[1]. Ahanjan, S., Rostami, A., & Jafarzadeh, A. A. (2014). The quantitative and qualitative analysis of Iranian oak trees in Ilam forest (Case study, Ghoghsabze Forest Park). Proceedings of the Second National Conference on Engineering and Management of Agriculture, Environment and Sustainable Natural Resources, https://civilica.com/doc/357918. [in Farsi]

[2]. Arend, M., Kuster, T., Günthardt-Goerg, M.S. & Dobbertin, M. (2011). Provenance-specific growth responses to drought and air warming in three European oak species (Quercus robur, Q. petraea and Q. pubescens), Tree Physiology, 31(3): 287-297.

[3]. Attarod, P., Sadeghi, S.M.M., Sarteshnizi, F.T., Saroyi, S., Abbasian, P., Masihpoor, M., Kordrostami, F., & Dirikvandi, A. (2016). Meteorological parameters and evapotranspiration affecting the Zagrosforests decline in Lorestan province. Iranian Journal of Forest and Range Protection Research, 13(2): 97-112. (in Farsi)

[4]. Azim Nejad, Z., Badehian, Z., & Rezaei Nejad, A. (2021). The relationship between Iranian oak decline (Quercus brantii Lindl.) and some properties of soil and determining the ecophysiological responses of this. Iranian Journal of Forest, 13(3), 221-236.‏ [in Farsi]

[5]. Batos, B., Miletic, Z., Orlovic, S., & Miljkovic, D. (2010). Variability of nutritive macroelements in peduncalate oak (Quercus robur L.) leaves in Serbia. Genetika, 42(3), 435-453.

[6]. Bedard, S. (2016). Introduction to hardwood forest ecology, exploitation, and silviculture in multi-aged silviculture of northern hardwood and mixedwood forests. Proceedings: Field tour in Quebec. Quebec Ministry of Forests, Wildlife, and Parks 38.

[7]. Clatterbuck, W. K., & Kauffman, B. (2006). Managing oak decline. A Regional Peer-Reviewed Technology Extension Publication University of Kentucky’s. Cooperative Extension Publication, 6 p.

[8]. Darabi, H., Gholami, S., & Sayad, E. (2016). Spatial distribution of Oak decline in relation to trees morphologic properties in Zagros forests, Kermanshah. Journal of Wood & Forest Science and Technology, 23(2), 1-21. [in Farsi]

[9]. Dendixsen, D. P. (2012). Causes and effects of Oak decline in an upland Oak-hickory forest of eastern Oklahama. M.Sc. thesis, Oklahoma State University, 118 pp.

[10]. Elliott, K. J., & Swank, W. T. (1994). Impacts of drought on tree mortality and growth in a mixed hardwood forest. Journal of vegetation science, 5(2): 229-236.

[11]. Erfanifard, S. Y., Chenari, A., Dehghani, M., & Amiraslani, F. (2019). Effect of spatial resolution of UAV aerial images on height estimation of wild pistachio (Pistacia atlantica Desf.) trees. Iranian Journal of Forest and Poplar Research, 27(2), 169-181. ‏[in Farsi]

[12]. Fallah, A., Haidari, M. (2018). Investigating the Oak Decline in different Crown-Dimensions in Middle Zagros Forests (Case Study: Ilam). Ecology of Iranian forest, 6(12), 9-17. [in Farsi]

[13]. Fukuda H. (2000). Programmed cell death of tracheary elements as a paradigm in plants. Plant Mol Biol. 44(3), 245-53. doi: 10.1023/a:1026532223173. PMID: 11199386.

[14]. Galiano, L., Martinez-Vilalta, J., Sabaté, S., & Lloret, F. (2012). Determinants of drought effects on crown condition and their relationship with depletion of carbon reserves in a Mediterranean holm oak forest. Tree Physiology, 32(4), 478-489.

