CENTRE ON THE PROBLEMS OF ECOLOGY AND PRODUCTIVITY OF FORESTS
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CENTRE ON THE PROBLEMS OF ECOLOGY AND PRODUCTIVITY OF FORESTS |
RUSSIAN ACADEMY OF SCIENCES |
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M.V. Netsvetov The influence of leaf mass, area, and aerodynamics on sycamore stem oscillations // Forest Science (Lesovedenie). 2012. No 1. С.56-64. The influence of leaf mass and wood elasticity on the frequency and damping of tree and sapling trees of Acer pseudoplatanus L. was studied. The natural frequency and damping ratio of the oscillations of sycamore saplings are related to the leaf mass and its allocation along the stem. The stem vibration frequency decreases with increasing the leaf mass resulted in the greater mass of the whole plant. However, the influence of foliage on the damping ratio consists not only in the increase of the plant mass. Leaves serve as an aerodynamic damper, and the leaves located in the upper part of the plants have the maximal damping effect. The leave located closer to the base of the plants play the role of an additional mass extinguishing the plant vibration. Wind, sycamore, foliage, oscillations, damping.. |
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