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NTIS 바로가기한국환경농학회지 = Korean journal of environmental agriculture, v.32 no.3, 2013년, pp.171 - 178
서병환 (경남과학기술대학교 농학한약자원학부) , 임가희 (서울시립대학교 환경원예학과) , 김계훈 (서울시립대학교 환경원예학과) , 김장억 (경북대학교 응용생물화학부) , 허장현 (강원대학교 바이오자원환경학과) , 김원일 (국립농업과학원 화학물질안전과) , 김권래 (경남과학기술대학교 농학한약자원학부)
BACKGROUND: Consensus of heavy metal phytoavailability in soils needs to be introduced for soil management protocols in relation to safer food production in the contaminated agricultural soils. For this, setting up the method for evaluation of metal phytoavailability in soil is an essential prerequi...
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핵심어 | 질문 | 논문에서 추출한 답변 |
---|---|---|
중금속의 유효도를 측정하는 방법에는 어떤 것들이 있는가? | 중금속의 존재형태 및 유효도의 중요성이 부각되면서, 유효도를 평가하기 위한 여러 가지 측정방법들이 개발되었다. 유효도를 측정하는 방법은 크게 묽은산(0.1 N HCl, 0.43 M HNO3)을 이용하는 방법(Wu et al., 2012), 킬레이트(EDTA, DTPA) 결합력을 이용하는 방법(Jackson and Alloway 1991; Bermond et al. 1998; Hammer and Keller 2002), 중성염(1M NH4NO3, 0.1 M NaNO3, 0.01 M CaCl2)의 치환력을 이용하는 방법(DIN, 1995; McLaughlin et al. 1999; Nolan et al. 2005), 뿌리의 분비물을 모사한 복합 유기산 추출방법(Chen et al., 2004: Feng et al. | |
토양 중 카드뮴, 납과 같은 중금속은 무엇을 통해 식물로 전이되는가? | 토양 중 카드뮴, 납과 같은 중금속은 뿌리를 통해서 식물로 전이되는데, 이런 이유로 오염된 농경지에 대한 안전관리는 안전한 농산물 생산에 있어 매우 중요하다. 세계 각국의 토양 중 중금속에 대한 안전관리 기준은 기본적으로 총함량에 기초한 기준을 이용하고 있다. | |
중금속에 대한 환경관리의 목적은 무엇인가? | 중금속 총함량에 기초한 기준은 관리적인 측면에서는 매우 유용할 수 있다. 그러나, 중금속에 대한 환경관리는 근본적으로 중금속 노출에 영향을 받는 환경, 생물, 인간에 대한 위해성을 최소화 하는 것을 목적으로 하며(Naidu et al., 2003a), 이를 위한 접근으로 총함량 기준은 적절치 않다는 지적이 있다(Naidu et a. |
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