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cje ›› 2011, Vol. 30 ›› Issue (05): 902-906.

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Mercury pollution in natural soil collected from Wanshan mercury mining area, Guizhou Province.

DAI Zhi-hui1,2, FENG Xin-bin1**, LI Ping1, QIU Guang-le1, SHANG Li-hai1   

  1. 1State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China|2Graduate University of Chinese Academy of Sciences, Beijing 100049, China
  • Online:2011-05-08 Published:2011-05-08

Abstract: To clarify the distribution of mercury pollution in the natural soil in Wanshan mercury (Hg) mining area, total mercury (THg) concentrations were measured in 0-30 cm soil layers of alluvial soil, shrub soil and forest soil along the Aozhai river and Xiaxi river with a interval of 4 km. THg concentrations in the same vegetation cover area varied in a wide range (alluvial soil was 0.16-389 mg·kg-1, shrub soil was 0.09-312 mg·kg-1 and forest soil was 0.05-299 mg·kg-1), and spatial distribution of THg indicated that THg in natural soil decreased with increasing distance from the Hg mining area. Moreover, THg concentrations decreased from alluvial soil, shrub soil to forest soil in a sample site, and they decreased with increasing depth in soil profiles.

Key words: Plastic film mulching, Spring wheat, Soil temperature, Soil moisture, Yield, Semiarid area