Open AccessMechanical resistance of Quercus robur L. at the environmental boundary of the species distribution in the steppe
Author(s) -
Nikolay Kharchenko,
В. Н. Калаев,
Владимир Олегович Корниенко
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/875/1/012049
Subject(s) - quercus robur , resistance (ecology) , trunk , ridge , botany , biology , forestry , environmental science , horticulture , ecology , geography , paleontology
The paper studies the mechanical resistance of old-age pedunculate oak trees which grow at the environmental boundary of the species distribution in the steppe. The trees of the studied species growing in the south of the East European Plain (Donetsk Ridge) can be about 200 years old and still be viable (good condition) and have a high mechanical resistance (critical mass (m cr )=10 5 kg, and flexural stiffness=9.8·10 7 N·m 2 ) even under unfavourable environmental conditions. A strong dependence of the morphometric parameter of the ratio was established between the tree trunk diameter and its height on the parameters of the trunk bending stiffness, its critical mass, and the relative resistance to bending. The obtained results of statistical analysis can be used to monitor oak forests and scattered trees of Quercus robur L. in order to single out plants with low mechanical resistance with the help of the d/l parameter which serves as a morphometric marker of the tree resistance.