[15]. Ghahari, G., Gandomkar, A., Najafpour, B., & Nejabat, M. (2016). Investigating Climatic Factors Affecting the Distribution of Pistachio Forests in Mond Basin. Geography and Environmental Planning, 27(3), 131-162.‏ [in Farsi]

[16]. Guarin, A., & Taylor, A. H. (2005). Drought triggered tree mortality in mixed conifer forests inYosemite National Park, California, USA. Forest Ecology and Management, 218(1): 229- 244.

[17]. Hamzehpour, M., Kia-Daliri, H., & Bordbar, S. K. (2011). Preliminary study of manna oak (Quercus brantii Lindl.) tree decline in Dashte-Barm of Kazeroon, Fars province. Iranian Journal of Forest and Poplar Research, 19(2): 352-363. [in Farsi]

[18]. Hassanzad Navroodi, I. (2017). Effects of some environmental factors on dieback severity of trees in middle Zagros forests of Iran (Case study: strait Daalaab, Ilam province). Journal of Plant Research (Iranian Journal of Biology), 30(3), 644-655.‏ [in Farsi]

[19]. Hosseini, A., Hosseini, S. M., Rahmani, A., & Azadfar, D. (2012). Effect of tree mortality on structure of Brant'soak (Quercus brantii) forests of Ilam province of Iran. Iranian Journal of Forest and Poplar Research, 20(4), 565-577.‏ [in Farsi]

[20]. Hosseinzadeh, J., Aazami, A., & Mohammadpour, M. (2015). Influence of topography on Brant's oak decline in Meleh-Siah forest, Ilam province. Iranian Journal of Forest and Poplar Research, 23(1):190-197. [in Farsi]

[21]. Hosseinzadeh, J., Najafi Far, A., & Tahmasbi, M. (2017). Investigation on principal factors determining stand structure in Oak forests of Zagross. Journal of Plant Research (Iranian Journal of Biology), 29(4), 766-774.‏ [in Farsi]

[22]. Jafari, M., Hosseini, A., Asgari, S., Najafifar A., & Tahmasebi, M. (2021). Evaluation of oak forest drought in physiographic and land use units in Ilam province using Landsat 8 satellite images. Ecology of Iranian forests, 9(18), 1-9. [in Farsi]

[23]. Javanmiripour, P., Parvaneh., R. & Darabi, A. (2021). Studying the structure and economic value of Pistacia atlantica gum in the forests of Gilangarb area. Renewable Natural Resources Research, 12(1), 1-14. [in Farsi]

[24]. Javanmiri Pour, M., Valipour, J., & Hasanzadeh, A. (2022). Study of structural factors and effective motives in causing forest and pasture fires in semi-arid ecosystems of the Zagros Mountain. Journal of Arid Biome, 11(2), 15-27. [in Farsi]

[25]. Javanmiri Pour, M., Valipour, J., Hassanzadeh, A. (2023). Investigating climate changes on the structure and decline of Persian oak (Quercus brantii Lindl.) in Zagros ecosystems (case study: forests of Gilan-e Gharb). Ecology of Iranian forests. 11(21), 12-23. [in Farsi]

[26]. Jazirehi, M. H., Ebrahimi Rostaghi, M. (2013). Silviculture in Zagros. Tehran University Publications. 600 p. [in Farsi]

[27]. Kabrick, J. M., Dey, D. C., Jensen, R. G., & Wallendorf, M. (2008). The role of environmental factors in oak decline and mortality in the Ozark Highlands. Forest Ecology and Management, 255(5-6), 1409–1417.

[28]. Karamian, M., Mirzaei, J. (2020). The Most Important Factors Affecting Persian Oak (Quercus brantii) Decline in Ilam Province. Ecology of Iranian forests, 8(15), 93-103. [in Farsi]

[29]. Khosropour, N., Mirzaee, J., & Doostkami, S. (2014). Factors affecting oak forest dieback Zagros. The National Conference of Iranian Natural Resources with a Focus on Forest Science, pp: 1-10, Sanandaj, Iran. [in Farsi]

[30]. Kukk, M., Sõber, A. (2015). Bud development and shoot morphology in relation to crown location. AoB Plants. 7(2), 19-31. doi: 10.1093/aobpla/plv082.

