广东省普宁市土壤硒的分布特征及影响因素研究
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摘要
开展了广东省普宁市区域土壤硒调查研究,采集了413个表层土壤样品(0～20 cm)和103个深层土壤样品(> 150 cm),测定了土壤全硒含量,据此研究土壤硒分布特征及其影响因素。结果表明,普宁市土壤全硒含量变化于0. 16～2. 01 mg/kg,平均值为0. 63 mg/kg,总体上处于中硒及高硒水平,不存在缺硒和硒过剩土壤。砂页岩风化形成的赤红壤全硒含量较高,平均值达0. 86 mg/kg,以侏罗系页岩母质发育的土壤全硒含量最高,平均值达0. 89 mg/kg;三角洲第四系沉积物发育形成的水稻土全硒含量最低,平均值为0. 41 mg/kg。回归分析表明,土壤全硒含量与铁铝含量、有机碳含量具有极显著正相关,与p H呈极显著负相关。影响普宁市土壤硒含量的主要因素是成土母质,土壤p H、有机碳和铁铝含量及土地利用方式对土壤全硒含量分布与富集也有一定的影响。
A systematic investigation of soil selenium in the region of Puning City was carried out,and 413 samples of surface soil( 0-20 cm) and 103 samples of deep soil( > 150 cm) were collected systematically and analyzed for content,distribution and influencing factors of soil Se. Results showed that the content of total selenium in the surface soils ranged from 0. 16 mg/kg to 2. 01 mg/kg with a mean value of 0. 63 mg/kg,which meant that the soils were in the category of Se sufficiency or Se abundance on the whole,with none in the category of Se deficiency or excessive Se. Among the different types of soils,total Se content was the highest in redsoil formed by sand shale,averaging 0. 86 mg/kg,and the lowest in paddy soils developed in delta sediments,averaging 0. 41 mg/kg. Among the different types of parent materials,the highest content was recorded in Jurassic shale with an average Se content of 0. 89 mg/kg,while the lowest in Quaternary sediment with an average of0. 41 mg/kg. Correlation and regression analysis showed that soil Se content was significantly and positively related to contents of iron and aluminum,soil total organic carbon( SOC),but negatively to soil p H. Soil parent material was the major factor influencing selenium concentration and distribution in the soil of Puning City,whereas land use,soil pH,SOC,iron and aluminum also played important roles.
A systematic investigation of soil selenium in the region of Puning City was carried out,and 413 samples of surface soil( 0-20 cm) and 103 samples of deep soil( > 150 cm) were collected systematically and analyzed for content,distribution and influencing factors of soil Se. Results showed that the content of total selenium in the surface soils ranged from 0. 16 mg/kg to 2. 01 mg/kg with a mean value of 0. 63 mg/kg,which meant that the soils were in the category of Se sufficiency or Se abundance on the whole,with none in the category of Se deficiency or excessive Se. Among the different types of soils,total Se content was the highest in redsoil formed by sand shale,averaging 0. 86 mg/kg,and the lowest in paddy soils developed in delta sediments,averaging 0. 41 mg/kg. Among the different types of parent materials,the highest content was recorded in Jurassic shale with an average Se content of 0. 89 mg/kg,while the lowest in Quaternary sediment with an average of0. 41 mg/kg. Correlation and regression analysis showed that soil Se content was significantly and positively related to contents of iron and aluminum,soil total organic carbon( SOC),but negatively to soil p H. Soil parent material was the major factor influencing selenium concentration and distribution in the soil of Puning City,whereas land use,soil pH,SOC,iron and aluminum also played important roles.
引文
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[17]刘铮.中国土壤微量元素[M].南京:江苏科学技术出版社,1996:330-332.
[18]谭见安.中华人民共和国地方病与环境图集[M].北京:科学出版社,1989:39.
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[21]李杰,杨志强,刘枝刚,等.南宁市土壤硒分布特征及其影响因素探讨[J].土壤学报,2012,49(5):1012-1020.
