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Cd 안정동위체를 이용한 토양과 식물계에서 Cd의 거동해석
윤순강(Sun-Gang Yun),정구복(Gu-Bok Jung),김원일(Won-Il Kim),이종식(Jong-Sik Lee),김민경(Min-Kyeong Kim),김진호(Jin-Ho Kim),신중두(Joong-Du Shin),이덕배(Deog-Bae Lee),김삼권(Sam-Cwan Kim) 한국토양비료학회 2008 한국토양비료학회지 Vol.41 No.3
본 연구는 모재가 상이한 산지토양과 폐광인근 지역에 광미사 중 Cd 안정동위체의 분포와 토양 중에서 Cd 안정동위체 간의 관계를 해석하고, Cd 안정동위체 별 식물흡수 정도를 조사하기 위하여 광미사를 처리하고 고추와 콩을 재배하면서 식물체 지상부와 뿌리 중에 Cd의 안정동위체 분포에 대하여 조사하였다. 모재가 상이한 3가지(화강암, 변성암, 퇴적암) 토양에서 Cd의 8개 안정동위체(Cd<SUP>106, 108, 110, 111, 112, 113, 114, 116</SUP>)들의 토양 중 존재비는 토양별 차이가 없었다. 그러나 토양 모재차이에 관계없이 토양 중 Cd의 안정동위체 간에 관계는 크게 4가지의 분포특성을 나타내었다. Cd<SUP>106</SUP>/Cd<SUP>111</SUP> 간에는 직선형관계, Cd<SUP>114</SUP>/Cd<SUP>108 </SUP>간에는 2차식관계, Cd<SUP>110</SUP>/Cd<SUP>106</SUP> 간에는 역2차식 관계, Cd<SUP>110</SUP> / Cd<SUP>113</SUP> 간에는 클러스터형 관계를 보였다. 콩과 고추 중에 Cd은 안정동위체 중 Cd<SUP>116</SUP>, Cd<SUP>114</SUP>, Cd<SUP>112</SUP>이 주를 이루었고 존재비로는 Cd<SUP>116</SUP>이 가장 많았다. 반면 콩과 고추의 뿌리에서는 Cd<SUP>116</SUP>의 존재비가 감소하고 다른 7종류의 Cd 안정동위체 존재비가 상대적으로 증가하는 경향을 보였다. This experiment was conducted to describe the distribution of stable isotope Cd in the mine tailing and uncultivated soils derived from different parent rocks (Igneous rock, Metamorphic rock, and Sedimentary rock) as well as the movement of Cd isotopes from soil to plants, soybean and pepper. The results showed that there was no significant difference in isotopic ratios in soil among the eight kinds of stable isotope of Cd. However the relationship among isotopic ratios of stable isotope of Cd in soils were classified to four types, linear type between Cd<SUP>106</SUP>/Cd<SUP>111</SUP> and Cd<SUP>108</SUP>/Cd<SUP>111</SUP>, quadratic type between Cd<SUP>114</SUP> / Cd<SUP>108</SUP> and Cd<SUP>111</SUP>/Cd<SUP>110</SUP>, reverse quadratic type between Cd<SUP>110</SUP>/Cd<SUP>106</SUP> and Cd<SUP>108</SUP> / Cd<SUP>116</SUP>, and cluster type between Cd<SUP>110</SUP>/Cd<SUP>113</SUP> and Cd<SUP>116</SUP>/Cd<SUP>113</SUP>. While the individual stable isotopes of Cd in root were remained except on the plot of pepper without mine tailing application. Cd<SUP>116</SUP>, Cd<SUP>114</SUP>, and Cd<SUP>112</SUP> played active roles among other stable isotopic Cds in bean and red pepper, and Cd<SUP>116</SUP> was ranked the highest abundance ratio. Contrary to crop itself, the abundance ratios of Cd116 in bean and read pepper roots were decreased, and the ones of other Cds were relatively increased.
