Abasi Kalo G, 2013. Soil development at various geomorphologic units and surfaces based on some indices in Marand Region. PhD Thesis. Department of Soil Science, Faculty of Agriculture, University of Tabriz, IRAN. (In Persian with English abstract)
Alamdari P, Jafarzadeh AA, Oustan Sh and Toomanian N, 2010. Iron oxide forms and distribution in a transect of Dasht-e- Tabriz soils, Northwest Iran. Food, Agriculture and Environment Journal, 8(3&4): 976-979.
Allen CE, 2005. Physical and chemical characteristics of soil forming on Boulder Tops, Kärkevagge, Sweden. Soil Science Society of America Journal. 69: 148-158.
Anonymous, 2018. Climatic Data. I.r. of Iran Meteorological Organization (IRIMO). Meteorological administration of Ardabil province
Baldock JA and Nelson PL, 2000. Soil organic matter. Pp. 25 -71. In: Malcomner E. Sumner, Handbook of soil science.
Banaei MH, 1998. Soil Moisture and Temperature Regime Map of Iran. Soil and Water Research Institute, Ministry of Agriculture, Iran.
Birkeland PW, 1999. Soils and Geomorphology. 3rd ed, Oxford University Press, New York.
Boye A, and Albrecht A, 2004. Soil erodibility control and soil carbon losses under short-term tree fallows in western Kenya. Bull Réseau Eros 23: 123-143
Brady NC, 1990. The Nature and Properties of Soils, 10nd ed, McMillan Publishing Company.
Buol SW, Hole FD and Mc Crachen RJ, 2003. Soil Genesis and Classification. Iowa State University Press, Ames.
Bybordi M, 1999. Soil Genesis and Classification.8th ed. Tehran University Publications. (In Persian with English abstract)
Chapman HD, 1965. Cation exchange capacity. Pp. 891-901. In: Black CA, (ed). Methods of Soil Analysis, American Society of Agronomy, Madison.
Costantini EAC, Lessovaia S and Vodyanitskii Yu, 2006. Using the analysis of iron and iron oxides in paleosols (TEM,geochemistry and iron forms) for the assessment of present and past pedogenesis. Quaternary International 156–157: 200–211.
Dahlgren RA, Boettinger JL, Huntington GL and Amundson RG, 1997. Soil development along an elevational transect in the western Sierra Nevada, California. Geoderma
Dolui AK and Bera R, 2001. Relation between iron forms and pedogenic processes in some alfisols of Orissa, India. Agrochimica 45(5):161–170.
Gee GW and Bauder JW, 1986. Particle-size Analysis. Pp. 383–411. In: Klute A, (ed). Methods of Soil Analysis. Physical and Mineralogical Methods. Agronomy Monograph 9 (2ed). American Society of Agronomy, Madison, WI.
Griffin TS, 2008. Nitrogen availability. Pp. 613-646. In: Schepers JS, Raun WR (eds). Nitrogen in Agricultural Systems. Agronomy Monograph 49. American Society of Agronomy, CSSA, and SSSA, Madison, WI.
Grytnes JA and Beaman JH, 2006. Elevation species richness patterns for vascular plants on Mount Kinabalu, Borneo. Biogeography 33: 1838–1849.
Hutchins RL, Hill JD and White EH, 1976. The influence of soil and microclimate on vegetation of forested slopes in eastern Kentucky. Soil Sci 121: 234–241.
Jackson ML, 1975. Soil Chemical Analysis-advanced course. University of Wisconsin, College of Agriculture, Department of Soils, Madison, WI
Kämpf N, Scheinost AC and Schulze DG, 1999. Oxide Minerals. Pp. F125 – F168. In: Sumner ME(ed.), Handbook of Soil Science. CRC Press, Boca Raton, FL.
Kittrick JA and Hope EW, 1963. A procedure for particle size separation of soils for x-ray diffraction analysis. Soil Sci 96(5): 319-325.
McKeague JA and Day JH, 1966. Dithionate and oxalate extractable Fe and Al as aids in differentiating various classes of soils Can. Soil Sci 46: 13-23.
Mehra OP and Jackson ML, 1960. Iron oxide removal from soils and clays by a dithionite citrate system with sodium bicarbonate. Clays and Clay Minerals 7: 317-327.
