XYLEM TEMPERATURE OF SCOTS PINE TREES

The study was carried out in pine stands of the North taiga region of the Arkhangelsk region. The purpose of the study was to determine the xylem temperature of Scots pine trees and calculate the optimal sample size. The air temperature was measured using a metometer MES-200, the xylem temperature of the trees was determined by a portable digital multimeter MY-64 at 5 points of the trunk at a height from 0 m to 2 m. It is shown that the side of the light does not affect the temperature of the xylem. It was found that the xylem temperature is less than the air temperature. It was determined that the optimal sample size for measuring xylem temperature is from 8 to 11 trees.