大同盆地地方氟病地区土壤中氟的赋存形态研究
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摘要
以大同盆地地方氟病地区土壤为研究对象,采用连续化学提取法逐级提取土壤中水溶态、离子交换态、铁锰结合态、有机束缚态和残余态的氟,研究了大同盆地土壤中氟的赋存形态特征以及控制土壤中氟赋存形态的因素,进而探讨了土壤中氟氧化物迁移与转化对大同盆地高氟地下水形成的影响。结果表明:研究区土壤中氟的5种赋存形态按含量大小呈现出残余态氟水溶态氟>交换态氟>有机束缚态氟>铁锰结合态氟的分布规律;相关分析显示水溶态氟与铁锰结合态氟呈现正相关性,离子交换态氟与有机束缚态氟和铁锰结合态氟呈现显著正相关性;大同盆地土壤中氟的背景值较高(545.29mg/kg),并在一定条件下各种形态的氟相互转化,可提供更多自由态的氟进入地下水中,从而形成高氟地下水。
This paper takes soil samples from endemic fluorosis-impacted areas of Datong Basin as the study objects,analyzes the species of fluorine in soil samples by using sequential chemical extraction procedure and separates the species of fluorine into five fractions:water soluble fluoride(Ws-F),exchangeable fluoride(Ex-F),fluoride bound to Fe/Mn oxides(Fe/Mn-F),fluoride bound to organic matter(Or-F)and residual fluoride(residual-F).The contents of different fluoride forms are decreasing in the order:residual fluoride(residual-F)water soluble fluoride(Ws-F)>exchangeable fluoride(Ex-F)>fluoride bound to organic matter(Or-F)>fluoride bound to Fe/Mn oxides(Fe/Mn-F).The results of correlation analyses show that Ws-F is correlated with Re-F and Ex-F is significantly correlated with Or-F and Fe/Mn-F.The average content of fluorine in soils of Datong Basin is 545.29mg/kg and different forms of fluorine can be mutually transformed under favorable conditions and provide more free states of fluoride into the groundwater.
This paper takes soil samples from endemic fluorosis-impacted areas of Datong Basin as the study objects,analyzes the species of fluorine in soil samples by using sequential chemical extraction procedure and separates the species of fluorine into five fractions:water soluble fluoride(Ws-F),exchangeable fluoride(Ex-F),fluoride bound to Fe/Mn oxides(Fe/Mn-F),fluoride bound to organic matter(Or-F)and residual fluoride(residual-F).The contents of different fluoride forms are decreasing in the order:residual fluoride(residual-F)water soluble fluoride(Ws-F)>exchangeable fluoride(Ex-F)>fluoride bound to organic matter(Or-F)>fluoride bound to Fe/Mn oxides(Fe/Mn-F).The results of correlation analyses show that Ws-F is correlated with Re-F and Ex-F is significantly correlated with Or-F and Fe/Mn-F.The average content of fluorine in soils of Datong Basin is 545.29mg/kg and different forms of fluorine can be mutually transformed under favorable conditions and provide more free states of fluoride into the groundwater.
引文
[1]Guo,H.M.,Y.X.Wang.Hydrogeochemical processes in shallow quaternary aquifers from the northern part of the Datong Basin,China[J].Applied Geochemistry,2004,19(1):19-27.
[2]谢正苗,吴卫红,徐建民.环境中氟化物的迁移和转化及其生态效应[J].环境科学进展,1999(2):41-54.
[3]Delrazo,L.M.,J.C.Corona,G.Garciavargas,et al.Fluoride levels in well-water from a chronic arsenicism area of northern Mexico[J].Environmental Pollution,1993,80(1):91-94.
[4]焦有,宝德俊,尹川芬.氟的土壤地球化学[J].土壤通报,2000(6):251-254,286.
[5]杨军耀.水——土系统氟迁移影响因素分析[J].工程勘察,1998(3):44-46.
[6]杨勇,郭华明.大同盆地地下水环境演化分析[J].岩土工程技术,2003(2):107-111.
[7]王焰新,苏春利,谢先军,等.大同盆地地下水砷异常及其成因研究[J].中国地质,2010,37(3):771-780.
[8]桂建业,韩占涛,张向阳,等.土壤中氟的形态分析[J].岩矿测试,2008,110(4):284-286.
[9]Gao,X.B.,Y.X.Wang,Y.Li,et al.Enrichment of fluoride in groundwater under the impact of saline water intrusion at the salt lake area of Yuncheng basin,northern China[J].Environmental Geology,2007,53(4):795-803.
[10]黄春雷,丛源,陈岳龙,等.晋南临汾-运城盆地土壤氟含量及其影响因素[J].地质通报,2007,146(7):878-885.
[11]于群英,慈恩,杨林章.皖北地区土壤中不同形态氟含量及其影响因素[J].应用生态学报,2007(6):1333-1340.
[12]Li,J.,Y.X.Wang,X.Xie,et al.Hierarchical cluster analysis of arsenic and fluoride enrichments in groundwater from the Datong basin,Northern China[J].Journal of Geochemical Exploration,2012,118:77-89.
[13]Xie,X.,Y.X.Wang,M.Duan,et al.Sediment geochemistry and arsenic mobilization in shallow aquifers of the Datong basin,northern China[J].Environmental Geochemistry and Health,2009,31(4):493-502.
