1.Angelini, M.E., Heuvelink, G.B.M., Kempen, B., and Morrás, H.J.M. 2016. Mapping the soils of an Argentine Pampas region using structural equation modelling. Geoderma. 281: 102-118.
2.Basayigit, L., and Senol, S. 2008. Comparison of soil maps with different scales and details belonging to the same area. Soil and water res. 1: 31-39.
3.Brady, N.C., and Weil, R.R. 1999. Chapter 1. The nature and properties of soils. 13th edition. Pp: 1-59.
4.Bui, E.N., Loughhead, A., and Corner, R. 1999. Extracting soil –landscape rules from previous soil surveys. Australian Journal of Soil Research. 37: 495-508.
5.Bui, E.N., and Moran, C.J. 2001. Disaggregation of polygons of surficial geology and soil maps using spatial modeling and legacy data. Geoderma. 103: 79-94.
6.Burt, R. 2004. Soil survey laboratory methods manual. NRCS, USDA, Soil survey investigation report. No: 42, Version 4.0, 736p.
7.Cambardella, C.A., Moorman, T.B., Novak, J.M., Parkin, T.B., Karlen, D.L., Turco, R.F., and Konopka, A.E. 1994. Field-scale variability of soils properties in central Iowa soils. Soil Science Society of America Journal. 58: 1501-1511.
8.Camera, C., Zomeni, Z., Noller, J.S., Zissimos, A.M., Christoforou, I.C., and Bruggeman, A. 2017. A high resolution map of soil types and physical properties for Cyprus: A digital soil mapping optimization. Geoderma. 286: 35-49.
9.Dobos, E., Micheli, E., Baumgardner, M.F., Biehl, L., and Helt, T. 2000. Use of combined digital elevation model and satellite radiometric data for regional soil mapping. Geoderma. 97: 367-391.
10.Dornik, A., Dragut, L., and Urdea, P. 2018. Classification of soil types using geographic-based image analysis and random forests. Pedosphere. 28: 913-925.
11.Du, C., Linker, R., and Shaviv, A. 2008. Identification of agricultural soils using mid-infrared photoacoustic spectroscopy. Geoderma. 143: 85-90.
12.Elnaggar, A.A. 2007. Development of predictive mapping techniques for soil survey and salinity mapping. (Doctoral dissertation, Oregon state University, Corvallis, Oregan), 185p.
13.Gabler, R.E., Petersen, J.F., and Trapasso, L.M. 2006. Soils and soil development. Essentials of physical geography, 8th Edition. Pp: 330-360.
14.Gee, G.W., and Bauder, J.W. 1986. Particle-size analysis, in: Klute A. (Eds.), Methods of Soil Analysis, Part 1. Physical and Mineralogical Methods,2nd ed. Agronomy. 9: 383-411.
15.Grunwald, S. 2009. Multi-criteria characterization of recent digital soil mapping and modelling approaches. Geoderma. 152: 3-4. 195-207.
16.Häring, T., Dietz, E., Osenstetter, S., Koschitzki, T., and Schröder, B. 2012. Spatial disaggregation of complex soil map units: Adecision-tree based approach in Bavarian forest soils. Geoderma. 185-186: 37-47.
17.Hengl, T., Toomanian, N., Reuter, H., and Malakouti, M.J. 2007. Methods to interpolate soil categorical variables from profile observations: Lessons from Iran. Geoderma. 140: 417-427.
18.Heuvelink, G.B.M., and Webster, R. 2001. Modelling soil variation:past, present and future. Geoderma.100: 269-301.
19.Horácek, M., Samec, P., and Minár, J. 2018. The mapping of soil taxonomic units via fuzzy clustering- A case study from the outer Carpathians, Czechia. Geoderma. 326: 111-122.
20.Juan, P., Mateu, J., Jordan, M.M., Mataix-Solera, J., Meléndez-Pastor,I., and Navarro-Pedreno J. 2011. Geostatistical methods to identify and map spatial variations of soil salinity. Journal of Geochemical Exploration, 108: 62-72.
21.Khitrov, N.B. 2012. The development of detailed soil maps on the basis of interpolation of data on soil properties. Eurasian Soil Science. 45: 918-928.
22.Kunze, G.W., and Dixon, J.B. 1986. Methods of soil analysis, Part 1. Physical and Mineralogical Methods. Am. Soc. of Agron. Pp: 91-100.
23.Lee, K.S., Lee, G.B., and Tyler,E.J. 1988. Determination of soil characteristics from thematic mapper data of a cropped organic-inorganic soil landscape. Soil Science Society of American Journal. 52: 1100-1104.
