Walnut long-lived trees of Ardabil province | ||
| طبیعت ایران | ||
| Article 7, Volume 5, Issue 4 - Serial Number 23, September and October 2020, Pages 59-69 PDF (1.18 M) | ||
| Document Type: Scientific Letters | ||
| DOI: 10.22092/irn.2020.122533 | ||
| Authors | ||
| Younes Rostami kia* 1; Mostafa Khoshnevis2; Allahverdi Mohammadi3; Dolat Mohammadi3; Hamid Mohammadi3 | ||
| 1Assistant Prof., Forests and Rangelands Research Department, Ardabil Agricul tural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Ardabil, Iran. | ||
| 2Senior Research Expert, Research institute of Forests and Rangelands, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran. | ||
| 3Research Expert, Forests and Rangelands Research Department, Ardabil Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization, AREEO, Ardabil, Iran | ||
| Abstract | ||
| Walnut (Juglans regia) is native to Iran and is being planted in most provinces of the country. This study was performed to identify and record the walnut long-lived trees in the Ardabil province. By collecting information, using local resources, and visiting different parts of the province, 15 walnut long-lived trees were investigated. According to the results, the average diameter at breast height was 131.6 cm, the total height was 11.55 m, and the crown cover was 133.49 m2. The long-lived trees were generally distributed in an altitude range between 1038-1722 m.a.s.l. All of these trees have been planted in the province's old gardens to exploit its product. Regarding growth characteristics and age of long-live trees, while fully protecting these trees, it is possible to produce and propagate their seedlings by creating genetic reserves. | ||
| References | ||
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- Spies, T.A., and Franklin, J.F. 1996. The Diversity and Maintained of Old-growth Forest. Oxford University Press, New York, 778 p. - Spies, T.A. 2004. Ecological concepts and diversity of old-growth forests. Journal of Forestry, 102: 14-20. - Van Pelt, R. 2007. Identifying mature and old forests in western Washington. Department of Natural Resources, Olympia, W.A., Washington. | ||
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