대한환경공학회지 (Journal of Korean Society of Environmental Engineers)

  • 제38권9호
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  • Pages.504-512
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  • 2016
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  • 1225-5025(pISSN)
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  • 2383-7810(eISSN)
대한환경공학회 (Korean Society of Environmental Engineers)
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토양 및 수질 특성 비교를 통한 유기논과 관행논의 환경 특성 분석

Assessment on Environmental Characteristics of Organic Paddy and Conventional Paddy by Comparing Their Soil Properties and Water Quality

  • 이태구 (한경대학교 지역자원시스템공학과) ;
  • 구본운 (한경대학교 지역자원시스템공학과) ;
  • 박성직 (한경대학교 지역자원시스템공학과)
  • Lee, Tae-Gu (Department of Bioresources & Rural Systems Engineering, Hankyong National University) ;
  • Gu, Bon-Wun (Department of Bioresources & Rural Systems Engineering, Hankyong National University) ;
  • Park, Seong-Jik (Department of Bioresources & Rural Systems Engineering, Hankyong National University)
  • 투고 : 2016.07.21
  • 심사 : 2016.09.02
  • 발행 : 2016.09.30
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초록

본 연구에서는 토양 및 수질 특성 모니터링을 통한 유기논과 관행논의 환경 영향을 조사하였다. 용인과 안성 지역의 유기논과 관행논에서 표층(0~15 cm) 및 심층(15~30 cm) 토양과 수질 시료를 채취 및 분석하였다. 집단 간의 유의성의 차이는 던컨의 다중검정으로 판별하였다. 실험 결과 T-P 농도는 표층 및 심층 토양 모두에서 안성 지역이 용인 지역보다 높게 나타났다. 안성 논토양에서 유기논과 관행논의 T-P 농도의 차이는 유의미한 차이를 보였지만, 용인에서는 나타나지 않았다. 용인과 안성 지역 모두에서 유기논 토양의 T-N 농도는 관행논 보다 낮게 나타났다. 안성 유기논의 심층 토양의 수분함량은 다른 논에 비하여 현저한 차이가 나타났으며, 이는 silt-clay 함량 결과와 일치한다. 관행논 물의 pH와 EC는 유기논에 비하여 높게 나타났다. 안성 지역에서 관행논의 COD, T-P, 그리고 $PO_4-P$가 유기논에 비하여 높게 나타났다. 회귀분석 결과 T-N을 제외하고 토양 특성과 수질 결과 간에 상관성이 없었다.

In this study, we investigated the environmental impact of organic and conventional paddy by monitoring soil properties and water quality. We sampled and analyzed topsoil (0~15 cm), subsoil (15~30 cm), and water of organic and conventional paddy fields in Yongin and Anseong, South Korea. The statistical significance between groups was determined by Duncan's multiple range test. The results show that T-P concentrations in both topsoil and subsoil of Anseong paddy were higher than those of Yongin paddy. The significant difference of T-P between organic and conventional paddy was observed in Anseong but not in Yongin. T-N of organic paddy soil was lower than that of conventional paddy in both Anseong and Yongin region. Water content for subsoil of organic paddy in Anseong was significantly different from others, which is consistent with the results of silt-clay content. pH and EC of water in conventional paddy were higher than those in organic paddy. In Anseong, COD, T-P, and $PO_4-P$ concentration of conventional paddy were higher than those of organic paddy. The regression analysis presented that there were no significant relationship between soil properties and water quality data except T-N.

키워드

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