Comparing cork quality from Hafir-Zarieffet mountain forest (Tlemcen, Algeria) vs. Tagus basin Montado (Benavente, Portugal)
| Autor: | Inês Barbosa, Rachid Tarik Bouhraoua, Augusta Costa, Amina Ghalem |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
mediterranean basin Quercus suber Cork engineering.material Structural basin lenticular channels 010603 evolutionary biology 01 natural sciences Mediterranean Basin quercus suber l image analysis stepwise discriminant analysis Mountain forest lcsh:QH301-705.5 biology Stepwise discriminant analysis General Engineering Forestry biology.organism_classification 010601 ecology cork oak Geography cork porosity lcsh:Biology (General) engineering |
| Zdroj: | Cogent Biology, Vol 2, Iss 1 (2016) |
| ISSN: | 2331-2025 |
| Popis: | In the southwestern Mediterranean Basin, cork oaks (Quercus suber L.) are periodically harvested for their cork. This natural product is valued by its homogeneity which heightens the importance of characterizing cork tissue discontinuities, or cork pores. Cork porosity profile in natural cork planks has been reported to be affected by forest management practices but, so far, has been scarcely addressed. We characterize the cork porosity profile in two contrasting cork oak woodland; at a mountain forest, in Western Algeria (absence of forest management) and at a peneplain “montado,” in southern Portugal (intensively managed toward the optimization of cork production). Image analysis techniques were applied on transverse sections of more than 40 cork samples from both woodland, and a stepwise discriminant analysis was used to discriminate between the cork pore features data-sets. Cork porosity profiles were similar between regions but; in the cork samples from Algeria, cork pores were having higher values for linear dimensions of pores (length and perimeter) and contrasting shape values (roundness) which depreciate cork quality, when compared to the cork samples from Portugal. However, improved woodland management strategies at Algeria should ensure adequate cork homogeneity and suitability for more valuable cork products. |
| Databáze: | OpenAIRE |
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