Impact assessment of local users of pollarded stands on Northern Zagros forests

Document Type : Scientific article

Authors

1 Department of Forestry, Faculty of Natural Resources, University of Kurdistan, Sanandaj, Iran

2 Social-Ecological interactions in Agricultural Systems, University of Goettingen and University of Kassel, Germany.

Abstract

The aim of this study was to evaluate the performance of local users on pollarded oak stands. For this purpose, biometric indices (total height, trunk height, crown height, crown area and crown height to total height ratio) of Quercus libani Oliv. trees were used. Three pollarded stands with similar physiographic conditions and the same pollarded age (four years after pollarding) under the traditional management of three different local users were selected. In the selected pollarded stands, using 100% inventory, collar diameter for all trees (collar diameter ≥ 5 cm) were measured. For the Quercus libani trees, in addition to collar diameter, total height, trunk height and two small and large crown diameters in the two perpendicular directions were measured. The results indicate a significant difference in terms of biometric indices (i.e. total height, crown height, crown area and crown height to total height ratio), which confirms the different behavior of local foresters in performing pollarding and the possibility of using these biometric indices to evaluate the performance of local users.

Keywords


- Abbasi, L., Z. Shakeri, N. Shabanian & M. Bahari, 2015. Pollarding effects on Lebanon oak (Quercus libani Oliv.) leaf properties in Baneh forests, Iranian Journal of Forest, 7(1): 87-97. (In Persian)
- Akhavan, R. & M. Namiranian, 2007. Slenderness coefficient of five major tree species in the Hyrcanian forests of Iran, Iranian Journal of Forest and Poplar Research, 15(2): 87-96. (In Persian)
- Alemu, B., G. Animut & A. Tolera, 2013. Millettia Ferruginea: An Endemic Legume Tree as Forage for Ruminants in Southern and Northwestern Ethiopia, Livestock Research for Rural Development 25(3).
- Anonymous, 2005. Multipurpose forest management plan: emphasis on organizing and management of pollarding in Armardeh, West of Iran. Center of Research and Development on Forest Management in Northern Zagros, University of Kurdistan, Baneh, 70 p. (In Persian)
- Berhe, D. H. & A. A Tanga, 2013. Nutritional Evaluation of Ficus Thonningii Blume Leaves as Ruminant Livestock Feed in the Ahferom District of Tigray, Ethiopia, African Journal of Range & Forage Science, 30(3): 149-54.
- Eichhorn, M. P., P. Paris, F. Herzog, L. D.  Incoll, F. Liagre, K. Mantzanas, M. Mayus, G. Moreno, V.P. Papanastasis, D.J. Pilbeam, A. Pisanelli & C. Dupraz. 2006. Silvoarable Systems in Europe - Past, Present and Future Prospects. Agroforestry Systems, 67 (1): 29-50.
- F.R.W.O., 2015. No Title. http://frw.org.ir/00/En/StaticPages/Page.aspx?tid=13237. (In Persian)
- Falster, D. S. & M. Westoby, 2003. Plant height and evolutionary games, Trends in Ecology & Evolution, 18(7): 337-343.
- Fattahi, M., 1994. Study Quercus Zagros forests and great factors destruction. Research Institute of Forest and Rangelands Press, Tehran, 63p. (In Persian)
- Fattahi, M., 1997. Spreading Quercus libani species in Kurdistan Province. Research Institute of Forest and Rangelands Press, Tehran, number review 178, 73p. (In - Persian)
- Franzel, S., S. Carsan, B. Lukuyu, J. Sinja & C. Wambugu, 2014. Fodder trees for improving livestock productivity and smallholder livelihoods in Africa, Current Opinion in Environmental Sustainability 6: 98-103.
- Geta, T., L. Nigatu & G. Animut 2014. Evaluation of potential yield and chemical composition of selected indigenous multi-purpose fodder trees in three districts of Wolayta Zone, Southern Ethiopia, World Applied Sciences Journal, 31: 399-405.
- Ghahramany L., M. Salehyan & H. Ghazanfari, 2012. Comparison of forest structure utilized by traditional method with less-disturbed forest stands in northern Zagros (case study: Baneh, western Iran), Forestry Bulletin “Herald of Moscow State Forest University, 84(1): 52-57. (In Russian)
