Asian Journal of Turfgrass Science (아시안잔디학회지)

Turfgrass Society of Korea (한국잔디학회)
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Effects of Rubber Chips from Used Tires on Spots Turf Ground as Soil Conditioner

Rubber chip의 경기장 지반 물리성 개선과 잔디 생육에 미치는 효과

  • 김인철 (연세대학교 생물자원공학과) ;
  • 이정호 (연세대학교 생물자원공학과) ;
  • 주영규 (연세대학교 생물자원공학과) ;
  • Published : 2002.03.01
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Abstract

This study was conducted to investigated the effects of rubber chips from used tires on sports turf ground as soil conditioner to improve soil physical properties. The release of heavy metal ions was detected to check the soil contamination by incorporation of recycled rubber chips with topsoil. The effects of the chips were also evaluated as topdressing material to improve surface resilience. The rate of rubber chips showed a positive relationship with soil temperature increasement. Incorporation of rubber chips increased soil temperature on surface at 2.5 cm-depth. The rates of rubber chip showed a negative relationship with ground cover rate of turfgrass in early growth season. However, after 20 weeks, treatment of 10% rubber chips at 2.5 cm-depth showed a prominent cover rate of 70% which was not significantly different with untreated control. Incorporation of rubber chips within topsoil seemed to reduce soil compaction, but the effects was not prominent on physical properties. Rubber chips did not affect chemical properties and heavy metal contamination to soil environment. Rubber chips improved resilience of the compacted ground surface as topdressing material, this effect was prominent when aerification practise was preceded.

경직된 지반의 물리성 개선재로서 rubber chip의 토양 내 혼합 또는 배토는 잔디의 생육과 지반의 이·화학성 및 중금속 추출 실험을 통하여 다음과 같은 결론을 얻었다. Rubber chip의 토양 내 혼합은 지면의 온도 상승효과를 가져왔으며 이는 겨울철의 동해방지 및 맹아출현기를 앞당길 수 있을 것이라 추정된다. 그러나 복사열이 높은 여름에는 rubber chip에 의한 표면, 지중 온도의 상승으로 잔디의 피해가 우려된다. 또한 토양 내에 rubber chip의 혼합함량(rubber chip 20%, 40%)이 많을수록 잔디의 발아와 생육 및 피복에 부정적인 영향을 끼쳤다. Rubberchip의 토양혼합은 지반의 이·화학성 변화에 크게 작용하지 않았으며 중금속 추출실험에서도 차이를 나타내지 않아 토양환경 오염이 없을 것으로 판단된다. Rubber chip을 배토용 재료로서 사용했을 경우, 경직된 토양구조를 개선시켜 주었다. 특히 통기작업 후 rubber chip의 배토는 지반의 표면탄성을 현저히 완화시켰다. 따라서 현재 우리나라에서 보수중이 거나 건설중인 연습구장, 보조구장에 재활용이 가능한 폐타이어 rubber chip을 지반 답압 개선용, 배토용 재료로서 사용이 가능할 것으로 판단된다.

Keywords

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