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Pollution of Pb in paddy field soil and rice plants at roadside areas;II. A study of the relationship between the content of Pb in paddy field soil and rice plants (도로변(道路邊)에 인접(隣接)한 경작지(耕作地) 토양(土壤) 및 작물체중(作物體中)의 연오염(鉛汚染);제(第)2보(報) 경작지(耕作地) 토양중(土壤中)의 연함량(鉛含量)과 작물체중(作物體中) 연함량(鉛含量)과의 관계(關係))

  • Lee, Seog-June;Kim, Jang-Eok
    • Korean Journal of Environmental Agriculture
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    • 제10권2호
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    • pp.138-148
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    • 1991

  • The object of this stduy was to investigate the pollution by Pb in rice plants which were cultivated in paddy field soils located near roadside areas and to discover the relationship between lead content in rice plants and soils. Samples of soils and rice plants were collected directly from paddy fields at various distances from highways and expressways located in Kyungpook province. The results obtained were as follows : 1. The average content of Pb in each part of the rice plant was 12.8ppm in roots, 4.8ppm in leaves, 4.3ppm in stems, and 0.4ppm in brown rice. 2. The content of Pb in roots showed highly positive correlation with the Pb content of the soil. 3. The Pb content in stems, leaves, and brown rice showed positive correlation with the Pb content in roots. 4. The content of organically bounded, carbonate, and sulfide Pb in soils showed highly positive correlation with the Pb content in roots. 5. The absorption ratio showed positive correlation with soil pH and negative correlation with the content of Fe in soils.

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