中文摘要：

以海西经济区中福建某高汞地区的汞元素为研究对象,基于缓变型地球化学灾害数学模型,对该地区土壤中Hg元素的缓变型地球化学灾害特征进行了研究,结果表明：该地区土壤中已经有Hg元素污染物可释放总量（TRCPHg）向可利用活动状态污染物的有效量（HgE＋C＋F、HgE＋C、HgE＋F、HgE等）释放的转化趋势。43%-71%的土壤样品可利用总汞超过了缓变型地球化学灾害的爆发点,即有43%-71%的土壤面积具有爆发Hg缓变型地球化学灾害的可能性,这与该地区原来金矿大规模的开采和冶炼（混汞法提金）有关。

英文摘要：

Taking the element Hg in a high- Hg district of Hercynian Economic Zone of Fujian province as the studied object,based on the mathematical model of delayed geochemical hazard（ DGH）,the author studied the DGH characteristics of Hg element in the soil of this district. The results showed that： in the soil of this district,there was already the transformation tendency from the total content of releasable Hg pollutants（ TRCPHg） to the effective content of available active Hg pollutants（ HgE ＋ C ＋ F,HgE ＋ C,HgE ＋ F,HgE,etc.）. The available Hg total content in 43% -71% soil samples exceeded the bursting point of DGH,namely the DGH of Hg probably broke out in 43% - 71% of soil area. This was related to the large- scale exploitation of gold ore and smelting（ amalgamation） in this district.