[22]张晓平,张玉霞.西藏土壤中硒的含量及分布[J].土壤学报,2000,37(4):558-562.
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[25]赵少华,宇万太,张璐,等.环境中硒的生物地球化学循环和营养调控及分异成因[J].生态学杂志,2005,24(10):1197-1203.
[26]田有国,姚艳敏,李小林,等. GB/T 17296—2009中国土壤分类与代码[S].北京:中国标准出版社,2009:2-5.
[27]雷志栋,杨诗秀,许志荣,等.土壤特性空间变异性初步研究[J].水利学报,1985(9):12-23.
[28]郦逸根,董岩翔,郑洁,等.浙江富硒土壤资源调查与评价[J].第四纪研究,2005,25(3):323-330.
[29] KAUSCH M F,PALLUD C E. Modeling the impact of soil aggregate size on selenium immobilization[J]. Biogeosciences,2013,10(3):1323-1336.
[30]朱建明,梁小兵,凌宏文,等.环境中硒存在形式的研究现状[J].矿物岩石地球化学通报,2003,22(1):75-81.
[31]李永华,王五一,杨林生,等.陕南土壤中水溶态硒、氟的含量及其在生态环境的表征[J].环境化学,2005,24(3):279-283.
[32] PAN Z,HE S,LI C,et al. Geochemical characteristics of soil selenium and evaluation of Se-rich land resources in the central area of Guiyang City,China[J]. Acta Geochimica,2017,36(2):1-10.
[33]商靖敏,罗维,吴光红,等.洋河流域不同土地利用类型土壤硒(Se)分布及影响因素[J].环境科学,2015,36(1):301-308.
[34] GOLDBERG S,LESCH S M,SUAREZ D L. Predicting selenite adsorption by soils using soil chemical parameters in the constant capacitance model[J]. Geochimica et Cosmochimica Acta,2007,71(23):5750-5762.
[35]吴文斌,杨鹏,唐华俊,等.土地利用对土壤性质影响的区域差异研究[J].中国农业科学,2007,40(8):1697-1702.
[36] QIN H B,ZHU J M,LIANG L,et al. The bioavailability of selenium and risk assessment for human selenium poisoning in highSe areas,China[J]. Environment International,2013,52(1):66-74.
[2] RAYMAN M P. The importance of selenium to human health[J]. Lancet,2000,356(5):233-241.
[3]张联合,郁飞燕,苗艳芳.硒在人和动物健康上的研究[J].安徽农业科学,2007,35(21):6688-6690.
[4] TAPIERO H,TOWNSEND D M,TEW K D. The antioxidant role of selenium and seleno-compounds[J]. Biomedicine and Pharmacotherapy,2003,57(3):134-144.
[5] PAPP L V,LU J,HOLMGREN A,et al. From selenium to selenoproteins:Synthesis,identity,and their role in human health[J]. Antioxidants and Redox Signaling,2007,9(7):775-806.
[6]马秀杰,张跃安.硒对人体健康影响研究进展[J].中国公共卫生,2009,25(8):1021-1023.
[7]李日邦,王立志.提高食物链硒通量防治大骨节病和克山病示范研究[J].地理学报,1999,54(2):158-164.
[8] RAYMAN M P. The argument for increasing selenium intake[J]. Proceedings of the Nutrition Society,2002,61(2):203-215.
[9] CHEN X,YANG G,CHEN J,et al. Studies on the relations of selenium and Keshan disease[J]. Biological Trace Element Research,1980,2(2):91-107.
[10] YANG G Q,WANG S Z,ZHOU R H,et al. Endemic selenium intoxication of humans in China[J]. American Journal of Clinical Nutrition,1983,37(5):872-881.
[11]姚林波,高振敏,龙洪波.分散元素硒的地球化学循环及其富集作用[J].地球与环境,1999,27(3):62-67.
[12]普宁市人民政府.普宁市概况[EB/OL].(2006—08—08)[2018-04-10]. http://www. puning. gov. cn/pngov/web/contentsShow. action? type=contents&contentsID=4040.
