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J Korean Soc Environ Eng > Volume 38(9); 2016 > Article
J Korean Soc Environ Eng 2016;38(9): 504-512. doi: https://doi.org/10.4491/KSEE.2016.38.9.504
토양 및 수질 특성 비교를 통한 유기논과 관행논의 환경 특성 분석
이태구, 구본운, 박성직
한경대학교 지역자원시스템공학과
Assessment on Environmental Characteristics of Organic Paddy and Conventional Paddy by Comparing Their Soil Properties and Water Quality
Tae-Gu Lee, Bon-Wun Gu, Seong-Jik Park
Department of Bioresources & Rural Systems Engineering, Hankyong National University
Corresponding author  Seong-Jik Park ,Tel: 031-670-5131, Fax: 031-670-5139, Email: parkseongjik@hknu.ac.kr
Received: July 21, 2016;  Revised: August 29, 2016;  Accepted: September 2, 2016.  Published online: September 30, 2016.
ABSTRACT
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 PO4-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.
Key Words: Organic Farming, Conventional Paddy, Organic Paddy, Soil Property, Water Quality, Statistical Analysis
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