Surveying morphological characteristics of unmanaged mixed stand in Kheiroud forest

Document Type : Scientific article

Authors

1 Ph.D. Candidate of Forestry, Faculty of Natural Resources, Urmia University, Urmia, I.R. Iran

2 Professor, Department of Forestry and Economics, Faculty of Natural Resources, University of Tehran, Tehran, I.R. Iran

Abstract

In this study some characteristics of an unmanaged natural stand were measured and surveyed in two sampling periods as long as eight years in Kheiroud forest. Results showed that about 9.7 percent of all trees was fallen, 6.5 percent of trees were dried, 2.6 percent of all trees were embowed and crown of 1.6 percent of trees was broken during the period. Also the most fallen trees were occurred in low diameter categories (10 and 20 cm). Slenderness coefficient studies in the first period suggest the possibility of falling the trees in the future. Results showed that there is a negative significant correlation between height of crown and total height in first period and a positive correlation between height of trunk and total height. These relations in second period are inversed. In the surveying of relationships between trunk with branches and without branches in all specie, it is determined that trunk without branches height in relation to trunk with branches is more obvious. The number of fallen and dried trees in the stand and the situation of the trees in diameters classes imply on needing of stand thinning. Otherwise, continuing of the stand destroying and increasing number of unhealthy trees will not be avoided.

Keywords

References

- 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): 165-180. (In Persian)
 -Amani, M. & M. Hasani, 1997. Survey typolozhy of native beech stands in seedling uneven aged and seedling even aged plans of Sangdeh forests, Pajouhesh Va Sazandgi, 37:4-27. (In Persian)
- Burschel, P. & J. Huss, 1987. Grundriss des Waldbaus. Verlag Paul Parey, Humburg und Berlin, 352 p.
- Etemad, V., M. Namiranian, M. Zobeiri, B. Majnounian & Gh. Moradi, 2013. Qualitative and Quantitative Variation of Forest Stands after one Period of Forest Management Plan (Case study: Namkhane DistrictKheyrud Forest), Journal of forest and wood product, 66(3): 243-256. (In Persian)
- Ghomi Avili, A., A. Mataji, M. Hoseini & Gh. Jalali, 2006. Evaluation of Changes trend in Quantitative Characteristics of two managed Forest associations, Iranian Journal of forest and poplar research, 14(1): 49-58. (In Persian)
- Gorji Bahri, Y., R. Faraji, S. Kiadaliri, E. Abbassi & B. Gharib, 2009. The effect of thinning on growth and wood production of Caucasian alder (Alnus subcordata) plantation in Nowshahr region, Iranian Journal of Forest, 1(1): 43-55. (In Persian)
- Habashi, H., S.M. Hoseini, J. Mohammadi & R. Rahmani, 2007. Determine the distribution and structure of mixed beech in Shast Kola Gorgan forest, Iranian Journal of Forest and Poplar Research, 15(1):55-63. (In Persian)
- Hasanzad Navrodi, I., N. Seyyedi & H.R. Seifolahian, 2009. Evaluation of quantitative and qualitative forest stands changes during a Period of forest management Plan (case study: Janbe Sara district-Guilan), Iranian Journal of Forest, 1(4): 301-311. (In Persian)
- Hasanzad Navroudi, I., 2006. An investigation of the quantitative and qualitative characteristics of Alnus Subcordata in three areas of different altitudes in Asalem (Guilan province), Iranian Journal of Natural Resources, 59(1): 115-125. (In Persian)
- Kolahi, M., V. Etemad, M. Namiranian, Gh. Zahedi & A. Khosrojerdi, 2006. An Investigation of the Quantitative and Qualitative Characteristics of Torogh Forest Park, Iranian Journal of Natural Resources, 59(3): 623-637. (In Persian)
- Marvie Mohadjer, M.R. & M. Moradi, 2011. Morphological and quantitative characteristics of mature beech trees (Fagus orientalis Lipsky) in two regions of Sistan in Guilan and Kheiroud in Mazandaran, Iranian Journal of Forest and Poplar Research, 19(3): 300-311. (In Persian)
- Marvie Mohadjer, M.R., 1975. Ueber Qualitaets merkmale der Buche. Doctoral dissertation Nr. 5306. Aku- Fotodruck, ETH, Zuerich. 106 p.
- Mohammad nejad kiasari, Sh. & R. Rahmani, 2001. Effect of dead trees on the frequency of natural regeneration in a beech-hornbeam forest (Jamaleddinkola, Mazandaran), Iranian Journal of Natural Recources, 54(2): 143-151. (In Persian)
- Namiranian, M., 2000. Study of important measures characteristics of Beech species in Gorazbon part of Kheyrud forest, Iranian Journal of Natural Resources, 53(1): 87-96. (In Persian)
- Namiranian, M., 2004. An Investigation of the Ash species inventory at Gorazbon District in the Educational and Research Forests of Kheirood kenar, Iranian Journal of Natural Resources, 57(4): 689-702. (In Persian)
- Nyland, R.D., 1996. Silviculture: Concepts and Applications, the McGraw-Hill Companies, New York, 633 p.
- Oliveria, A.M., 1987. The H/D ratio in maritime pine (Pinus pinaster) stands. In: Ek, A.R., S.R. Shifley & T.E. Burk (Eds.). Proceedings of the IUFRO conference Forest growth modeling and prediction, Minneapolis, Minn. International Union of Forest Research Organizations, Vienna. pp. 881-888.
- Morin, R.S., J. Steinman & K.C. Randolph, 2012. Utility of tree crown condition indicators to direct tree survival using remeasured forest inventory and analysis data, Forest Inventory and Analysis Symposium, 210-215.
- Schomaker, M.E., S.J. Zarnoch, W.A. Bechtold, D.J. Latelle, W.G. Burkman & S.M. Cox, 2007. Crown-condition classification: a guide to data collection and analysis. United States Department of Agriculture, 92 p.
- Sefidi, K., M.R. Mohadjer, M. Zobeiri & V. Etemad, 2007. Investigation on dead trees effects on natural regeneration of oriental beech and hornbeam in a mixed beech forest, Iranian Journal of Forest and Poplar Research, 15(4): 365-373. (In Persian)
- Sheikhulislami, A. & T. Ahmadi, 2007. Caucasian walnut (Petrocarya fraxinifolia (Lam.)Spach.) study in forests of Mashelak (Nowshahr), Pajouhesh & Sazandegi, 75: 92-102. (In Persian)
- Wang, Y., J.S. Titus & M.V. Lemay, 1998. Relationships between tree slenderness coefficients and tree or stand characteristics for major species in boreal mixed wood forests, Can Journal of Forest Research, 28(8):1171-1183.
- Zobeyri, M., 2005. Forest inventory (measuring of trees and forest). Tehran University Press, Tehran, 402 p. (In Persian)
- Moradi, M., M.R. Marvie Mohadjer, M. Zobeiri & A. Omidi, 2010. Morphological characteristics and health of beech trees by diameter more than one meter (case study, Guilan province), Iranian Journal of Forest and Poplar Research, 18(1): 46-58. (In Persian)

Files

Share

How to cite

Statistics