| 可溶性有机物对土壤汞向大气释放的影响 |
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| 引用本文： | 韦武思,曾冯合子,王定勇.可溶性有机物对土壤汞向大气释放的影响[J].环境化学,2010,29(2). |
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| 作者姓名： | 韦武思 曾冯合子 王定勇 |
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| 作者单位： | 1. 西南大学三峡库区生态环境教育部重点实验室,重庆,400715;西南大学资源环境学院,重庆,400716
2. 西南大学三峡库区生态环境教育部重点实验室,重庆,400715;西南大学资源环境学院,重庆,400716;重庆市农业资源与环境研究重点实验室,重庆,400716 |
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| 基金项目： | 国家自然科学基金，西南大学生态学重点学科211工程建设经费 |
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| 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.
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| 关 键 词： | 可溶性有机物 土壤 汞 汞释放 |
EFFECT OF DISSOLVED ORGANIC MATTER ON MERCURY EMISSION FROM SOIL TO AIR |
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| WEI Wu-si,ZENG-FENG He-zi,WANG Ding-yong.EFFECT OF DISSOLVED ORGANIC MATTER ON MERCURY EMISSION FROM SOIL TO AIR[J].Environmental Chemistry,2010,29(2). |
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| Authors: | WEI Wu-si ZENG-FENG He-zi WANG Ding-yong |
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| Abstract: | 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. |
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| Keywords: | dissolved organic matter soil mercury mercury emission |
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