HAs-Hg and component HA-Hg existed in soils of different soil orders in descending order (from top to low) as Alfisol, semi-hydromorphic soil, initial development soil and ferrallitic soil, while FA-Hg content was the lowest in semi-hydromorphic soil.

• 腐殖酸结合汞(HAs-Hg)和组分胡敏酸结合汞(HA-Hg)在不同土纲土壤中以淋溶土纲含量最高；其次是半水成土纲和初育土纲；最低是铁铝土纲; 组分富里酸结合汞(FA-Hg)的含量以在半水成土纲中最低.