某铀尾矿周边农田土壤中放射性~(137)Cs的分布特征
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摘要
采用高纯锗(HPGe)γ谱仪分析测定某铀尾矿库周边农田土壤样品中~(137)Cs的含量,研究农田土壤中放射性核素~(137)Cs的分布特征。结果表明,研究区尾矿库周边农田~(137)Cs的表层至地下1m处含量大多在农田边缘地区含量最高,在农田中心地区含量最低;~(137)Cs主要分布在土壤表层,在1m范围内随着深度增加含量减少;研究区农田植物、土壤对~(137)Cs的吸附有影响,~(137)Cs在垂直方向含量的规律不明显,这可能与土壤粒径大小、土壤pH、研究区域降水量以及与尾矿库水平距离相关。
137Cs contents in farmland soil samples around tails pond of uranium mine were measured and analyzed by High Purity Germanium(HPGe)γSpectrometer to investigate distribution characteristics of radionuclide ~(137)Cs.The results show that content of ~(137)Cs is highest in marginal area of farmland,while is lowest in central area of farmland.~(137)Cs mainly distributes in surface soil,and content of ~(137)Cs drops within range of 1 m.Soils in study area affect adsorption of ~(137)Cs,and content of ~(137)Cs is unstable in vertical direction,due to particle size and pH value of soil,local precipitation,and horizontal distance to uranium tailings pond.
137Cs contents in farmland soil samples around tails pond of uranium mine were measured and analyzed by High Purity Germanium(HPGe)γSpectrometer to investigate distribution characteristics of radionuclide ~(137)Cs.The results show that content of ~(137)Cs is highest in marginal area of farmland,while is lowest in central area of farmland.~(137)Cs mainly distributes in surface soil,and content of ~(137)Cs drops within range of 1 m.Soils in study area affect adsorption of ~(137)Cs,and content of ~(137)Cs is unstable in vertical direction,due to particle size and pH value of soil,local precipitation,and horizontal distance to uranium tailings pond.
引文
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[14]周文斌,史维浚.相山矿田铀的中和还原成矿作用[J].矿床地质,1996(4):351-357.
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[16]朱晓杰.铀矿山典型场地中铀分布特征及形成机理研究[D].江西抚州:东华理工大学,2013.
[17]杜洋,朱晓杰,高柏,等.铀矿山尾矿库区典型场地中铀的分布特征[J].有色金属(矿山部分),2014,66(1):5-9.
[18]姚高扬,华恩祥,高柏,等.南方某铀尾矿区周边农田土壤中放射性核素的分布特征[J].生态与农村环境学报,2015,31(6):963-966.
[19]李宾,周德庆,陆地,等.水产品中放射性铯检测技术的研究进展[J].食品工业科技,2013,34(17):369-372.
[20]张淑梅,刘平辉,魏长帅.江西某铀矿区土壤中Cr污染评价[J].东华理工大学学报(自然科学版),2016,39(2):174-177.
[21]国家环境保护局,中国环境监测总站.中国土壤元素背景值[M].北京:中国环境科学出版社,1990:87-88.
[22]杨明太.放射性核素迁移研究的现状[J].核电子学与探测技术,2005,25(6):878-883.
[23]杨巍,杨亚新,曹龙生,等.某铀尾矿库中放射性核素对环境的影响[J].东华理工大学学报(自然科学版),2011,34(2):155-159.
[2]张威,潘少明,张克新,等.中国大陆Cs-137背景值研究[J].地理学报,2015,70(9):1477-1490.
[3]梁家伟,戴全厚,张曦,等.137 Cs技术研究岩溶高原湿地小流域土壤侵蚀特征[J].核农学报,2014,28(1):116-122.
[4]魏复盛,陈静生,吴燕玉,等.中国土壤环境背景值研究[J].环境科学,1991,12(4):12-19.
[5]SANCHE N,ANJOS R M,MOSQUERA B.40 K/137 Cs discrimination ratios to the aboveground organs of tropical plants[J].Journal of Environmental Radioactivity,2008,99(7):1127-1135.
[6]XIONG Z Q,STRINGER J L.Cesium induces spontaneous epileptiform activity without changing extracellular potassium regulation in rat hippocampus[J].Journal of Neurophysiology,1999,82(6):3339-3346.
[7]黄万抚,李新冬.铯的用途与提取分离技术研究现状[J].稀有金属与硬质合金,2003,31(3):18-20.
[8]OMAR H A,ATTIA E B.Kinetic and equilibrium studies of cesium-137adsorption on olive waste from aqueous solutions[J].Radiochemistry,2013,55(5):497-504.
[9]刘红娟,唐泉,单健,等.环境中放射性铯的迁移进展研究[J].环境科学与管理,2014,39(12):50-54.
[10]ZIEMBIK Z,DOHAN C'ZUK S'RDKA A,KOMOSA A,et al.Assessment of 137Cs and 239,240Pu distribution in forest soils of the Opole Anomaly[J].Water,Air,&Soil Pollution,2010,206(1):307-320.
[11]梁艳,张成江,倪师军.不同pH值、不同比例的添加剂对土壤吸附铯的影响[J].四川环境,2007,26(5):5-7.
[12]李爽,倪师军,张成江,等.铯在土壤中的吸附性能研究[J].成都理工大学学报(自然科学版),2009,33(4):425-429.
[13]周秀丽.某铀矿区土壤放射性核素铀形态分布特征及其生物有效性研究[D].江西抚州:东华理工大学,2016.
[14]周文斌,史维浚.相山矿田铀的中和还原成矿作用[J].矿床地质,1996(4):351-357.
[15]邱爱金.江西相山铀矿田东西向隐伏构造的发现及其地质意义[J].地质论评,2001,47(6):637-641.
[16]朱晓杰.铀矿山典型场地中铀分布特征及形成机理研究[D].江西抚州:东华理工大学,2013.
[17]杜洋,朱晓杰,高柏,等.铀矿山尾矿库区典型场地中铀的分布特征[J].有色金属(矿山部分),2014,66(1):5-9.
[18]姚高扬,华恩祥,高柏,等.南方某铀尾矿区周边农田土壤中放射性核素的分布特征[J].生态与农村环境学报,2015,31(6):963-966.
[19]李宾,周德庆,陆地,等.水产品中放射性铯检测技术的研究进展[J].食品工业科技,2013,34(17):369-372.
[20]张淑梅,刘平辉,魏长帅.江西某铀矿区土壤中Cr污染评价[J].东华理工大学学报(自然科学版),2016,39(2):174-177.
[21]国家环境保护局,中国环境监测总站.中国土壤元素背景值[M].北京:中国环境科学出版社,1990:87-88.
[22]杨明太.放射性核素迁移研究的现状[J].核电子学与探测技术,2005,25(6):878-883.
[23]杨巍,杨亚新,曹龙生,等.某铀尾矿库中放射性核素对环境的影响[J].东华理工大学学报(自然科学版),2011,34(2):155-159.