[13]徐文,唐文浩,邝春兰,等.海南省土壤中硒含量及影响因素分析[J].安徽农业科学,2010,38(6):3026-3027.
[14]章海波,骆永明,吴龙华,等.香港土壤研究Ⅱ.土壤硒的含量、分布及其影响因素[J].土壤学报,2005,42(3):404-410.
[15]郭莉,杨忠芳,阮起和,等.北京市平原区土壤中硒的含量和分布[J].现代地质,2012,26(5):859-864.
[16]迟凤琴,徐强,匡恩俊,等.黑龙江省土壤硒分布及其影响因素研究[J].土壤学报,2016,53(5):1262-1274.
[17]刘铮.中国土壤微量元素[M].南京:江苏科学技术出版社,1996:330-332.
[18]谭见安.中华人民共和国地方病与环境图集[M].北京:科学出版社,1989:39.
[19] JACQUELINE L S,STEVE P M,ZHAO F J. Selenium speciation in soil extracts using LC-ICP-MS[J]. International Journal of Environmental Analytical Chemistry,2012, 92(2):222-236.
[20]刘子宁,窦磊,游远航.珠江三角洲台山地区硒的地球化学特征[J].现代地质,2014,28(5):928-934.
[21]李杰,杨志强,刘枝刚,等.南宁市土壤硒分布特征及其影响因素探讨[J].土壤学报,2012,49(5):1012-1020.
[22]张晓平,张玉霞.西藏土壤中硒的含量及分布[J].土壤学报,2000,37(4):558-562.
[23]李家熙.人体硒缺乏与过剩的地球化学环境特征及其预测[M].北京:地质出版社,2000:54-57.
[24] RUDNICK R,GAO S. Composition of the continental crust[M]//HOLLAND H D,TUREKIAN K K. Treatise on Geochemistry. Amsterdam:Elsevier,2013:1-64.
[25]赵少华,宇万太,张璐,等.环境中硒的生物地球化学循环和营养调控及分异成因[J].生态学杂志,2005,24(10):1197-1203.
[26]田有国,姚艳敏,李小林,等. GB/T 17296—2009中国土壤分类与代码[S].北京:中国标准出版社,2009:2-5.
[27]雷志栋,杨诗秀,许志荣,等.土壤特性空间变异性初步研究[J].水利学报,1985(9):12-23.
[28]郦逸根,董岩翔,郑洁,等.浙江富硒土壤资源调查与评价[J].第四纪研究,2005,25(3):323-330.
[29] KAUSCH M F,PALLUD C E. Modeling the impact of soil aggregate size on selenium immobilization[J]. Biogeosciences,2013,10(3):1323-1336.
[30]朱建明,梁小兵,凌宏文,等.环境中硒存在形式的研究现状[J].矿物岩石地球化学通报,2003,22(1):75-81.
[31]李永华,王五一,杨林生,等.陕南土壤中水溶态硒、氟的含量及其在生态环境的表征[J].环境化学,2005,24(3):279-283.
[32] PAN Z,HE S,LI C,et al. Geochemical characteristics of soil selenium and evaluation of Se-rich land resources in the central area of Guiyang City,China[J]. Acta Geochimica,2017,36(2):1-10.
[33]商靖敏,罗维,吴光红,等.洋河流域不同土地利用类型土壤硒(Se)分布及影响因素[J].环境科学,2015,36(1):301-308.
[34] GOLDBERG S,LESCH S M,SUAREZ D L. Predicting selenite adsorption by soils using soil chemical parameters in the constant capacitance model[J]. Geochimica et Cosmochimica Acta,2007,71(23):5750-5762.
[35]吴文斌,杨鹏,唐华俊,等.土地利用对土壤性质影响的区域差异研究[J].中国农业科学,2007,40(8):1697-1702.
[36] QIN H B,ZHU J M,LIANG L,et al. The bioavailability of selenium and risk assessment for human selenium poisoning in highSe areas,China[J]. Environment International,2013,52(1):66-74.