Research output: Contribution to journal › Article › peer-review
Experimental evidence for logarithmic fractal structure of botanical trees. / Grigoriev, S. V.; Shnyrkov, O. D.; Pustovoit, P. M.; Iashina, E. G.; Pshenichnyi, K. A.
In: Physical Review E, Vol. 105, No. 4, 044412, 29.04.2022.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Experimental evidence for logarithmic fractal structure of botanical trees
AU - Grigoriev, S. V.
AU - Shnyrkov, O. D.
AU - Pustovoit, P. M.
AU - Iashina, E. G.
AU - Pshenichnyi, K. A.
N1 - Publisher Copyright: © 2022 American Physical Society.
PY - 2022/4/29
Y1 - 2022/4/29
N2 - The area-preserving rule for botanical trees by Leonardo da Vinci is discussed in terms of a very specific fractal structure, a logarithmic fractal. We use a method of the numerical Fourier analysis to distinguish the logarithmic fractal properties of the two-dimensional objects and apply it to study the branching system of real trees through its projection on the two-dimensional space, i.e., using their photographs. For different species of trees (birch and oak) we observe the Q-2 decay of the spectral intensity characterizing the branching structure that is associated with the logarithmic fractal structure in two-dimensional space. The experiments dealing with the side view of the tree should complement the area preserving Leonardo's rule with one applying to the product of diameter d and length l of the k branches: dili=kdi+1li+1. If both rules are valid, then the branch's length of the next generation is k times shorter than previous one: li=kli+1. Moreover, the volume (mass) of all branches of the next generation is a factor of di/di+1 smaller than previous one. We conclude that a tree as a three-dimensional object is not a logarithmic fractal, although its projection onto a two-dimensional plane is. Consequently, the life of a tree flows according to the laws of conservation of area in two-dimensional space, as if the tree were a two-dimensional object.
AB - The area-preserving rule for botanical trees by Leonardo da Vinci is discussed in terms of a very specific fractal structure, a logarithmic fractal. We use a method of the numerical Fourier analysis to distinguish the logarithmic fractal properties of the two-dimensional objects and apply it to study the branching system of real trees through its projection on the two-dimensional space, i.e., using their photographs. For different species of trees (birch and oak) we observe the Q-2 decay of the spectral intensity characterizing the branching structure that is associated with the logarithmic fractal structure in two-dimensional space. The experiments dealing with the side view of the tree should complement the area preserving Leonardo's rule with one applying to the product of diameter d and length l of the k branches: dili=kdi+1li+1. If both rules are valid, then the branch's length of the next generation is k times shorter than previous one: li=kli+1. Moreover, the volume (mass) of all branches of the next generation is a factor of di/di+1 smaller than previous one. We conclude that a tree as a three-dimensional object is not a logarithmic fractal, although its projection onto a two-dimensional plane is. Consequently, the life of a tree flows according to the laws of conservation of area in two-dimensional space, as if the tree were a two-dimensional object.
UR - http://www.scopus.com/inward/record.url?scp=85129693398&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/18fdf1c4-2652-3f3f-a2c3-ce801c9081f9/
U2 - 10.1103/physreve.105.044412
DO - 10.1103/physreve.105.044412
M3 - Article
C2 - 35590611
AN - SCOPUS:85129693398
VL - 105
JO - Physical Review E
JF - Physical Review E
SN - 1539-3755
IS - 4
M1 - 044412
ER -
ID: 98510439