[31]. Marvi Mohajer, M. R. (2012). Forestry and forest cultivation. Tehran University Press, Third edition. 419 p.

[32]. Mirzaei, M., Bonyad, A., Akhavan, R., & Naqdi, R. (2019). Drought modeling of Iranian oak trees under the influence of physiographic factors in Dalab Ilam forests. Forest research and development, 5(2): 329-342. [in Farsi]

[33]. Moradi, M. J., Kiadaliri, H., Babaie Kafaky, S., & Bakhoda, H. (2021). Zoning of Decline Potential of Persian Oak by TOPSIS Technique and the Factors Affecting it in Ilam Forests. Journal of Environmental Science and Technology, 23(5), 213-227.‏ [in Farsi]

[34]. Negahdar-Saber, M. R., Mortazavi-Jahromi, M., Almansour, H., & Nejabat, M. O. (2003). Investigation on seedling selection of 29 Juglans regia genotypes for further forest plantation trial on degraded forest lands of Kurdistan. Iranian Journal of Forest and Poplar Research, 11(3), 391-410.‏ [in Farsi]

[35]. Palik, B., D'Amato, A., Franklin, J., & Norman, K. (2021).  Ecological Silviculture: Foundations and Applications. Waveland Press, 343.

[36]. Parnian Kalayeh, S., Moradi, M., Sefidi, K., & Basiri, R. (2020). Coarse and fine woody debris and mortality rate of Persian Oak estimation in relation to some environmental factors in Zagros Oak forest (Case study: Tange Alamdar, Behbahan). Iranian Journal of Forest, 11(4), 519-532.‏ [in Farsi]

[37]. Poulos, H. M. (2014). Tree mortality from a short-duration freezing event and global-change-type drought in a Southwestern piñon-juniper woodland, USA. PeerJ, (2): 1-14. doi: 10.7717/peerj.404.

[38]. Shahbazi, K., Heshmati, M., & Saeedifar, Z. (2021). Investigating the effect of climate change on drought and desertification risk in Kermanshah Province. Desert Management, 8(16), 183-200. [in Farsi]

[39]. Shariat, A., Mirzaie Nodoushan, H., Mirza, M., Zare, Z., Keneshloo, H., & Taghavi, F. (2019). An ionome study in Persian oak (Quercus brantii Lindl) to evaluate factors affected oak decline. Iranian Journal of Forest, 11(3), 415-428.‏ (in Farsi)

[40] Stringer, J. W., Kimmerer, T. W., Overstreet, J. C., & Dunn, J. P. (1989). Oak Mortality in Eastern Kentucky. Southern Journal of Applied Forestry, 13(2), 86-91.

[41]. Soheili, F., Heydari, M., Woodward, S., Naji, H. (2023). Adaptive mechansm in Quercus brantii Lindl. Leaves under climate differentiation: morphological and anatomical traits, scientific reports & amp, 5(2): 201-215.

[42]. Tahmasabi, M. (2000). The final report of the study of factors affecting the distribution of wild pistachio in Ilam province. Internal report of the Agricultural and Natural Resources Research Center of Ilam province. 121 pp. [in Farsi]

[43]. Wright, H. E., McAndrews, J. H., & Zeist, W. V. (1967). Modern pollen rain in western Iran, and its relation to plant geography and quaternary vegetational history. Journal of Ecology, 55(2), 415-443.

[44]. Yeganeh, M. (1999). Wild pistachio ecology. The first national seminar of Beneh, Ilam, 21 p. [in Farsi]

[45]. Zahedipour, H., Fattahi, M., Mirdavoodi Akhavan, H. R., Godarzi, G., & Azdoo, Z. (2005). Distribution of different species of Pistachio in Markazi Province of Iran. Iranian Journal of Forest and Poplar Research, 13(1), 78-33. [in Farsi]

[46]. Zubiri, M. (2018). Statistics in the forest (tree and forest measurement). Press of Tehran University, 4th edition. 424 p.