Journal of the Architectural Institute of Korea Structure & Construction (대한건축학회논문집:구조계)

Architectural Institute of Korea (대한건축학회)
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Evaluation of Physicochemical Characteristics and Plant Growth in Bio-Artificial Soils with Hydrogels Immobilizing Nitrogen Fixation Bacteria

질소고정균을 흡착한 히드로겔 기반의 바이오 인공토양의 이화학적 특성 및 식물 생장성 평가

  • 황인혁 (경기대 일반대학원 건축공학과) ;
  • 이경호 (경기대 일반대학원 건축공학과) ;
  • 양근혁 (경기대 플랜트.건축공학과) ;
  • 문주현 (지엘기술(주) 기술연구소)
  • Received : 2017.04.03
  • Accepted : 2017.07.26
  • Published : 2017.08.30
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Abstract

This study developed a biological artificial soils to promote the plant growth. The bio-artificial soil is composed of the neutralized particles achieving the fineness of natural soils and hydrogels immobilizing nitrogen fixation bacteria. The particles are obtained from the crush of aerated concrete with dry density not exceeding 450 kg/m3 and then suspended into monophoshpate solution for neutralization. To examine the practical application of the bio-artificial soil, various physicochemical characteristics (soil moisture, pH, cation exchange capacity, electrical conductivity, carbon-to-nitrogen ratio, and total organic content) were measured at immediately before planting and an age of 28 days after planting, and compared with the adequate ranges recommended in the landscape standard specification. The plant growth in the bio-artificial soil was ascertained from the evaluation of the variation of height, width of crown, and coverage in the indian rubber tree, parlour palm, broadleaf liriope, and tiny ardisia. Test results showed that the plant growth in the bio-artificial soil was approximately 13% greater than that measured in the existing artificial soils using perlite. The optimum content of hydrogels containing nitrogen fixation bacteria in the bio-artificial soil depends on the type of plant. Ultimately, the developed bio-artificial soil has an excellent potential for artificial soils in building greening system.

Keywords

Acknowledgement

Supported by : 국토교통부

References

  1. Ayako, N., & Nigel, D. (2010). Drought tolerance in different vegetation types for extensive green roofs: Effects of watering and diversity, Landscape and Urban Planning, 97(4), 318-327. https://doi.org/10.1016/j.landurbplan.2010.07.005
  2. Bandaranayake, W., Qian, Y. L., Parton, W. J., Ojima, D. S., & Follett, R. F. (2003). Estimation of soil organic carbon changes in turfgrass systems using the CENTURY model, Agronomy Journal, 95(3), 558-563. https://doi.org/10.2134/agronj2003.0558
  3. Claire, F., Xing, Q. A., & Hohn, P. R. (2013). Water-retention additives increase plant available water in green roof substrates, Ecological Engineering, 53(6), 112-118.
  4. Hug, K. Y., & Shim, K. K. (2001). Development of artificial soil by advanced materials for the greening of artificial ground, Journal of the Korean Society for Horticultural Science, 42(3), 355-364.
  5. Hwang, I. H. (2016). Development of bio-ultra-lightweight soil for vegetation using aerated concrete and bacteria, Master's thesis, Kyonggi University, Suwon-si, 55-66.
  6. Jo, B. H. (2002). Soil science, Hyangmunsa, Seoul, 112-114.
  7. Kim, D. H. (2014). Development and performance of non-cement porous vegetation concrete, Doctorate thesis, Kongju National University, Kongju-si, 23-34.
  8. Kim, H. J., Kang, S. L., Lee, S. B., Hong, I. K., & Kim, S. C. (1998). A study on swelling of high absorptive resin-polymer blends. Applied Chemistry, 2(2), 596-599.
  9. Kim, S, M., Han, S. W., Jang, H. K., Kim, J. S., & Jeong, M. I. (2015). Characteristics of soil moisture rate for optimal growth conditions on green roof plants, Korean Journal Environ. Ecology, 29(6), 947-951. https://doi.org/10.13047/KJEE.2015.29.6.947
  10. Ko, S. K., Tae, H. S., & Ryu, C. H. (2006). Effect of animal organic soil amendment on growth of korean lawngrass and kentucky bluegrass, Korean. Turfgrass Science, 20(1), 33-40.
  11. Lee, K. H. (2013). Development of mixture proportioning model for low-density high-strength foamed concrete. Kyonggi University, 19-75.
  12. Yang, K. H. (2014). Development of artificial soil aggregates using bio-terra-con with self plant growth conditions and specific gravity below 0.3, Report No. 030403, Department of Plant-Architectural Engineering of Kyonggi University. 25-63.