Effect of Soil Organic Matter Content and pH on Toxicity of Cadmium to Paronychiurus kimi (Lee) (Collembola)

Son, Ji-No; Mo, Hyoung-Ho; Kim, Jhi-Hong; Ryoo, Mun-Il; Cho, Ki-Jong

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자료유형: 학술저널

저자정보: Son, Ji-No (Division of Environmental Science and Ecological Engineering, Korea University) Mo, Hyoung-Ho (Division of Environmental Science and Ecological Engineering, Korea University) Kim, Jhi-Hong (Division of Environmental Science and Ecological Engineering, Korea University) Ryoo, Mun-Il (Division of Environmental Science and Ecological Engineering, Korea University) Cho, Ki-Jong (Division of Environmental Science and Ecological Engineering, Korea University)

저널정보: 한국응용곤충학회 Journal of Asia-Pacific Entomology Journal of asia-pacific entomology 제10권 제1호

발행연도: 2007.1

수록면: 55 - 61 (7page)

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2007

Effect of Soil Organic Matter Content and pH on Toxicity of Cadmium to Paronychiurus kimi (Lee) (Collembola)

Son , Ji-No , Mo 외 7명 Journal of Asia-Pacific Entomology 2007.01 학술저널

2004

Consideration of Instantaneous Rate of Population Increase to Asses the Three Kinds of Heavymetal Effect on the Soil Dwelling Collembolan Paronychiurus kimi

Son , Ji-No , Cho 외 1명 한국응용곤충학회 학술발표회 2004.01 학술대회자료

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The heterogeneous physico-chemical properties of soil make it difficult to normalize the toxicological effects of metals in the Collembolan species Paronychiurus kimi (Lee). Furthermore, the physico-chemical properties of soil themselves can function as limiting factors that affect population fitness. In this study, the effects of soil organic matter (OM) and pH on the biological performance of P. kimi were assessed, and the influence of these properties on cadmium toxicity to P. kimi was also assessed at the individual and population levels. The OM and pH were found to significantly influence offspring production. All toxicological values of cadmium to P. kimi showed consistent patterns of increase with increasing OM and pH values, implying a decreased toxicity. The 28-d $LC_{50}$ values varied from 34.9 to 115.9 mg/kg, and the 28-d $EC_{50}$and 28-d $r_i=0$ also varied depending on the OM and pH values. These findings indicate that the OM and pH values themselves are important factors in determining not only the biological performance of P. kimi but also the toxicity of cadmium to P. kimi on the individual and population levels. Therefore, when ecological risk assessments are conducted for a certain soil, pre-examinations of the effects of abiotic factors and the selection of an appropriate endpoint must be accomplished before establishing levels of chemicals of concern (COC) for a certain species.

#Invertebrate #Soil physico-chemical properties #Artificial soil #Soil health #Ecological risk assessment

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