Mousavi MH, Mehdizadeh Shahri H and Ghorbani H, 2009. Mineralogy of soils formed on Aghajary formation in Masjed Soleyman and Burge Khajoo province. Journal Science Islamic Azad University. 77: 151-172. (In Persian with English abstract)
Muller RA and Oberlande TM, 1978. Physical Geography Today. A Portrait of a Planet, Random House, New York.
Nelson DW and Sommers LE, 1982. Total carbon, organic carbon and organic matter. Pp. 539-577. In: Page AL, Miller RH and Keeney DR, Methods of Soil Analysis. Part 2. Chemical and Microbiological Properties.
Quideau SA, 2002. Organic matter accumulation. Pp. 1172-1175. In: Rattan L (2ed), Encyclopedia of Soil Science. University of alberta, Edmonton, Alberta, Canada.
Rahmani S, Ebrahimi A and Davoudian A, 2013. Generating a vegetation map in mountainous region of Sabzkouh using a digital elevation model. Journal of Range and Watershed Management 66(1): 89-109. (In Persian with English abstract)
Rezapour S, 2011. Study of climatic effects on soil genesis and clay mineralogy in the Western Azerbaijan Province. PhD Thesis. Department of Soil Science, Faculty of Agriculture
, University of Tabriz, IRAN. (In Persian with English abstract)
Rezaei H, Jafarzadeh AA, Alijanpour A, Shahbay F and Kamran V, 2015. Effect of slope position on soil properties and types along an elevation gradient of Arasbaran Forest, Iran. International Journal on Advanced Science, Engineering and Information 5(6): 449-456
Richards LA, 1954. Diagnosis and Improvement of Saline and Alkali Soils. Handbook 60 USDA, US Gov. Print. Office, Washington, DC.
Rode AA, 1984. Genesis of Soils and Present-Day Processes of Soil Formation, Moscow, Nauka.
Schulze DG, 2002. An introduction to soil mineralogy. Pp. 1-34. In: Dixon JB and Schulz DG (eds), Soil Mineralogy with Environmental Applications, Soil Science Society of America. Madison, Wisconsin, USA.
Schwartzman U and Taylor RM, 1989. Iron oxides. Pp. 379–438. In: Dixon JB and Weed SB (eds). Minerals in Soil Environments. Soil Science Society of America. Madison, USA.
Seybold CA, Grossman RB and Reinsch TG, 2005. Preicting cation exchange capacity for soil survey using linear models. Soil Science Society of America Journal. 69: 856-86.
Shahbazi F, McBratney A, Malone B, Oustan Sh and Minasny B, 2019. Retrospective monitoring of the spatial variability of crystalline iron in soils of the east shore of Urmia Lake, Iran using remotely sensed data and digital maps. Geoderma 337: 1196-1207.
Soil Survey Staff, 2014. Keys to Soil Taxonomy. U.S. Department of Agriculture, Natural Resources Conservation Service
Torrent J, Schwertmann U and Schulze DG, 1980. Iron oxide mineralogy of some soils of two river terrace sequences in Spain. Geoderma 23: 191-208.
Thompson ML and Ukrainczyk L, 2002. Micas. Pp. 431–461. In: Dixon JB and Schuzele D, (eds). Soil Mineralogy with Environmental Applications. Soil Science Society of America. Madison, Wisconsin, USA.
Vahidi MJ, Jafarzadeh AA, Oustan Sh, Shahbazi F, 2012a. Effect of land use on physical, chemical and mineralogical properties of soils in Southern Ahar. Water and Soil Science-University of Tabriz. 22(1):33-48. (In Persian with English abstract)
Vahidi MJ, Jafarzadeh AA, Oustan SH and Shahbazi F, 2012b. Two physiographic units impact on origin and distribution of extractable iron oxide forms in some soils of southern Ahar. Water and Soil Science-University of Tabriz. 22(2):121-135. (In Persian with English abstract)
Yousefifard M, 2012. Evolution of soils developed on some igneous rocks in semi-arid region in North-east of Iran. PhD Thesis. Department of Soil Science, College of Agriculture, Isfahan University of Technology, Iran