한국토양비료학회지 (Korean Journal of Soil Science and Fertilizer)

  • 제47권3호
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  • Pages.191-198
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  • 2014
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  • 0367-6315(pISSN)
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  • 2288-2162(eISSN)
한국토양비료학회 (Korean Society of Soil Science and Fertilizer)
권호 표지
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Distribution of Phytoavailable Heavy Metals in the Korean Agricultural Soils Affected by the Abandoned Mining Sites and Soil Properties Influencing on the Phytoavailable Metal Pools

  • Lim, Ga-Hee (Department of Environment Horticulture, University of Seoul) ;
  • Kim, Kye-Hoon (Department of Environment Horticulture, University of Seoul) ;
  • Seo, Byoung-Hwan (Department of Agronomy and Medicinal Plant Resources, Gyeongnam National University of Science and Technology) ;
  • Kim, Kwon-Rae (Department of Agronomy and Medicinal Plant Resources, Gyeongnam National University of Science and Technology)
  • 투고 : 2014.04.14
  • 심사 : 2014.06.02
  • 발행 : 2014.06.30
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초록

Absorption and accumulation of heavy metals in plants were determined by phytoavailable contents rather than total contents of heavy metals. Therefore, phytoavailability-based management protocol should be prepared for safe food crop production in contaminated agricultural lands. This study was conducted to understand the distribution and phytoavailability of heavy metal in the Korean agricultural soils affected by abandoned mining sites along with investigation of soil properties (soil pH, OM, DOC, clay content, Al/Fe/Mn content) influencing on the metal phytoavailability. For this, 142 agricultural soils located nearby 39 abandoned mining sites distributed in five province in Korea, were analyzed. Among the four different heavy metals, cadmium (Cd) and zinc (Zn) appeared to exist in more phytoavailable form than cupper (Cu) and lead (Pb). Soil pH was the main factor governing phytoavailable Cd, Pb, and Zn showing positive relationship with partitioning coefficients of the corresponding metals; Cd (r = 0.66, P < 0.001), Pb (r = 0.70, P < 0.001), and Zn (r = 0.62, P < 0.001). This implied higher phytoavailability of the corresponding metals with higher soil pH. In contrast, phytoavailability of Cu (r = 0.41, p < 0.01) was only negatively related with soil DOC (dissolved organic carbon).

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