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

  • 제33권8호
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  • Pages.37-45
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  • 2017
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  • 1226-9107(pISSN)
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  • 2384-1788(eISSN)
대한건축학회 (Architectural Institute of Korea)
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질소고정균을 흡착한 히드로겔 기반의 바이오 인공토양의 이화학적 특성 및 식물 생장성 평가

Evaluation of Physicochemical Characteristics and Plant Growth in Bio-Artificial Soils with Hydrogels Immobilizing Nitrogen Fixation Bacteria

  • 황인혁 (경기대 일반대학원 건축공학과) ;
  • 이경호 (경기대 일반대학원 건축공학과) ;
  • 양근혁 (경기대 플랜트.건축공학과) ;
  • 문주현 (지엘기술(주) 기술연구소)
  • 투고 : 2017.04.03
  • 심사 : 2017.07.26
  • 발행 : 2017.08.30
⟨ 이전 논문 다음 논문 ⟩

초록

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.

키워드

과제정보

연구 과제 주관 기관 : 국토교통부

참고문헌

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