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生态学杂志 ›› 2011, Vol. 30 ›› Issue (01): 106-111.

• 研究报告 • 上一篇    下一篇

长白山北坡森林土壤汞的含量和形态分布

邢登华1,2,梁成华1**,王少锋2,贾永锋2   

  1. 1沈阳农业大学,沈阳 110161|2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
  • 出版日期:2011-01-08 发布日期:2011-01-08

Concentration and speciation distribution of mercury in forest soils on northern slope of Changbai Mountain

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

  1. 1Shengyang Agricultural University, Shenyang 110161, China|2Institute of Applied Ecology, Chinese Academy of Sciences, Key Laboratory of Pollution Ecology and Environmental Engineering, Shenyang 110016, China
  • Online:2011-01-08 Published:2011-01-08

摘要: 分别于2009年4月和9月对长白山北坡的土壤样品进行了采集,研究北方森林地区不同海拔土壤样品中的总汞和甲基汞的分布情况。长白山土壤THg和MeHg含量分别为0.08~0.73 mg·kg-1和0.05~0.56 μg·kg-1,库存量分别为97 kg·km-2和128 g·km-2,高于吉林省背景值,MeHg的最高含量一般出现在0~10 cm的土壤中。土壤中的汞的分布具有一定的季节性差异和空间差异,长白山森林中Hg的主要来源于大气干湿沉降的气态汞。

关键词: 麻痹性贝类毒素, 赤潮, 高效液相色谱, 小白鼠生物检测

Abstract: Soil samples were collected from the northern slope of Changbai Mountain in April and September 2009 to study the concentration and distribution of total mercury (THg) and methyl mercury (MeHg) in the soils under boreal forests at different altitudes. The THg and MeHg concentrations in the soil profiles ranged from 0.08-0.73 mg·kg-1 and 0.05-0.56 μg·kg-1, and the stocks were 97 kg·km-2 and 128 g·km-2, respectively, being higher than the background value of Jilin Province. Surface soil layer (0-10 cm) commonly had the highest MeHg concentration. There existed definite seasonal and spatial variations in the distribution of soil Hg. The gaseous Hg from wet and dry atmospheric depositions was the primary source of soil Hg in the study region.

Key words: Paralytic shellfish toxins, Red tides, HPLC, Mouse bioassay