JIN Lan-shu,JIA Cheng-nan,GAO Xiang-qi,et al.Study of Influence on Remediation of Chromium in the Soil by Alfalfa Under the Acetic Acid-Potassium Acetate Buffer Solution[J].Northern Horticulture,2012,36(17):183-186.
乙酸-乙酸钾缓冲溶液对苜蓿草吸收土壤中铬离子的影响研究
- Title:
- Study of Influence on Remediation of Chromium in the Soil by Alfalfa Under the Acetic Acid-Potassium Acetate Buffer Solution
- 文章编号:
- 1001-0009（2012）17-0183-04
- 分类号:
- S 551+.7
- 文献标志码:
- A
- 摘要:
- 采用室内盆栽试验和BCR优化连续萃取法，研究了不同pH值乙酸-乙酸钾缓冲溶液对混合污染土壤中重金属铬的形态变化及紫花苜蓿吸收土壤中铬离子的影响。结果表明：乙酸-乙酸钾缓冲溶液对土壤中铬离子由非有效态转化为有效态的作用显著；并且有效提高了苜蓿草对土壤中重金属铬离子的吸收；不同pH值的乙酸-乙酸钾溶液对苜蓿草吸收土壤中铬离子的影响效果也有差异。在试验范围内，溶液pH为5.8的乙酸-乙酸钾缓冲剂对苜蓿草吸收重金属的影响效果最佳，此时，苜蓿草对铬离子的富集量达到37.55 mg/kg，富集系数达到 0.22；与对照相比提高近3倍。
- Abstract:
- A pot experiment and the sequential extraction procedure of the optimized European Community Bureau of Reference(BCR) were conducted to investigate the absorption of chromium by alfalfa and the redistribution of fractions under different pH Acetic acid-Potassium acetate buffer solution.The results showed that soil chromium ion from its inactive state into effective state effect and the migration ability of chromium from soil to plant were notable promoted with adding Acetic acid-Potassium acetate solution to the soil.The migration ability of chromium ion from soil to plant was also different under different pH Acetic acid-Potassium acetate buffer solution.In the test range，the accumulation of chromium from soil to plant were a control sample of 3 times when the pH was 5.8，the content value was 37.55 mg/kg，the enrichment coefficient reached 0.22.
参考文献/References:
[1]Salt D E,Smith R D,Raskin I.Phytoremediation[J].Ann Rev Plant Physio Plant Molec Biol,1998,49:643-668.
[2]丁园,宗良纲.潮土重金属复合污染对紫花苜蓿的影响[J].南昌航空工业学院学报,2002,16(3):47-50. [3]Peralta-Videa J R,Gardea-Torresdey J L，Gomez E,et al.Effect of mixed cadmium,copper,nickel and zinc at different pHs upon alfalfa growth and heavy metal uptake[J].Advances in Environmental Researth，2002,119:291-301. [4]Gardea-Torresdey J L，Tiemannks，Gonzalez J H，et al.Removal of copper ions from solution by silica-immobilized medicago saliva(alfalfa) [A].In：Erickison L E，Tillison D L，Grant S C，et al.,eds.Proceeding of the 10th Annual Conference of Hazardous Waste Rsearch[C].Manhattan，KS，May 23-24，1995：209-217. [5]Prtslys-Vifrs J R，Delarosa G，Gonzalez J H，et al.Effect of the growth stage on the heavymetal tolerance of alfalfa plant [J].Advances in Environmental Research，2004，8(3-4)：679-685. [6]王新,贾永锋.紫花苜蓿对土壤重金属富集及污染修复的潜力[J].土壤通报,2009,44(4):932-935. [7]张健,孙根年.土壤重金属污染与植物修复研究进展[J].云南师范大学学报(自然科学版),2004(2):52-57. [8]丛孚奇,曲蛟,丛俏.磷酸二氢钾-磷酸氢二钠缓冲溶液调控下白菜对钼矿区重金属污染土壤的修复[J].环境科学与管理,2008,33(6):24-26. [9]丛孚奇,曲蛟,丛俏.磷酸氢二钠-柠檬酸缓冲溶液调控下白菜对钼矿区重金属污染土壤的修复[J].环境保护科学,2009,35(1):65-67. [10]Rauret G.Extraction procedures for the determination of heavy metals in contaminated soil and sediment[J].Talanta，1998,46:449-455. [11]Tessier A,Campbell P G C,Bisson M.Sequential extraction procedure for the speciation of particulate trace metals[J].Anal Chem,1979,51:844-851. [12]Sutherland R A，Tack F M G.Fractionation of Cu Pb and Zn in certified reference soils SRM 2710 and SRM 2711 using the optimized BCR sequential extraction procedure[J].Advances in Environmental Research，2003(8):37-50. [13]Reed B E,Carriere P C,Moore R.Flushing of Pb contaminated soil using HCl,EDTA and CaCl2[J].Journal of Environmental Enginerring,1996，122(1):48-50. [14]Wasay S A,Barrington S F,Tokunaga S.Organic aicds to remediate a clay loam polluted by heavy metals[J].Canadian Agricultural Engineering,1998,40(1):9-15. [15]姚岚,王成瑞.不同添加剂对污泥堆肥过程中重金属形态的影响研究[J].环境卫生工程,2008,16(2):8-10. [16]Tu C (涂从).The study of biological availability of Ni forms in soils[J].Acta Emviron Sci (in Chinese) (环境科学学报),1997,17(2)：179-185. [17]Wang P X,Qu E F,Li Z B.Fractions and availability of nickel in Loessial soil amended with sewage slufge or sewage[J].J Eviron Qual,1997(26):795-800. [18]Xu J L,Yang J R.Heavy metals in ecological system of land (in Chinese) [M].Beijing Environ Sci Press of Chinese,1990:158. [19]金兰淑,佟亚欧,林国林.4A沸石对土壤铅浓度及形态的影响[J].水土保持学报,2010,24(6):77-180. [20]郑国砥,陈同斌,高定,等.好氧高温堆肥处理对猪粪中重金属形态的影响[J].中国环境科学,2005,25(1):6-9. [21]Vassil A D,Kapulnik Y,Raskin I,et al.The role of EDTA in lead transport and accumulation by Indian mustard[J].Plant Physiol,1998,117:447-453. [22]Blaylock M J,Salt D E,Dushenkov S,et al.Enhanced accumulation of Pb in Indian mustard by soil-applied chelating agents[J].Environ Sci Technol,1997(31):860-865. [23]Cooper E M，Sims J T,Cumningham S D,et al.Chelate-assisted phytoextraction of lead from contaminated soils[J].J Environ Qual,1999,28：1709-1719. [24]Kayser A,Wenger K,Keller A,et al.Enhancement of phytoextraction of Zn，Cd and Cu from calcareous soil：the use of NTA and sulfur amendments[J].Environ Sci Technol,2000,34:1778-1783. [25]Song J,Luo Y M,Wu L H.Chelate enhanced phytoremediation of heavy metal contaminated soil VanBriesen JM,Nowack B.Biogeochemistry of Chelating Agents[M].Washington DC:American Chemical Society,2005.
备注/Memo
第一作者简介：金兰淑（1968-），女，吉林人，博士，副教授，硕士生导师，现主要从事农业环境与生态学方面的研究工作。E-mail：ara168@163.com.