Characterisation of the cork growth and quality of cork oak woodlands, North-West Algeria
| Autor: | Belkheir Dehane, Ahmed Chorana, Ramón Santiago Beltrán |
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| Rok vydání: | 2019 |
| Předmět: |
Production area
Ecology Geography Planning and Development 0211 other engineering and technologies Annual average Oak woodlands Production cycle Forestry 02 engineering and technology 010501 environmental sciences Cork engineering.material 01 natural sciences Pollution Slow growth North west engineering Environmental science 021108 energy Computers in Earth Sciences Waste Management and Disposal 0105 earth and related environmental sciences |
| Zdroj: | International Journal of Environmental Studies. 76:507-522 |
| ISSN: | 1029-0400 0020-7233 |
| DOI: | 10.1080/00207233.2019.1594290 |
| Popis: | Cork growth and quality were characterised in eight cork oak stands within the production area of Oran (Oranie, Fr) (North-West, Algeria), based on a field sampling on 75 trees/stand. Cork thickness was on average 26.50 mm, with 44% of the samples in the commercial classes unsuitable for production of stoppers. The annual average cork growth for a production cycle with 10 complete growth years was 2.43 mm. For this region, a production cycle of 12 years is not adequate for raw-material industrial requirements. The aspect of cork is characterised by 11 intrinsic and extrinsic defects. The average density of cork is 256.77 kg/m³ and the porosity, measured by image analysis, 4.6%. The quality of cork according to the Instituto de Promocion de Corcho (IPROCOR) standards categorises the thin cork as the most-valued product, intended for the manufacture of the discs. This is in conformity with the slow growth of cork in this region. |
| Databáze: | OpenAIRE |
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