[14]Guo,Q.,Y.X.Wang,T.Ma,et al.Geochemical processes controlling the elevated fluoride concentrations in groundwaters of the Taiyuan basin,Northern China[J].Journal of Geochemical Exploration,2007,93(1):1-12.
[15]Guo,H.M.,Y.X.Wang.Geochemical characteristics of shallow groundwater in Datong basin,northwestern China[J].Journal of Geochemical Exploration,2005,87(3):109-120.
[16]Xie,X.,Y.X.Wang,C.Su,et al.Arsenic mobilization in shallow aquifers of Datong Basin:Hydrochemical and mineralogical evidences[J].Journal of Geochemical Exploration,2008,98(3):107-115.
[17]Wang,Y.,S.L.Shvartsev,C.So.Genesis of arsenic/fluoride-enriched soda water:A case study at Datong,northern China[J].Applied Geochemistry,2009,24(4):641-649.
[18]谢忠雷,陈卓,孙文田,等.不同茶园茶叶氟含量及土壤氟的形态分布[J].吉林大学学报(地球科学版),2008(2):293-298.
[19]刘璇,梁秀娟,肖霄,等.pH对吉林西部湖泊底泥中不同形态氟迁移转化影响的实验研究[J].环境污染与防治,2011,33(6):19-22.
[20]薛粟尹,李萍,王胜利,等.干旱区工矿型绿洲城郊农田土壤氟的形态分布特征及其影响因素研究——以白银绿洲为例[J].农业环境科学学报,2012,31(12):2407-2414.
[2]谢正苗,吴卫红,徐建民.环境中氟化物的迁移和转化及其生态效应[J].环境科学进展,1999(2):41-54.
[3]Delrazo,L.M.,J.C.Corona,G.Garciavargas,et al.Fluoride levels in well-water from a chronic arsenicism area of northern Mexico[J].Environmental Pollution,1993,80(1):91-94.
[4]焦有,宝德俊,尹川芬.氟的土壤地球化学[J].土壤通报,2000(6):251-254,286.
[5]杨军耀.水——土系统氟迁移影响因素分析[J].工程勘察,1998(3):44-46.
[6]杨勇,郭华明.大同盆地地下水环境演化分析[J].岩土工程技术,2003(2):107-111.
[7]王焰新,苏春利,谢先军,等.大同盆地地下水砷异常及其成因研究[J].中国地质,2010,37(3):771-780.
[8]桂建业,韩占涛,张向阳,等.土壤中氟的形态分析[J].岩矿测试,2008,110(4):284-286.
[9]Gao,X.B.,Y.X.Wang,Y.Li,et al.Enrichment of fluoride in groundwater under the impact of saline water intrusion at the salt lake area of Yuncheng basin,northern China[J].Environmental Geology,2007,53(4):795-803.
[10]黄春雷,丛源,陈岳龙,等.晋南临汾-运城盆地土壤氟含量及其影响因素[J].地质通报,2007,146(7):878-885.
[11]于群英,慈恩,杨林章.皖北地区土壤中不同形态氟含量及其影响因素[J].应用生态学报,2007(6):1333-1340.
[12]Li,J.,Y.X.Wang,X.Xie,et al.Hierarchical cluster analysis of arsenic and fluoride enrichments in groundwater from the Datong basin,Northern China[J].Journal of Geochemical Exploration,2012,118:77-89.
[13]Xie,X.,Y.X.Wang,M.Duan,et al.Sediment geochemistry and arsenic mobilization in shallow aquifers of the Datong basin,northern China[J].Environmental Geochemistry and Health,2009,31(4):493-502.
[14]Guo,Q.,Y.X.Wang,T.Ma,et al.Geochemical processes controlling the elevated fluoride concentrations in groundwaters of the Taiyuan basin,Northern China[J].Journal of Geochemical Exploration,2007,93(1):1-12.
[15]Guo,H.M.,Y.X.Wang.Geochemical characteristics of shallow groundwater in Datong basin,northwestern China[J].Journal of Geochemical Exploration,2005,87(3):109-120.
[16]Xie,X.,Y.X.Wang,C.Su,et al.Arsenic mobilization in shallow aquifers of Datong Basin:Hydrochemical and mineralogical evidences[J].Journal of Geochemical Exploration,2008,98(3):107-115.
[17]Wang,Y.,S.L.Shvartsev,C.So.Genesis of arsenic/fluoride-enriched soda water:A case study at Datong,northern China[J].Applied Geochemistry,2009,24(4):641-649.
[18]谢忠雷,陈卓,孙文田,等.不同茶园茶叶氟含量及土壤氟的形态分布[J].吉林大学学报(地球科学版),2008(2):293-298.
[19]刘璇,梁秀娟,肖霄,等.pH对吉林西部湖泊底泥中不同形态氟迁移转化影响的实验研究[J].环境污染与防治,2011,33(6):19-22.
[20]薛粟尹,李萍,王胜利,等.干旱区工矿型绿洲城郊农田土壤氟的形态分布特征及其影响因素研究——以白银绿洲为例[J].农业环境科学学报,2012,31(12):2407-2414.