地学前缘 ›› 2015, Vol. 22 ›› Issue (3): 402-410.DOI: 10.13745/j.esf.2015.03.035

• 非主题来稿选登 • 上一篇    

黑龙江黑土区农田土壤/大气界面汞交换通量

刘飞, 成杭新, 杨柯, 赵传冬, 彭敏, 李括, 刘应汉   

  1. 中国地质大学(北京) 地球科学与资源学院, 北京100083; 中国地质科学院 地球物理地球化学勘查研究所 地球表层碳汞地球化学循环重点实验室, 河北 廊坊 065000
  • 收稿日期:2013-09-12 修回日期:2013-10-30 出版日期:2015-05-15 发布日期:2015-05-15
  • 作者简介:刘飞(1979—),男,博士研究生,地球化学专业。E-mail:liufei@igge.cn
  • 基金资助:

    中国地质调查局土地质量地球化学调查评价专项项目(1212011220054,1212011220055,12120113001700)

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

摘要:

运用动力学通量箱与Tekran 2537B 气态汞分析仪技术,对黑龙江省黑土区农田土壤/大气界面汞交换通量进行了实地监测,结果显示不同地区黑土的汞交换通量存在显著差异,7个监测点土壤/大气界面汞交换通量均值为(69.46±37.08) ng?m-2?h-1,接近我国典型城市城区土壤/大气界面汞交换通量平均水平。影响因素分析显示,土壤汞含量影响土壤释汞能力,汞交换通量与总辐射强度、土壤温度、土壤湿度和风速呈显著正相关,与相对湿度呈显著负相关,与大气压不相关。

关键词: 黑土, 农田, 土壤/大气界面, 汞交换通量, 影响因素

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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