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生态学杂志 ›› 2011, Vol. 30 ›› Issue (05): 987-992.

• 汞的生物地球化学专辑 • 上一篇    下一篇

长白山森林地区河流中汞的时空分布特征

邢登华1,2,王少锋1,贾永锋1**,梁成华2   

  1. 1中国科学院沈阳应用生态研究所污染生态与环境工程重点实验室, 沈阳 110016|2沈阳农业大学, 沈阳 110866
  • 出版日期:2011-05-08 发布日期:2011-05-08

Temporal and spatial distribution of mercury in the rivers from the Changbai Mountain area.

XING Deng-hua1,2, WANG Shao-feng2, JIA Yong-feng2**, LIANG Cheng-hua1   

  1. 1Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China|2Shengyang Agricultural University, Shenyang 110866, China
  • Online:2011-05-08 Published:2011-05-08

摘要: 采集并测定了枯水期和丰水期长白山北坡几条河流的水样,研究了长白山地区河流中总汞和甲基汞的时空变化规律。长白山北坡地区河流总汞的变化范围为2.0~20 ng·L-1,受北方燃煤等人为活动影响,枯水期总汞含量高于丰水期;甲基汞的变化范围为0.12~0.55 ng·L-1,不同季节的甲基汞变化不大。水体汞含量随海拔的升高而降低,汇入松花江的几条河流对松花江水体的影响较为明显,随着河流的汇入溶解态汞含量下降,颗粒态汞含量升高。与世界上其他一些森林水体对比发现,长白山水体甲基汞含量较低,但总汞含量较高。估计研究地区河流一年将向下游地区输出33 kg的总汞以及200 g甲基汞,这将进一步加剧下游水体汞的负担。

关键词: 太湖, 白鹭, 污染物, 生物指示剂, 繁殖成功率

Abstract: The temporal and spatial distributions of mercury in river water in the Changbai Mountain area were studied. Total mercury and methylmercury were measured in water samples collected in both low flow period and flood period from Changbai Mountain forest area. The results show that total mercury concentrations varied from 2.0 to 20 ng·L-1 and were higher in low flow period than those in flood period due to local coal combustion for domestic heating in winter. Methylmercury concentrations ranged from 0.12 to 0.55 ng·L-1 and were almost comparable between the different periods. Mercury concentrations were decreased with increase of altitude. The influence of the Songhua River in which several rivers flow into was evident, dissolved mercury decreased and particulate mercury increased with river inflow. Compared to other forest rivers worldwide, methylmercury concentrations were relatively lower, however, total mercury concentrations were higher. The estimated output of THg and MeHg to downstream in study area was 33 kg·a-1 and 200 g·a-1 respectively, which further increase the downstream loads of mercury.

Key words: Tai Lake, Egretta garzetta, Pollutants, Bioindicator, Breeding success