Korean Journal of Soil Science and Fertilizer (한국토양비료학회지)

Korean Society of Soil Science and Fertilizer (한국토양비료학회)
권호 표지
DOI QR코드

DOI QR Code

Capillary Characteristics of Water and Cations in Multi-layered Reclaimed Soil with Macroporous Subsurface Layer Utilizing Coal Bottom Ash

  • Received : 2014.11.03
  • Accepted : 2014.12.12
  • Published : 2014.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

Serious problems in reclaimed land agriculture are high soil salinity and poor vertical drainage, so desalinization in these soils is very difficult. Also, although desalinization is accomplished in reclaimed top soils, before long, soils are resalinized according to capillary rise of salts from the subsurface soils. To resolve these problems, multi-layered soil columns with subsurface layer of macroporous medium utilizing coal bottom ash (CBA) were constructed and the effects of blocked resalinization of these soils were investigated. In this experiment soil samples were collected from Munpo series (coarse-loamy, nonacid, mixed, mesic, typic Fluvaquents). The soil texture was silt loam and the EC was $33.9dS\;m^{-1}$. As for groundwater seawater was used and groundwater level of 1 cm from the bottom was maintained. The overall rate of capillary rise was $2.38cm\;hr^{-1}$ in soil 60 cm column, $0.25cm\;hr^{-1}$ in topsoil (30 cm) + CBA (5 cm) + subsurface soil (10 cm) column and $0.08cm\;hr^{-1}$ in topsoil (30 cm) + CBA (10 cm) + subsurface soil (10 cm) column. In multi-layered soil columns with CBA 20, 30 cm layer, wetting front due to capillary rise could not be seen in top soil layer. After 70 days capillary rise experiment water soluble Na+ accumulated in top soil of soil columns with CBA 20, 30 cm was diminished by 92.8, 96.5% respectively in comparison with Na+ accumulated in top soil of soil 60 cm column because CBA layer cut off capillary rise of salts from the subsurface soil. From these results we could conclude that the macroporous layer utilizing CBA placed at subsurface layer cut off capillary rise of solutes from subsurface soil, resulting in lowered level of salinity in top soil and this method can be more effective in newly reclaimed saline soil.

Keywords

References

  1. Akudago, J. A., M. Nishigaki, L. P. Chegbeleh, M. Komatsu, and M. A. Alim. 2009. Capillary cut design for soil-groundwater salinity control. Journal of the Faculty of Environmental Science and Technology. Okayama University. 14:17-22.
  2. Alperovitch, N., I. Shainberg, R. Keren, and M. J. Singer. 1985. Effect of clay mineralogy and aluminum and iron oxides on the hydraulic conductivity of clay-sand mixtures. Clay and Clay minerals. 33:443-450. https://doi.org/10.1346/CCMN.1985.0330511
  3. Bolan, N. S., J. K. Syers, M. A. Adey, and M. E. Sumner. 1996. Origin of the effect of pH on the saturated hydraulic conductivity of non-sodic soils. Commun. Soil Sci. Plant Anal. 27:2265-2278. https://doi.org/10.1080/00103629609369702
  4. Ch, Y. K., I. S. J, and K. T. Um. 1992. Effects of decreasing methods of salt content in root zone on soil properties and crop growth at the reclaimed tidal soil. Korean J. Soil Sci. Fert. 25:127-132.
  5. Lee, J. Y., H. Y. Choi, and J. E. Yang. 2010. Physicochemical Effects of Bottom Ash on the Turfgrass Growth Media of Sandy Topsoil in Golf Course. Kor. Turfgrass Sci. 24:199-204.
  6. Lee, J. K., T. H. Koh, K. M. Sa, S. J. Lee, and T. Y. Lee. 2010. Evaluation of Leaching Characteristics of Bottom Ash and Waste Tire. Journal of KSEE. 32:682-689.
  7. Hillel. D. 1998. Environmental Soil Physics. p. 510-511. Academic Press. San Diego. USA.
  8. Hong, C. H., C. H. Lee, H. Lee, Y. B. Lee, and P. J. Kim. 2006. Evaluating Possibility of Heavy Metal Accumulation by Fly Ash Application in Rice Paddy Soils. Korean Journal of Environmental Agriculture. 25:331-338. https://doi.org/10.5338/KJEA.2006.25.4.331
  9. Hopkins, W. G., and N. P. A. Huner. 2004. Introduction to plant physiology. 3rd ed. John Wiley & Sons, Inc.
  10. Jang, Y. C., S. W. Lee, and J. M. Lim. 2009. Physico-chemical characteristics and environmental assessment of coal bottom ash from coal-fired power plant for beneficial use. Journal of Korea solid wastes engineering society. 26: 680-688.
  11. Kim, J. G., M. S. Han, S. B. Lee, and H. J. Han. 1988. Effects of sand mulching on forage production in newly reclaimed tidal lands. I. Desalinisation of the soils and crop performance. J. Korean Crassl. Sci. 8:55-60.
  12. Kim, J. G., and H. J. Han. 1990. Effects of sand mulching on forage production in newly reclaimed tidal lands. II. Studies on growth, Dry matter accumulation and nutrient quality of selected forage crops grown on saline soils. J. Korean Crassl. Sci. 10:77-83.
  13. Kim, S. S., S. Y. Lee, G. H. Han, and E. S. Im. 1997. Underdrainage effects on salinity and growth of rice in Gyehwa reclaimed saline land. Korean J. Crop Sci. 42:61-67.
  14. Jo, I. S., Y. K. Jo, and K. T. Um. 1993. Red Earth addition and sand mulching at the newly reclaimed tidal soil and plant growth. RDA J. Agri. Sci. 35:270-275.
  15. Koo, J. W., and C. H. Eun. 1988. Changes of hydraulic conductivity during desalinization of reclaimed tidelands. Journal of the Korean Society of Agricultural Engineers. 30:85-93
  16. Koo, J. W., K. W. Han, J. G. Son, and D. W. Lee. 1992. Determining Irrigation Requirements and water management practices for normal growth of dry crops in reclaimed tidelands. 34:80-96.
  17. NIAST. 1988. Methods of soil chemical analysis. National institute of Agricultural Science and Technology, RDA, Suwon, Korea.
  18. Rooney, D. J., K. W. Brown, and J. C. Thomas. 1998. The effectiveness of capillary barriers to hydraulically isolate salt contaminated soils. Water, Air, and Soil Pollution. 104:403-411. https://doi.org/10.1023/A:1004966807950
  19. Topark, N. B., H. Michihiro, S. Suiichi, and P. Surasak. 2002. Cutting-off zone technique for crop production in salt affected area of Northeast Thailand. 17th WCSS. Symposium no. 33, Paper no. 164.

Cited by

  1. Effects of Straw Mulching on Soil Physicochemical Properties in Saemangeum Reclaimed Land vol.49, pp.1, 2016, https://doi.org/10.7745/KJSSF.2016.49.1.012