Some Properties of Astronium graveolens Wood Along the Stem
ABSTRACT We investigated the axial variation of specific gravity, shear parallel to the grain and anatomical features of Astronium graveolens wood and related these properties to the anatomy along the stem. We felled five 20-year-old trees and cut discs from four different stem heights, including st...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Universidade Federal Rural do Rio de Janeiro
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| Series: | Floresta e Ambiente |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2179-80872016000100142&lng=en&tlng=en |
| _version_ | 1818195034032308224 |
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| author | Eduardo Luiz Longui Cássia Christine Schmidt Gondo Israel Luiz de Lima Miguel Luiz Menezes Freitas Sandra Monteiro Borges Florsheim Antonio Carlos Scatena Zanatto José Nivaldo Garcia |
| author_facet | Eduardo Luiz Longui Cássia Christine Schmidt Gondo Israel Luiz de Lima Miguel Luiz Menezes Freitas Sandra Monteiro Borges Florsheim Antonio Carlos Scatena Zanatto José Nivaldo Garcia |
| author_sort | Eduardo Luiz Longui |
| collection | DOAJ |
| description | ABSTRACT We investigated the axial variation of specific gravity, shear parallel to the grain and anatomical features of Astronium graveolens wood and related these properties to the anatomy along the stem. We felled five 20-year-old trees and cut discs from four different stem heights, including stem base, 1 meter, 2 meters and 3 meters, for a total of 20 discs, and studied wood samples near the bark and at the base of trunk. Axial variations found appear to provide a balance between mechanical strength of the wood at stem base by the higher density and higher shear by the increase in ray frequency that contributes to locking the vertical cells and growth rings, thus preventing the stem from easily breaking when bent. For hydraulic conductivity, vessels with smaller diameter and frequency at the stem base help prevent the occurrence of embolisms that would reduce water flow along the main stem. |
| first_indexed | 2024-12-12T01:11:46Z |
| format | Article |
| id | doaj.art-d3fedf3fbc8a411b9b4610a91c0a2a02 |
| institution | Directory Open Access Journal |
| issn | 2179-8087 |
| language | English |
| last_indexed | 2024-12-12T01:11:46Z |
| publisher | Universidade Federal Rural do Rio de Janeiro |
| record_format | Article |
| series | Floresta e Ambiente |
| spelling | doaj.art-d3fedf3fbc8a411b9b4610a91c0a2a022022-12-22T00:43:27ZengUniversidade Federal Rural do Rio de JaneiroFloresta e Ambiente2179-808723114214910.1590/2179-8087.109714S2179-80872016000100142Some Properties of Astronium graveolens Wood Along the StemEduardo Luiz LonguiCássia Christine Schmidt GondoIsrael Luiz de LimaMiguel Luiz Menezes FreitasSandra Monteiro Borges FlorsheimAntonio Carlos Scatena ZanattoJosé Nivaldo GarciaABSTRACT We investigated the axial variation of specific gravity, shear parallel to the grain and anatomical features of Astronium graveolens wood and related these properties to the anatomy along the stem. We felled five 20-year-old trees and cut discs from four different stem heights, including stem base, 1 meter, 2 meters and 3 meters, for a total of 20 discs, and studied wood samples near the bark and at the base of trunk. Axial variations found appear to provide a balance between mechanical strength of the wood at stem base by the higher density and higher shear by the increase in ray frequency that contributes to locking the vertical cells and growth rings, thus preventing the stem from easily breaking when bent. For hydraulic conductivity, vessels with smaller diameter and frequency at the stem base help prevent the occurrence of embolisms that would reduce water flow along the main stem.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2179-80872016000100142&lng=en&tlng=enhydraulic conductivitystrength of woodguaritáaxial variation |
| spellingShingle | Eduardo Luiz Longui Cássia Christine Schmidt Gondo Israel Luiz de Lima Miguel Luiz Menezes Freitas Sandra Monteiro Borges Florsheim Antonio Carlos Scatena Zanatto José Nivaldo Garcia Some Properties of Astronium graveolens Wood Along the Stem Floresta e Ambiente hydraulic conductivity strength of wood guaritá axial variation |
| title | Some Properties of Astronium graveolens Wood Along the Stem |
| title_full | Some Properties of Astronium graveolens Wood Along the Stem |
| title_fullStr | Some Properties of Astronium graveolens Wood Along the Stem |
| title_full_unstemmed | Some Properties of Astronium graveolens Wood Along the Stem |
| title_short | Some Properties of Astronium graveolens Wood Along the Stem |
| title_sort | some properties of astronium graveolens wood along the stem |
| topic | hydraulic conductivity strength of wood guaritá axial variation |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2179-80872016000100142&lng=en&tlng=en |
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