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Preliminary results of forest structure monitoring in Zagros Vegetation Area | ||
| طبیعت ایران | ||
| Article 5, Volume 8, Issue 6 - Serial Number 43, March and April 2024, Pages 23-30 PDF (619.82 K) | ||
| Document Type: Scientific Views | ||
| DOI: 10.22092/irn.2024.364374.1561 | ||
| Authors | ||
| Seyed Kazem Bordbar* 1; Mehdi poorhashemi2; jalal Henareh3; Farahnaz Rashidi4; Behrouz Fani5; Habibollah Rahimi6; masoumeh khanhasani7; ali najafifar8; manouchehr tahmasebi9; daryoush Mehdifar10; Reza karamian10; hassan Jahanbazy11; yaaghoob Iranmanesh12; Yousof Askari13; siamak negahdarsaber14; Mehrdad Zarafshar15 | ||
| 1Research assistant professor of Fars Agricultural Research and Education Center | ||
| 2Research Professor of Forestry and Pasture Research Institute | ||
| 3Research Assistant Professor of West Azerbaijan Agricultural Research and Training Center | ||
| 4Member of the academic staff of the Research Institute of Forests and Pastures | ||
| 5Research Expert, Forests and Rangelands Research Department, Kurdistan Agricultural and Natural Resources Research and Education Center, AREEO, Sanandaj. Ph.D student of forest management, Urmia University. IRAN. ORCD: 0000-0002-9167-4646 | ||
| 6M.Sc. Forestry/ResearchDivision of Natural Resources/Kermanshah Agricultural and Natural Resources Research and Education Center/Iran | ||
| 7Kermanshah Agricultural and Natural Resources Research Center | ||
| 8Ilam Agricultural Research and Training Center | ||
| 9Faculty member | ||
| 10Lorestan Agriculture and Natural Resources Research and Education Center | ||
| 11Agriculture and natural resources research and education center | ||
| 12Research Associate Professor, Agricultural Research Center Natural resources of Chaharmahal and Bakhtiari province | ||
| 13Yasouj Agriculture and Natural Resources Research Center | ||
| 14Fars Agriculture and Natural Resources Research and Education Center | ||
| 15Fars Agricultural and Natural Resources Research and Education Center | ||
| Abstract | ||
| Measurement and monitoring of structural characteristics of forest stands are essential for studying the dynamics of vegetation, as well as planning forestry interventions such as silvicultural operations and restoration activities. This research, conducted within the framework of the comprehensive Zagros Forest Monitoring and Assessment Program, aimed to evaluate the structure of forest stands in the growth area of Zagros, using a total of 34 one-hectare sample plots designed through a location-based monitoring approach. In each location, a randomly selected square-shaped one-hectare sample plot was established. The results demonstrated that the total number of tree and shrub species ranged from a minimum of 1 to a maximum of 6 species, with a density ranging from 18 to 924 stems ha-1. Regarding the tree species composition, the maximum number of branch base stems was 826, and branch base stems were dominant in most sites. The average diameter of branch shoots ranged from 3 to 69 cm, while tree heights ranged from 3 to 10.8 m. Furthermore, the study revealed that the uniform angle index value ranged from 0.469 to 0.086 across different sample plots, indicating a scattered pattern in all stands. The composite index value ranged from 0.2 to 0.5, suggesting that most stands are in a fair to moderate condition in terms of stability. Monitoring the temporal changes in structural characteristics of the studied stands through repeated measurements in the future phases will provide valuable insights into Zagros Forest stands. | ||
| Keywords | ||
| Density; Diagonal Distribution; Oak; Structure; Zagros | ||
| References | ||
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Hui, G., Zhang, G., Zhao, Z., and Yang, A., 2019. Methods of forest structure research: A review. Current Forestry Reports, 5: 142-154. Panahi, P., Jamzad, Z., Pourmajidian, M.R., Fallah, A., Pourhashemi, M., and Sohrabi, H., 2012. Taxonomic revision of the Quercus brantii complex (Fagaceae) in Iran with emphasis on leaf and pollen micromorphology. Acta Botanica Hungarica, 54(3-4): 355-375. Pommerening, A., 2006. Evaluating structural indices by reversing forest structural analysis. Forest Ecology and Management, 224(3): 266-277. Sagheb Talebi, Kh., Sajedi, T. and Pourhashemi, M., 2014. Forests of Iran: A Treasure from the Past, A Hope for the Future. Springer, 152p. Sitzia, T., Trentanovi, G., Dainese, M., Gobbo, G., Lingua, E. and Sommacal, M., 2012. Stand structure and plant species diversity in managed and abandoned silver fir mature woodlands. Forest Ecology and Management, 270: 232-238. | ||
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