Polylepis forests represent a (a far-reaching importance) plant community which implies significant vulnerability states in these forests with regards to constant loss of vegetation coverage to which they are subjected. This study is designed to provide information about physical properties: density...
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| Format: | Article |
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https://revistas.sena.edu.co/index.php/idea/article/view/6887 |
| Summary: | Polylepis forests represent a (a far-reaching importance) plant community which implies significant vulnerability states in these forests with regards to constant loss of vegetation coverage to which they are subjected. This study is designed to provide information about physical properties: density, moisture content and anatomical characterization: seven Polylepis quadrijuga subjects in the macroscopic and microscopic main branches wood from Guanentá Alto Río Fonce, Santander. Specimens of specific dimensions were used (macroscopy: 1cmx3cm; microscopy: 1cmx1cm; physical properties: 5cmx1.5cmx1.5cm), focused on the three wood study plans. Finally, the results reflect that the species has semicircular porosity, solitary pores and in short radial multiples with gums. The parenchyma a sparse vasicentric paratracheal type. It presents simple perforation plates, areolate and opposite circular intervessel pits, with spiral thickening vessels. The rays are uniseriate or with up to 4 radial cells all procumbent, similar to the intervessel-ray pits, with silica contents and oleiferous cells. The fibers are septate with thin cell wall and the presence of circular and areolate pits. The anhydrous and basic density presented values of 0,57 g/cm3 and 0.48 g/cm3 respectively and a CHPSF of 32,90%, maximum CH of 142,35% and a free CH of 109,44%, conferring a medium heavy wood classification. |
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