM WIDTH OF ACCOUNTING LEAVES
In order to improve the environmental quality assessment of the surrounding growing birch area in the summer of 2018, the width of ten accounting leaves of ten birch trees hanging in the city of Yoshkar-Ola was measured. Distances from the edge of the road to the center of the birches were measured, as well as the height of the crown zone at each birch 1.5-2.0 m from the prevailing winds (approximately North-West). On each birch tree on the side of the crown there was a zone with a diameter of about 0.5 m, where ten accounting leaves were allocated, white threads with tags were tied to their roots, on which the numbers of accounting leaves were indicated. The reduced coordinate system was calculated as follows. The cell phone measured the geographical coordinates of the trunk axis (in degrees, minutes and seconds), which were given to the conditional Northern latitude and Eastern longitude. These influencing factors were obtained regularities of changes in time of the growing season from the first of may and the average maximum width of leaves account. The factor analysis of six influencing variables and two dependent indicators is carried out. Formulas and graphs are given. It was found that the influence of the distance from the road on the maximum width of the leaves has a correlation coefficient 0.7574, and the influence of the reduced East longitude on the same biometric parameter 0.7514. The average maximum width of the birch leaves can be a great indicator of pollution of the roadside area. To identify wave patterns, it is necessary to take more than twenty birches in different places.