在线阅读 --自然科学版 2016年2期《临汾盆地农田褐土剖面重金属的分布迁移特征》
临汾盆地农田褐土剖面重金属的分布迁移特征--[在线阅读]
李向宏1, 王艳红2, 郑国璋1,3
1. 山西师范大学 地理科学学院, 山西 临汾 041004;
2. 临汾市经济技术开发区第一中学, 山西 临汾 041000;
3. 中国科学院 地球环境科学研究所 黄土与第四纪地质国家重点实验室, 陕西 西安 710075
起止页码: 168--171页
DOI: 10.13763/j.cnki.jhebnu.nse.2016.02.014
摘要
通过对临汾盆地农田褐土剖面土壤样品的采集和测试,系统分析重金属Cd,Pb,Cr在土壤剖面中的垂直分布和淋滤迁移特征.结果表明:在长期灌溉耕作的条件下,Cd,Pb在耕作层富积不明显,具有从耕作层向土壤下层递增的趋势;Cr在耕作层富积明显,具有从耕作层向土壤下层递减的趋势;Cr的垂直分布特征与土壤有机质含量呈极显著正相关,Cd,Pb,Cr的垂直分布特征与土壤粒度呈显著正相关.褐土剖面重金属的淋失率具有Cd >Pb >Cr的特征,Cd对地下水安全威胁最大;Pb,Cr在土壤表层含量较高时,均可向土壤下层淋滤迁移威胁地下水安全.

Distribution and Migration Characteristics of Heavy Metal Elements in Profile of Cinnamon Soil in Farmland of Linfen Basin
LI Xianghong1, WANG Yanhong2, ZHENG Guozhang1,3
1. Geography Science College, Shanxi Normal University, Shanxi Linfen 041004, China;
2. First Secondary School in the Economic and Technological Development Zone in Linfen City, Shanxi Linfen 041000, China;
3. State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Shaanxi Xi'an 710075, China
Abstract:
Based on the measurements of soil samples collected from Linfen Basin,vertical distribution and leaching migration of Cd,Pb and Cr in profile of cinnamon soil in farmland are investigated.The results indicate that Cd and Pb enrichment in cultivated layer is not obvious under the condition of long-term irrigation farming,and Cd and Pb contents tend to increase from cultivated layer to lower layer.The element Cr tends to be concentrated in cultivated layer,and Cr content tends to decrease from cultivated layer to lower layer.Vertical distribution characteristics of Cr are significantly positively correlated to soil organic matter content,while vertical distribution characteristics of Cd,Pb and Cr are significantly positively correlated to soil particle size.The water washing coefficient of heavy metals is characterized by Cd > Pb > Cr.The water washing coefficient of Cd is the highest,which threatens groundwater environmental security seriously. When the contents of heavy metals Pb and Cr are high in the surface soil,they can eluviate and migrate towards the underlying layer,thus threatening groundwater safety.

收稿日期: 2014-10-29
基金项目: 山西师范大学科技开发与应用基金(ZK1402); 中国科学院地球环境科学研究所黄土与第四纪地质国家重点实验室开放基金(SKLLQG1023); 山西省软科学研究计划项目(2008041032-03)

