Mechanical and ecophysiological significance of the form of a young Acer rufinerve tree: vertical gradient in branch mechanical properties (Record no. 42752)

MARC details
000 -LEADER
fixed length control field 02473nam a2200193Ia 4500
003 - CONTROL NUMBER IDENTIFIER
control field MX-MdCICY
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20250625124720.0
040 ## - CATALOGING SOURCE
Transcribing agency CICY
090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN)
Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) B-8448
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 250602s9999 xx |||||s2 |||| ||und|d
245 10 - TITLE STATEMENT
Title Mechanical and ecophysiological significance of the form of a young Acer rufinerve tree: vertical gradient in branch mechanical properties
490 0# - SERIES STATEMENT
Volume/sequential designation Tree Physiology, 26(12), p.1549-1558, 2006
520 3# - SUMMARY, ETC.
Summary, etc. Most tree biomechanics models assume uniformity of mechanical properties within a tree, and only a few studies have focused on differences in mechanical status among branches. We examined mechanical properties of 49 branches of two 10-year-old trees of Acer rufinerve Sieb. et Zucc. For each branch, bending moment due to its own fresh mass, elastic modulus, section modulus and flexural stiffness were obtained. Elastic modulus of the branch was correlated with the density and thickness of the fiber cell wall and decreased with crown depth, indicating that branches at lower positions were more elastic than branches at upper positions. Compared to lower branches, upper branches were less inclined, possessed thicker growth rings, more long shoots and were subject to smaller stresses. The leaf arrangement in the upper branches might be effective in transmitting more light to the lower branches. In contrast, the lower branches were more inclined toward the horizontal and subject to greater stresses than the upper branches. Lower branch inclinations were attributed to smaller dry matter investment in diameter growth. Upper and lower branch inclinations were slightly greater and smaller, respectively, than those predicted by beam theory. The alleviation in inclination of the lower branches is probably caused by negative gravitropic responses such as tension wood formation or upward shoot elongation, or both. The horizontal display of leaves in the lower branches would be effective in light interception. The reduction in cost of the lower branches can be adaptive because they have a shorter life expectancy than the upper branches. The results showed that an adaptive tree form is realized by a vertical gradient in branch mechanical properties.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Sone, K.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Noguchi, K.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Terashima, I.
856 40 - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier <a href="https://drive.google.com/file/d/1KBCANdqfJbxpD4-lLJlEn-MrwwE2_7lZ/view?usp=drivesdk">https://drive.google.com/file/d/1KBCANdqfJbxpD4-lLJlEn-MrwwE2_7lZ/view?usp=drivesdk</a>
Public note Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Source of classification or shelving scheme Clasificación local
Koha item type Documentos solicitados
Holdings
Lost status Source of classification or shelving scheme Damaged status Not for loan Collection Home library Current library Shelving location Date acquired Total checkouts Full call number Date last seen Price effective from Koha item type
  Clasificación local     Ref1 CICY CICY Documento préstamo interbibliotecario 25.06.2025   B-8448 25.06.2025 25.06.2025 Documentos solicitados