1. AliAhmad Korori, S., M. Khoshnevis, M. Matinzade. 2012. Comprehensive studies of Juniperus species in Iran, publisher: Pooneh, Tehran, Iran, 550.pp (In Persian). 2. Balapour, S. and T. Mohammadov. 2015. Principles, Methods and Applications of Dendrochronology, publisher: Jedikar, Tehran, Iran, 337 pp (In Persian). 3. Bräuning, A. 2001. Climate history of the Tibetan Plateau during the last 1,000 years derived from a network of Juniper chronologies. Dendro-chronologia, 19(1): 127–137. 4. Daghestani, M., M. Zanganeh and M. Taheri. 2017. Investigation on quantitative characteristic and soil properties of Juniperus excelsa M. Bieb stands in Tarom Zanjan. Journal of Forest Research and Development, 3(2): 175-190 (In Persian). 5. Fallah, A., B. Balapour, M. Yekekhani and H. Jalilvand. 2014. Dendrochronological studies of Juniperus polycarpos in Alborz mountains (case study: Shahkuh of Shahrood). Iranian Journal of Wood and Paper Science Research, 29(1) (In Persian). 6. Gardner, A.S. and M. Fisher. 1996. The Distribution and Status of the Mountains Juniper Woodlands of Oman. Journal of Biogeography, 23(6): 791-803. 7. Ghilichnia, H. 1999. Investigating the degree of correlation of vegetation communities with topographical factors (slope and direction) in the Nardin region. Journal of Research and Development, 37-42 (In Persian). 8. Graybill, D.A., S.V. Shiyatov and V. F. Burmistrov. 1992. Recent dendrochronological investigations in Kirghizia. USSR. Lundqua Rep, 34: 123-127. 9. Hassanzad Navroodi, I. and E. ghaderi. 2017. Effects of Altitude on the Growth Characteristics of Lebanon Oak (Quercus libani Olive.) in Kurdistan Province. Ifej, 5(9): 1-7 (in Persian). 10. Knapp, P.A. and P.T. Soule. 2002. Recent Juniperus occidentalis (Western Juniperus) expansion on a protected site in central Oregon. Global Change Biology, 4(3): 347-357. 11. Korner, C. 2007. The use of altitude in ecological research. Trends in Ecology & Evolution, 22(11): 569-574. 12. Lamtarali, Z. 2015. The effect of altitude on some wood anatomical featurs of fraxinus excelsior. MS thesis. University of Tehran (in Persian). 13. Mellati, F. 1996. GeoBotanical Study of Tandoure National Park, MS thesis, Tehran University, 150 pp (In Persian). 14. Momeni Moghaddam, T., S.M. Hosseini, M. Makhdoom and M. Akbarinia. 2006. Qualitative and Quatitative Investigation of Juniper stands in Kop-e-Dagh hillsides, Shirvan. Jurnal of Enviromental Studies, 32(40): 109-116 (in Persian). 15. Naderi Varandi, M., A. Kialashaki, R. Veisy and Sheykheslami. 2018. Effect of Altitude on some Quantitative and Qualitative Characteristics of Populus Deltoids Trees. Ifej, 6(12): 30-38 (in Persian). 16. Oladi, R., K. Pourtahmasi, D. Eckstein and A. Brauning. 2011. Seasonal dynamics of wood formation in Oriental beech (Fagus orientalis Lipsky) along an altitudinal gradient in the Hyrcanian forest, Iran. Trees, 25: 425-433. 17. Pourmajidian, M. and M. Moradi. 2009. Investigation on the site and silvicultural properties of Juniperus excelsa in natural forests of Ilan in Qazvin province. Iranian Journal of Forest and Poplar Research, 17(3): 487-475. 18. Pourtahmasi, K., D. Parsapjouh, A. Bräuning, J. Esper, F.H. Schweingruber. 2007. Climatic analysis of pointer years in tree-ring chronologies from northern Iran and neighbouring high mountain areas. Geo-öko, 28: 27–42. 19. Pourtahmasi, K., L. Poursartip, A. Brauning and D. Parsapjouh. 2009. Comparison between the radial growth of Juniper (Juniperus polycarpos) and Oak (Quercus macranthera) trees in two sides of the Alborz Mountains in Chaharbagh region of Gorgan. Journal of Forest and Wood Products (JFWP), Iranian Journal of Natural Resource, 62(2): 159-169 (In Persian). 20. Ramin, M. 2009. Investigation of Spatial distribution of juniperus Masses in Aminabad Firouzkooh and Its relation to environmental parameters, MS thesis, Gorgan University of Agricultural Sciences and Natural Resources, 222 pp (In Persian). 21. Rastin, M. 2008. Investigation and comparison of the ecological parameters of juniperus excels in the natural central Alborz stands (Chashem of Semnan). MSc thesis. Science and Research Branch, Islamic Azad University Tehran. Iran (In Persian). 22. Ravanbakhsh, H., M. Marvi Mohajer, M. Asadi, M. Zobeiri, V.A. Etemad. 2013. Classification of Juniperus excelsa Communities and Analysis of Vegetation in Relation to Environmental Variables (Case Study: Some Parts of Alborz Mountains, Iran). J. For. Wood Prod, 66(3): 277-292 (in Persian). 23. Razavi, S.A., R. Rahmani and A. Sattarian. 2009. The Investigation of effective factors on biodiversity using MLR (Case Study; Zav research forest). Jurnal of Woof & Forest Science and Technology, 1(1): 33-5 (In Persian). 24. Seim, A., T. Tulyaganov, G. Omurova, L. Nikolyai, E. Botman and H. Linderholm. 2015. Dendroclimatological potential of three juniper species from the Turkestan range, northwestern Pamir-Alay Mountains, Uzbekistan. Trees, 10.1007/s00468-015-1316-y.