参考文献:
[1]王国梁,周生路,赵其国,等.菜地土壤剖面上重金属元素含量随时间的变化规律研究[J].农业工程学报,2006,22(1):79-84.doi:10.3321/j.issn:1002-6819.2006.01.017
[2]周生路,廖富强,吴绍华.宜兴典型农用地土壤剖面重金属元素含量研究[J].科学通报,2008,53(S1):153-161.doi:10.3321/j.issn:0023-074X.2008.z1.015
[3]孙强,马腾,祁志冲,等.污水灌溉区包气带中重金属元素空间分布特征——以太原市某污水灌溉区为例[J].地质科技情报,2010,29(3):86-90.doi:10.3969/j.issn.1000-7849.2010.03.013
[4]王鹏,赵志忠,王军广,等.海南岛西南干旱区土壤中重金属元素的空间分布特征[J].江苏农业科学,2011,39(6):558-560.doi:10.3969/j.issn.1002-1302.2011.06.220
[5]项萌,张国平,李玲.广西铅锑矿冶炼区土壤剖面及孔隙水中重金属污染分布规律[J].环境科学,2012,33(1):266-272.
[6]MAPANDA F,MANGWAYANA E N,NYAMANGARA J,et al.The Effect of Long-term Irrigation Using Wastewater on Heavy Metal Contents of Soils Under Vegetables in Harare,Zimbabwe[J].Agriculture,Ecosystems and Environment,2004,107(2):151-165.doi:10.1016/j.agee.2004.11.005
[7]MUCHUWETI M,BIRKETT J W,CHINYANGA E,et al.Heavy Metal Content of Vegetables Irrigated with Mixtures of Wastewater and Sewage Sludge in Zimbabwe:Implications for Human Health[J].Agriculture,Ecosystems and Environment,2005,112(1):41-48.doi: 10.1016/j.agee.2005.04.028
[8]MANI D,SHARMA B,KUMAR C,et al.Depth-wise Distribution,Mobility and Naturally Occurring Glutathione Based Phytoaccumulation of Cadmium and Zinc in Sewage-irrigated Soil Profiles[J].Int J Environ Sci Technol,2013,10(6):1167-1180.doi:10.1007/s13762-012-0121-z
[9]DANIEL G,HICKEY P J,MCDANIEL P A,et al.Distribution of As,Cd,Pb,and Zn in Redox Features of Mine-waste Impacted Wetland Soils[J].J Soils Sediments,2012,12:1100-1110.doi:10.1007/s11368-012-0543-8
[10]易秀.黄土类土对铬、砷的净化机理及地下水防污安全埋深的研究[D].西安:长安大学,2003.
[11]曹淑萍.重金属污染元素在天津土壤剖面中的纵向分布特征[J].地质找矿论丛,2004,19(4):270-274.doi:10.3969/j.issn.1001-1412.2004.04.010
[12]陈高武.重庆都市圈土壤重金属元素迁移富集及生态效应研究[D].成都:成都理工大学,2008.
[13]南忠仁,李吉均.干旱区耕作土壤中重金属镉铅镍剖面分布及行为研究——以白银市区灰钙土为例[J].干旱区研究,2000,17(4):39-45.
[14]杨军,郑袁明,陈同斌,等.中水灌溉下重金属在土壤中的垂直迁移及其对地下水的污染风险[J].地理研究,2006,25(3):449-456.doi:10.3321/j.issn.1000-0585.2006.03.010
[15]郑国璋.关中娄土剖面中重金属元素的垂直分布规律研究[J].地球学报,2008,29(1):109-115.doi:10.3321/j.issn.1006-3021.2008.01.014
[16]程红艳,谢英荷.绿色食品产地土壤环境质量分区的研究——以山西省临汾市为例[J].山西农业大学学报,2005,25(3):257-260.
[17]程红艳.临汾市农业土壤中重金属元素分析与评价[M].北京:中国农业科学技术出版社,2007.
[18]董飞,卢瑛,王兴祥,等.华南地区不同品系水稻积累砷特征及其影响因素[J].农业环境科学学报,2011,30(2):214-219.
[19]王敏霞,常喜玲.静宁县耕地土壤养分测定结果初报[J].甘肃农业科技,2011(1):43-45.doi:10.3969/j.issn.1001-1463.2011.01.017
[20]吉艳芝,刘辰琛,巨晓棠,等.根层调控对填闲作物消减设施蔬菜土壤累积硝态氮的影响[J].中国农业科学,2010,43(24):5063-5072.doi:10.3864/j.issn.0578-1752.2010.24.010
[21]董飞,卢瑛,闫秋艳,等.粤北铅锌矿周边稻田土壤砷含量及其与土壤基本理化性质的关系[J].安徽农业科学,2010,38(33):18807-18809,18811.doi:10.3969/j.issn.0517-6611.2010.33.073
[22]马智宏,王纪华,陆安祥,等.京郊不同剖面土壤重金属的分布与迁移[J].河北农业大学学报,2007,30(6):11-15.doi:10.3969/j.issn.1000-1573.2007.06.003