Earth Science Frontiers ›› 2015, Vol. 22 ›› Issue (3): 402-410.DOI: 10.13745/j.esf.2015.03.035

• Article • Previous Articles    

Exchange flux of mercury on soil/air interface in black soils of Heilongjiang Province.

 LIU  Fei, CHENG  Hang-Xin, YANG  Ke, DIAO  Chuan-Dong, BANG  Min, LI  Kuo, LIU  Ying-Han   

  • Received:2013-09-12 Revised:2013-10-30 Online:2015-05-15 Published:2015-05-15

Abstract:

The mercury fluxes through soil/air interface monitoring were conducted in black soils in Heilongjiang field, using a dynamic flux chamber coupled with a Tekran 2537 B Ambient Mercury Vapor Analyzer. The average value of the mercury fluxes through soil/air interfaces in seven studied suites was 69.46±37.08 ng?m-2?h-1, which was close to that measured in cities of China. The effects of environmental factors on the mercury fluxes were analyzed. The soil mercury concentration affected the releasing ability of Hg of soils. The mercury exchange fluxes showed significantly positive correlations with total solar radiation intension, soil temperature, soil moisture and wind speed, significantly negative correlation with the relative humidity, and no correlation with atmospheric pressure.

Key words: black soil, farmland, soil/air interface, mercury exchange flux, factors

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