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[Cu-hyperaccumulators in mining area].

Liying Jiang1, Weiyong Shi, Xiaoe Yang

  • 1College of Environment & Natural Resources, Zhejiang University, Hangzhou 310029. jiangly111311@sina.com

Ying Yong Sheng Tai Xue Bao = the Journal of Applied Ecology
|October 19, 2002
PubMed
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Two plant species, Elsholtzia splendens and Rumex acetosa, show potential as copper (Cu) hyperaccumulators. Their significant Cu accumulation is closely linked to soil copper concentrations in mining areas.

Area of Science:

  • Environmental Science
  • Biogeochemistry
  • Plant Biology

Background:

  • Mining activities can lead to significant soil contamination with heavy metals like copper (Cu).
  • Understanding plant species' response to high metal concentrations is crucial for phytoremediation and ecological studies.

Purpose of the Study:

  • To investigate plant species distribution in copper (Cu) mining areas.
  • To analyze copper (Cu) concentrations in soils and plants.
  • To identify potential copper (Cu) hyperaccumulators.

Main Methods:

  • Field surveys were conducted in three Cu-mining areas.
  • Soil and plant samples were collected for copper (Cu) concentration analysis.
  • Correlation analysis was performed between soil and plant Cu levels.

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Main Results:

  • Copper (Cu) ore deposits were primarily found around 630 m altitude.
  • Elsholtzia splendens and Rumex acetosa were exclusively found in areas with high Cu concentrations.
  • Maximum Cu concentrations reached 1060 mg.kg-1 DW in Elsholtzia splendens and 1006 mg.kg-1 DW in Rumex acetosa, indicating hyperaccumulation potential.
  • A strong positive correlation was observed between Cu accumulation in these plants and soil Cu levels.

Conclusions:

  • Elsholtzia splendens and Rumex acetosa exhibit significant copper (Cu) hyperaccumulation capabilities.
  • These species are valuable indicators of copper (Cu) rich environments.
  • Findings support the potential use of these plants in phytoremediation strategies for copper (Cu) contaminated sites.