- Ghahramany, L., H. Ghazanfari & P. Ftehi, 2009. Investigation of structure of oak forests under local management in northernZagros, Proceedings of 3rd national conference on forest, university of Tehran, Karaj. (In Persian)
- Ghahramany, L., H. Ghazanfari, P. Fatehi & A. Valipour, 2018. Structure of pollarded oak forest in relation to aspect in Northern Zagros, Iran, Agroforestry Systems, 92(6): 1567-1577.
- Ghahramany, L., Z. Shakeri, E. Ghalavand & H. Ghazanfari, 2017. Does diameter increment of Lebanon oak trees (Quercus Libani Oliv.) affected by pollarding in Northern Zagros, Iran? Agroforestry systems, 91(4): 741-748.
- Ghalavand, E., 2014. Study and comparison of biometrical indices of Lebanon Oak (Quercus Libani Oliv.) in traditionally managed (pollarded) and less-disturbed stands, M.Sc. Thesis. University of Kurdistan. Sanandaj, Iran, 70p. (In Persian)
- Ghazanfari, H., M. Namiranian, H. Sobhani, & M. R. Marvi Mohajer, 2004. Traditional forest management and its application to encourage public participation for sustainable forest management in the northern Zagros Mountains of Kurdistan Province, Iran, Scandinavian Journal of Forest Research, 19(sup004): 65-71.
- Hosseini, S.A., A. Valipour & Z. Shakeri, 2018. Comparison of the size structure of prevalent silvopastoral management in northern Zagros forests, Iranian Journal of forest, 9(4): 481-498. (In Persian)
- Jazirei, M.H. & M. Ebrahimi rastaghi, 2003. Silviculture in Zagros. University of Tehran Press, Tehran. 560 p. (In Persian)
- Khedri, L., L. Ghahramany, H. Ghazanfari, & F. Pulido, 2017. A quantitative study of pollarding process in silvopastoral systems of Northern Zagros, Iran, Forest Systems, 26(3): 70-78.
- Namiranian, 2000. A study on dimentional characters of Beech species in Gorazbon district, Kheytudkenar forest, Iranian Journal of Natural Resources, 53(1): 87-95. (In Persian)
- Peri, P. L., H. A. Bahamonde, M. V. Lencinas, V. Gargaglione, R. Soler, S. Ormaechea & G. M. Pastur. 2016. A Review of Silvopastoral Systems in Native Forests of Nothofagus Antarctica in Southern Patagonia, Argentina, Agroforestry Systems, 90(6): 933-60.
- Ranjbar, A., L. Ghahramany & M. Pourhashemi, 2012. Impact assessment of pollarding on biometrical indices of Lebanon oak (Quercus Libani Oliv.) in Belake Forests, baneh, Iranian journal of forest and poplar research, 20(4): 578-594. (In Persian)
- Rawat, Y.S. & C. S. Everson, 2013. Availability and use of Willow species in representative cold desert areas of Northwestern Himalaya, India, Journal of Mountain Science, 10(3): 472-81.
- Read, H., 2006. A brief review of pollards and pollarding in Europe, in: 1er Colloque Europeen Sur Led Trognes, Vendôme, France, pp. 26-28.
- Rostami Jalilian, A., L. Ghahramany, H. Ghazanfari, & Z. Shakeri. 2016. Response of Gall Oak (Quercus Infectoria Oliv.) to Pollarding in Northern Zagros, Iranian Journal of Forest and Poplar Research, 24(4): 633-45. (In Persian)
- Shahbedini S., L. Ghahramany, F. Pulido, Sh. Khosravi & G. Moreno. 2018. Estimating leaf biomass of pollarded lebanon oak in open silvopastoral systems using allometric equations, Trees - Structure and Function. 32 (1): 99-108.
- Shakeri, Z., 2006. Silvicultural and ecological effect of Galazani on oak trees in Baneh forests (Kurdistan, NW Iran). M.Sc. Thesis. University of Tehran, Karaj, Iran, 59 p. (In Persian)
- Shakeri, Z., M. R. Marvi Mohajer, M. Namiranian & V. Etemad, 2009. Comparison of seedling and coppice regeneration in pruned and undisturbed oak forests of Northern Zagros (case study: Baneh, Kurdistan province), Iranian Journal of Forest and Poplar Research, 17(1): 73-84. (In Persian)
- Smith, J., B. Pearce & M. Wolfe, 2012. A European perspective for developing modern multifunctional agroforestry systems for sustainable intensification, Renew, Renewable Agriculture and Food Systems, 27(4): 323-332
- Thakur, P. S. & A. Thakur, 2007. Canopy management in agroforetsry-options and strategies, In Agroforestry Systems and Practices, eds. S. Puri and P. Panwar. New Delhi, India: New India Publishing Agency, 533-45.
- Valipour, A., T. Plieninger, Z. Shakeri, H. Ghazanfari, M. Namiranian, & M. J. Lexer, 2014. Traditional silvopastoral management and its effects on forest stand structure in northern Zagros Iran, Forest Ecology and Management, 327: 221-230.