윤순강 ( Sun Gang Yun ),김원일 ( Won Il Kim ),김진호 ( Jin Ho Kim ),김선종 ( Seon Jong Kim ),고문환 ( Mun Hwan Koh ),엄기철 ( Ki Cheol Eom ) 한국환경농학회 2002 한국환경농학회지 Vol.21 No.4
Irrigation water quality along Donjin river watershed was monitored to find a possible pollutants, for maintaining water quality to achieve food safety through water quality preservation of river. As a pollution indicators, such as Biological Oxygen Demand(BOD), Chemical Oxygen Demand(COD), Total Nitrogen(T-N), and Total Phosphate(T-P) in Dongjin river were examined from May to November in 2001. The results were as follows : The BOD level of Dongji n river ranged from 2.84 to 6.45 mg/L, which would be in a Ⅱ~Ⅳ grade of the potable water criteria by Ministry of Environment. Averaged BOD level of downstream DJ6(After Jeongupcheon confluence) was 4.07 mg/L. The average COD level of Dongjin river ranged from 11.20 to 32.96 mg/L. COD level of DJ6 rapidly increased rapidly after the junction of Dongjin river and Jungupcheon because it showed the latter had relatively high pollution level. T-N content were significantly high in all sites of Dongjin river ranged through 4.16 to 5.84 mg/L. T-P examined high concentration than another thing point by 0.19 mg/L after Jeongupcheon confluence as BOD and COD. COD of main stream was expressed high concentration to dry season after rainy season. In case of T-P, pollution degree of dry season before rainy season appeared and examined that quality of water was worsened go by dry season after rainy season. The water quality of Dongjin river was deteriorated with inflow of Jungupcheon polluted by municipal and industrial sites near Jungup city.
윤순강 ( Sun-gang Yun ),현병근 ( Byung-keun Hyun ),전상호 ( Sang-ho Jeon ),고우리 ( Woo-ri Go ),손연규 ( Yeon-kyu Sonn ) 한국환경농학회 2019 한국환경농학회 학술대회집 Vol.2019 No.-
지속가능한 친환경농업의 기반조성으로 농업환경 개선과 보전을 위하여 농식품부 주관으로 친환경농업기반구축사업이 실시되고 있으며 2018년 선정된 16개 친환경농업지구의 농경지 토양에 대한 토양기초조사 (물리성)를 실시한 결과는 다음과 같다. 친환경농업 지구에 토양통의 분포는 96개 토양통이 확인되었고 그 중에서 지산통이 671개 필지로 전체의 10.7%를 차지하여 가장 많았으며 300개 이상의 필지를 나타낸 토양통은 8개에 해당되었으며 이들이 차지하는 필지 수는 3,488개였고 전체 조사 필지의 53.5%로 나타났다. 토양이용 추천은 전체 필지 중에서 논이 5,447 필지로 83.7%에 해당되었고, 밭 이용추천은 전체 필지 중에서 844 필지로 12.9%에 해당되어 논과 밭의 필지 수를 합한 것이 전체 조사 필지의 96.6%로 나타났다. 토양 속(soil family)의 분포는 식양질속(fine loamy)이 2,570 필지로 전체의 39.6%, 그리고 사양질 속(coarse loamy)이 2,027 필지에 31.2%로 나타났다. 친환경농업 지구에 농경지의 경사도는 평탄지(경사 0~2%)와 약한 경사지(경사 2~7%)에 해당되는 필지수가 5,378 필지로서 전체 조사 필지의 82.6%에 해당되었으며 배수등급은 7개 등급 중에서 약간양호, 양호, 매우양호에 해당되는 농경지 필지 수가 3,665 필지로서 전체 조사 필지의 56.2%를 나타내었다.
윤순강 ( Sun-gang Yun ),채미진 ( Mi-jin Chae ),김유학 ( Yoo-hak Kim ),공명석 ( Myung-suk Kong ),정하일 ( Ha-il Jung ),김석철 ( Suk-cheol Kim ),김명숙 ( Myoung-suk Kim ),박성진 ( Seong-jin Park ),이창훈 ( Chang-hoon Lee ),양재의 ( 한국환경농학회 2018 한국환경농학회지 Vol.37 No.2
BACKGROUND: Agricultural soils are vulnerable from contamination of heavy metal derived from industrial waste. Monitoring on heavy metals on agricultural soils around industrial complexes and evaluation on distributional state on the concentrations of heavy metals in soil have been carried out for problem assessment on soil condition. METHODS AND RESULTS: Soil samples of 1,200, were collected from sixty site of industrial complexes located Gyounggi, Chungbuk, Cheonbuk, and Gyoungnam provinces. Total concentration of Cu, Pb, Zn, Ni, and As were analyzed. Heavy metal concentrations in most soil samples were below warning criteria, except 1 site of Pb, Ni, and As, separately. The comparison of mean values of heavy metal concentrations between soils around industrial complexes and paddy soils, showed similar levels of heavy metals, except Pb. The concentrations of lots of heavy metals were distributed between from warning criteria to one fifth level of warning criteria. However, in the case of Cu and Pb, more than 30% were distributed below one twenties level of warning criteria. These results were very similar with the distribution state of heavy metals in upland soils. The concentrations of heavy metals in surface soil and subsoil were similar among the heavy metals in soils around industrial complexes. CONCLUSION: The concentrations of heavy metals in soils around industrial complexes were distributed close to warning criteria. Long term and continous monitoring and evaluation on heavy metals in agricultural soils are required for food safety and sustainable soil management.