中文摘要：

通过模拟试验，研究了浸提自稻草、腐殖土和堆肥的可溶性有机物（DOM）对紫色潮土、紫色土和黄壤三种土壤中汞向大气释放的影响．结果表明，DOM尤其是堆肥DOM能有效地抑制土壤汞向大气的释放，且土壤中DOM添加量越高，土壤汞释放量越少，即DOM对土壤汞释放的抑制作用越强；不同土壤类型，DOM的抑制作用不同，三种土壤汞释放量大小顺序均为：紫色潮土〉紫色土〉黄壤．

英文摘要：

Using simulation Experiment, effect of dissolved organic matters （DOMs） extracted from straw, humus and compost on mercury emissions from soil （purple alluial soil, purple soil and yellow soil） to air was studied. The results showed that DOMs, especially those from compost, effectively inhibited mercury emission from soil to air. Moreover, the amount of emitted mercury decreased with the amount of DOMs added into soil. In addition, the inhibition depends on the types of soils, and mercury emission was in the order of purple tide soil, purple soil, and yellow soil.