WOOD DENSITY VARIATION AND TREE RING DEMARCATION IN GMELINA ARBOREA TREES USING X-RAY DENSITOMETRY
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Universidade Federal de Lavras
2009
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| _version_ | 1876427002049724416 |
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| author | Roger Moya |
| author_facet | Roger Moya |
| contents | WOOD DENSITY VARIATION AND TREE RING DEMARCATION IN GMELINA ARBOREA TREES USING X-RAY DENSITOMETRY Roger Moya Mario Tomazello Filho Agrociencias tree rings wood anatomy Gmelina arborea ray densitometry Due to its relationship with other properties, wood density is the main wood quality parameter. Modern, accurate methods such as X-ray densitometry - are applied to determine the spatial distribution of density in wood sections and to evaluate wood quality. The objectives of this study were to determinate the influence of growing conditions on wood density variation and tree ring demarcation of gmelina trees from fast growing plantations in Costa Rica. The wood density was determined by X-ray densitometry method. Wood samples were cut from gmelina trees and were exposed to low X-rays. The radiographic films were developed and scanned using a 256 gray scale with 1000 dpi resolution and the wood density was determined by CRAD and CERD software. The results showed tree-ring boundaries were distinctly delimited in trees growing in site with rainfall lower than 2510 mm/ year. It was demonstrated that tree age, climatic conditions and management of plantation affects wood density and its variability. The specific effect of variables on wood density was quantified by for multiple regression method. It was determined that tree year explained 25.8% of the total variation of density and 19.9% were caused by climatic condition where the tree growing. Wood density was less affected by the intensity of forest management with 5.9% of total variation. 2009 artículo científico 0104-7760 https://www.redalyc.org/articulo.oa?id=74413015012 en http://www.redalyc.org/revista.oa?id=744 CERNE application/pdf Universidade Federal de Lavras CERNE (Brasil) Num.1 Vol.15 |
| format | Artículo científico |
| id | redalyc_74413015012 |
| institution | Redalyc |
| language | en |
| publishDate | 2009 |
| publisher | Universidade Federal de Lavras |
| spellingShingle | WOOD DENSITY VARIATION AND TREE RING DEMARCATION IN GMELINA ARBOREA TREES USING X-RAY DENSITOMETRY Roger Moya Agrociencias tree rings wood anatomy Gmelina arborea ray densitometry WOOD DENSITY VARIATION AND TREE RING DEMARCATION IN GMELINA ARBOREA TREES USING X-RAY DENSITOMETRY Roger Moya Mario Tomazello Filho Agrociencias tree rings wood anatomy Gmelina arborea ray densitometry Due to its relationship with other properties, wood density is the main wood quality parameter. Modern, accurate methods such as X-ray densitometry - are applied to determine the spatial distribution of density in wood sections and to evaluate wood quality. The objectives of this study were to determinate the influence of growing conditions on wood density variation and tree ring demarcation of gmelina trees from fast growing plantations in Costa Rica. The wood density was determined by X-ray densitometry method. Wood samples were cut from gmelina trees and were exposed to low X-rays. The radiographic films were developed and scanned using a 256 gray scale with 1000 dpi resolution and the wood density was determined by CRAD and CERD software. The results showed tree-ring boundaries were distinctly delimited in trees growing in site with rainfall lower than 2510 mm/ year. It was demonstrated that tree age, climatic conditions and management of plantation affects wood density and its variability. The specific effect of variables on wood density was quantified by for multiple regression method. It was determined that tree year explained 25.8% of the total variation of density and 19.9% were caused by climatic condition where the tree growing. Wood density was less affected by the intensity of forest management with 5.9% of total variation. 2009 artículo científico 0104-7760 https://www.redalyc.org/articulo.oa?id=74413015012 en http://www.redalyc.org/revista.oa?id=744 CERNE application/pdf Universidade Federal de Lavras CERNE (Brasil) Num.1 Vol.15 |
| title | WOOD DENSITY VARIATION AND TREE RING DEMARCATION IN GMELINA ARBOREA TREES USING X-RAY DENSITOMETRY |
| topic | Agrociencias tree rings wood anatomy Gmelina arborea ray densitometry |
| url | https://www.redalyc.org/articulo.oa?id=74413015012 |