Characterization of Clay Minerals in Ranch Pasture

  • Received : 2015.12.15
  • Accepted : 2016.02.25
  • Published : 2016.02.29


This study deals with the distribution of the clay minerals separated from clay fractions of ranch pastures in Korea and their chemical and mineralogical properties. Crystalline phases of the clay minerals were identified by powder X-ray diffraction (XRD) pattern and FT-IR spectra, and their relative chemical compositions were also analyzed by X-ray flourescence spectrometry (XRF). Primary minerals consisted mainly of quartz and mica and chlorite and kaolinite along with a trace of swelling micas were identified as secondary clay minerals. However, the relative content of these clay minerals was different with the locations, which led to significant effects on physical and chemical properties of soils like inorganic elemental composition. In particular, $SiO_2$ content was higher in Gochang ranch pasture than in other ranch pasture. Infrared (IR) spectra did not indicate any significant differences in organic functional groups among the locations. This study clearly showed that ranch pastures had different relative content of clay minerals and chemical properties depending on the location and consequently that those properties are worthy to be taken into account for soil amendment.


Supported by : RDA


  1. Choi, J. 1986. The surface properties of major clayminerals produced in Korea. Korean J. Soil Sci. Fert. 19(3):195-203.
  2. Hur, S.N. and D. Leung. 1997. Studies on the improvement and management of hill pasture. Korean Grassl. Sci. 17(4):329-344.
  3. Hwang, J.Y. and M.I. Jang. 1994. Characteristics and genesis of the clay materials in wearhering products from the Guweol mountain area, Pusan. Korean J. Soil Sci. Fert. 27(3):158-167.
  4. Jeong, J.H., C.S. Kim, K.S. Goo, C.H. Lee, H.G. Won, and J.G. Byun. 2003. Physico-chemical properties of Korean forest soils by parent rocks. J. Korean For. Soc. 92(3):254-262.
  5. Jung, Y.K. 1992. Soil characteristics and fertilizer applications in Korean hilly pasture. Korean Grassl. Sci. 12:83-93.
  6. Jung, Y.K. and Y.S. Rim. 2001. Effects of the application of different fertilizers on the forage productivity and quality on newly reclaimed hilly soil. Korean Grassl. Sci. 21(1):7-14.
  7. Kim, W.T., Y.H. Yoon, Y.H. Cho, H.K. Kang, B.J. Park, K.J. Shin, Y.J. Eo, T.S. Yoon, K.E. Jang, and M.Y. Kwak. 2012. Comparison of physicochemical properties of topsoil from forest development and non-development area. J. Environ. Sci. 21(11):1389-1394.
  8. Lee, H.S., B.K. Hur, K.H. Yoon, E.R. Son, K.T. Um, D.C. Noh, and Y.H. Kim. 1989. Studies on the soil properties and fertilizer recommendation for grass lands to be estabilished. Korean J. Soil Sci. Fert. 22(4):301-306.
  9. Lee, S.H. and K.M. Lee. 2008. The Distribution of Natural Disaster in Mountainous Region of Gangwon-do. J. Korean Geog. Soc. 43:843-857.
  10. Lee, S. K. 1997. Annual fresh weight yield of oversowing grassland and vegetational succession of abandoned grassland in Wonju area. Korean J. Soil Sci. Fert. 17(3):257-264.
  11. Mavris, C., M. Plotze, M. Mirabella, D. Giaccai, and M. Egli, 2011. Clay mineral evolution along a soil chronosequence in an Alpine proglacial area. Geoderma 165:106-117.
  12. Min, T.K., K.M. Hwang, and M.K. Kang. 2000. Chemical and mineralogical properties on the Ulsan marine deposited clay. J. Korean Geotech Soc. 16(6):51-58.
  13. NIAST. 2000. Methods of soil and plant analysis. National Institute of Agricultural science and Technology, RDA, Suwon, Korea.
  14. Tak, H.M., S.H. Kim, and I. Son. 2013. A study on distributions and spatial properties of geomorphological mountain area. J. Korean Geog. Soc. 48:1-18.
  15. Um, M.H., H.S. Lim, and T.S. Kim. 1992. Genesis and characteristics of the soil clay minerals derived from major parent rocks in Korea. Korean J. Soil Sci. Fert. 25(3):202-212.
  16. Yitagesu, F.A., F. Van der Meer, H. Van der Werff, and C. Hecker. 2011. Spectral characteristics of clay minerals in the $2.5-14{\mu}m$ wavelength region. Appl. Clay Sci. 53:581-591.
  17. Zhang, Y.S., Y.K. Sonn, C.W. Park, B.K. Hyun, Y.H. Moon, and K.C. Song. 2010. Clay activity and physico-chemical properties of Korean soils with different clay minerals. Korean J. Soil Sci. Fert. 39(5):245-252.
  18. Zhang, Y.S., Y.K. Sonn, S.J. Jung, G.J. Lee, M.S. Kim, S.K. Kim, J.Y. Lee, and I.H. Pyun. 2006. Clay mineral composition of the soils derived from residuum and colluvium. Korean J. Soil Sci. Fert. 43(6):837-843.

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