Korean Journal of Soil Science and Fertilizer (한국토양비료학회지)

Korean Society of Soil Science and Fertilizer (한국토양비료학회)
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Model Development for Estimating Total Soil Contents of Pb and Cd Using Chemical Properties and Extractable Contents in Paddy Soil

논 토양의 이화학적 특성 및 침출성 함량을 이용한 납과 카드뮴의 전함량 예측 모형식 개발

  • Go, Woo-Ri (Chemical Safety Division, National Academy of Agricultural Science, RDA) ;
  • Lee, Ji-Ho (Chemical Safety Division, National Academy of Agricultural Science, RDA) ;
  • Lee, Eun-Yong (Chemical Safety Division, National Academy of Agricultural Science, RDA) ;
  • Lim, Seong-Mook (Chemical Safety Division, National Academy of Agricultural Science, RDA) ;
  • Yoo, Ji-Hyock (Chemical Safety Division, National Academy of Agricultural Science, RDA) ;
  • Kim, Ji-Young (Chemical Safety Division, National Academy of Agricultural Science, RDA) ;
  • Kim, Kye-Hoon (Department of Environmental Horticulture, The University of Seoul) ;
  • Im, Geon-Jae (Chemical Safety Division, National Academy of Agricultural Science, RDA) ;
  • Kim, Won-Il (Chemical Safety Division, National Academy of Agricultural Science, RDA)
  • 고우리 (국립농업과학원 유해화학과) ;
  • 이지호 (국립농업과학원 유해화학과) ;
  • 이은용 (국립농업과학원 유해화학과) ;
  • 임성묵 (국립농업과학원 유해화학과) ;
  • 류지혁 (국립농업과학원 유해화학과) ;
  • 김지영 (국립농업과학원 유해화학과) ;
  • 김계훈 (서울시립대학교 환경원예학과) ;
  • 임건재 (국립농업과학원 유해화학과) ;
  • 김원일 (국립농업과학원 유해화학과)
  • Received : 2011.11.23
  • Accepted : 2011.12.13
  • Published : 2011.12.31
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Abstract

Predictive model for estimating total contents of cadmium (Cd) and lead (Pb) was developed by stepwise multiple-regression analysis using chemical properties and extractable contents of metal in paddy soil adjacent to abandoned mines in 2009 and 2010. Soil properties, e.g. pH, electrical conductivity (EC), organic matter (OM), available phosphorus ($P_2O_5$), and exchangeable cations (i.e. Ca, Na, K, Mg) were measured. Total contents of Cd and Pb as well as extractable contents of metals were analyzed by ICP-OES. Results showed that the total and extractable contents were estimated to be 3.55 and $0.27mg\;kg^{-1}$ in Cd and 83.38 and $24.32mg\;kg^{-1}$ in Pb on the average. From stepwise analysis, it was found that the contents of extractable Cd, Zn, Cu, as well as exchangeable Na were significantly influenced on estimation of the total contents of Cd in soil. Moreover, it also showed that the contents of extractable Pb, Zn, and Cu significantly affected estimation of the total contents of Pb in soil. More significant relationship between estimated and measured value in total contents of Pb was observed than those of Cd ($R^2$=0.87, p<0.0001). This demonstrates that extractable contents of metal are influenced more on estimation of total contents of Cd and Pb in soil than soil properties.

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References

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