24.Liu, X.M., Xu, J.M., Zhang, M.K., Huang, J.H., Shi, J.C., and Yu, X.F. 2004. Application of geostatistics and GIS technique to characterize spatial variabilities of bioavailable micronutrients in paddy soils. Environmental Geology, 46: 189-194.
25.McBratney, A.B., Mendonça Santos, M.L., and Minasny, B. 2003. On digital soil mapping. Geoderma. 117: 3-52.
26.Minasny, B., and McBratney, A.B. 2007. Incorporating taxonomic distance into spatial prediction and digital mapping of soil classes. Geoderma.142: 285-293.
27.Mirakzehi, Kh., Shahriari, A., Pahlavan Rad, M.R., and Bameri, A. 2017. Application of random forest method for predicting soil lasses in low relief lands (Case study: Hirmand County). J. of Water and Soil Conservation, 24: 1. 67-84.
28.Moran, C.J., and Bui, E. 2002. Spatial data mining for enhanced soil map modeling. International Journal of Geographical Information Science.16: 533-549.
29.Odgers, N.P., McBratney, A.B., and Minasny, B. 2011. Bottom-up digital soil mapping. I. Soil layer classes. Geoderma. 163: 38-44.
30.Reza, S.K., Nayak, D.C., Chattopadhyay, T., Mukhopadhyay, S., Singh, S.K.,and Srinivasan, R. 2016. Spatial distribution of soil physical properties of alluvial soils: a geostatistical approach. Archives of Agronomy and Soil Science. 62: 972-981.
31.Schoeneberger, P.J., and Wysocki,D.A. 2017. Geomorphic Description System, Version 5.0. Natural Resources Conservation Service, National Soil Survey Center, Lincoin, NE, 208p.
32.Shahriari, A., Khormali, F., Karimi, A.R., Lehndorff, E., and Tazikeh, H. 2015. Palaeopedological study of loess-palaeosol sequences along a climosequence in northern Iran. J. of Water and Soil Conservation, 22: 2. 21-39.
33.Shrestha, D.P., Moonjun, R., and Farshad, A. 2016. Adequacy of soil information resulting from geopedology- based predictive soil mapping for assessing land degradation: Case studies in Thailand, In: Zink, J.A., Metternicht, G., Bocco, G., and Del Valle, E.F. Geopedology: An Integration of Geomorphology and Pedology for Soil and Landscape Studies, Pp: 457-471.
34.Siqueira, D.S., Marques, JrJ., Pereira, G.T., Teixeira, D.B., Vasconcelos, V., Carvalho Junior, O.A., and Martins, E.S. 2015. Detailed mapping unit design based on soil-landscape relationand spatial variability of magnetic susceptibility and soil color. Catena. 135: 149-162.
35.Skidmore, A.K., Watford, F., Luckananurug, P., and Ryan, P.J. 1996. An operational GIS expert system for mapping forest soils. Photogrammetric Engineering and Remote Sensing,62: 501-511.
36.Soil Survey Staff. 2014. Keys toSoil Taxonomy, 11th ed. U.S. Department of Agriculture, Natural Recourses Conservation Service.
37.Sommer, M., Wehrhan, M., Zipprich, M., Castell, Z.W., Weller, U., Castell, W., Ehrich, S., Tandler, B., and Selige, T. 2003. Hierarchical data fusion for mapping soil units at field scale. Geoderma. 112: 179-196.
38.Sparks, D.L., Page, A.L., Helmke, P.A., Leoppert, R.H., Soltanpour, P.N., Tabatabai, M.A., Johnston, G.T., and Summer, M.E. 1996. Method of soil analysis. Siol Science Society of American Journal, Madison, Wisconsin.
39.Thomas, A.L., King, D., Dambrine, E., Couturier, A., and Roque, A. 1999. Predicting soil classes with parameters derived from relief geologic materialsin a sandstone region of the Vosges Mountains (Northeastern France). Geoderma. 90: 291-305.
40.Vaysse. K., and Lagacherie. P. 2017. Using quantile regression forest to estimate uncertainty of digital soil mapping products. Geoderma. 291: 55-64.
41.Vincent, S., Lamercier, B., Berthier,L., and Walter, C. 2018. Spatial disaggregation of complex soil map units at the regional scale based onsoil-landscape relationships. Geoderma, Pp: 130-142.
42.Zeraatpisheh, M., Ayoubi, Sh., Jafari, A., and Finke, P. 2017. Comparing the efficiency of digital and conventional soil mapping to predict soil typesin a semi-arid region in Iran. Geomorphology. 285: 186-204.
43.Zinck, J.A., Metternicht, G., Bocco Verdinelli, G.H.R., and Del Valle, H.F. 2016. Geopedology, An Integration of Geomorphology and Pedology for Soil and Landscape Studies. Springer Cham Heidelberg New York Dordrecht London. 550p.