• Title/Summary/Keyword: Arsenic inicator species

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Ecosystem Risk Assessment Using the Indicator Species (지표종을 이용한 생태계 위해성평가)

  • Chang, Jin-Soo;Kim, Kyoung-Woong
    • Journal of Soil and Groundwater Environment
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    • v.12 no.1
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    • pp.103-115
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    • 2007
  • Risk assessment by living indicator species provides the information about the ecosystem disturbance, disapperance of symbiosis and change of living group. In the initial stage of this kind research, the degree of contamination was reported using the level of simple number, but simple number may not represent the risk itself which can be casued in the living organisms. Risk assessment using various indicator species overcomes these limitations and can be expanded to the DNA level. In many developed counties, the government has supervised the researches about the indicator species for the monitoring and its application to ecosystem restoration. Several living indicator species found in the vicinity of the abandoned Au mines such as fern, earthworm, bacteria, rhizosphere-rhizoplane, salamamdor and DNA change of these species are described in this paper.