不同腐殖酸物质对土壤中汞的固定作用和植物吸收的影响.PDF

27 1 Vol. 27, No. 1 2007 1 Acta Scientiae Circumstantiae Jan., 2007 , , , . 2007. [ J]. , 27( 1): 101- 105 Yan S D, Bu Y S, Liu L J, e t a l. 2007. Effects of different hum ic acid materials on mercury fixation in soil and mercury absorption by plant[ J]. Acta ScientiaeCircumstantiae, 27( 1): 101- 105 * 闫双堆, 卜玉山 , 刘利军,李红梅,李兵霞 山西农业大学资源环境学院, 太谷 030801 : 2006-01-16 : 2006-09-28 : 2006-10-26 : . , , , . HgCl 2 CK , 2 73. 62%71. 11%63. 39%40. 05%33. 61%22. 26%5. 66% . : ; ; : 0253-2468( 2007) 01-0101-05 : X53 : A Effects of differenthum ic acidm aterials onm ercury fixation in soil andm ercury absorption by plant * YAN Shuangdui, BU Yushan , LIU Lijun, LIHongme,i LI Bingxia ShanxiA gricultureUniversity , College of esources and Environment Science, Taigu 030801 R eceived 16 January 2006; received in revised form 28 September 2006; accepted 26O cteber 2006 A bstract: A pot expermi entwas conducted to study the effects of different humic acidmaterials on organic combined mercury and totalmercury contents in soil and the biological availability of soil mercury. The results indicated that different humic acid materials significantly increased organic combined mercury and remainedmercury in soil, reduced the volatility quantity of soilmercury, and therefore decreased the biological availability of soilmercury. Comparing to CK , whichwas only addedw ithHgCl , the absorption quantities of rape tomercury in treatments addedw ith hum icacid sodium, purified 2 2 weathering coal hum ic acid, soil hum ic acid, ammonified weathering coal, weathering coal, lignite coal and peat decreased 73. 62%, 71. 11%, 6339%,