ZHANG Jia-chun,LIN Shao-xia,ZHANG Qing-hai,et al.Characteristics of Heavy Metal Pollution in Crops and Soil around Caohai Wetland in Guizhou Province[J].Research of Soil and Water Conservation,2014,21(03):273-278.
贵州草海湿地周边耕地土壤与农作物重金属污染特征
- Title:
- Characteristics of Heavy Metal Pollution in Crops and Soil around Caohai Wetland in Guizhou Province
- 分类号:
- X131.3
- 摘要:
- 采集草海湿地周边主要农作物可食部分及对应根系的土壤样品，分析测试了重金属Cd，Cr，Hg，Pb，As和Zn的含量，对比研究了土壤和作物中重金属污染水平及对重金属的富集能力。结果表明：土壤重金属元素Zn，As，Cr平均含量未超过贵州省土壤元素背景值，其他3种重金属Pb，Cd，Hg平均值分别是背景值的1.24，1.44，7.5倍；与中国《食品中污染物限量》标准相比，除Hg平均含量超标外，蔬菜中As，Cr，Zn，Cd和Pb平均含量处在可接受范围内。6种重金属的单因子污染指数的高低依次是Hg > Pb > Cd > As > Cr > Zn，葱和萝卜处于安全水平，其余农作物处于警戒线；不同种类作物中重金属富集特征差异较大，菠菜对As，Cd，Hg，Pb的富集系数比其余作物高，萝卜叶对Cr和Zn的富集能力较强，重金属Cr富集系数最低的是玉米，Zn和Hg富集系数最低的是萝卜根，Cd和Pb富集系数最低为马铃薯，As富集能力最低的为白菜。
- Abstract:
- The edible parts of main crops and the corresponding root-zoning soil samples around the part of wetland in Caohai were collected to analyze and test the contents of Cd, Cr, Hg, Pb, As and Zn, and the enrichment abilities on heavy metals in test crops and the pollution level of heavy metals in soils and crops were studied and contrasted. The results showed that the average contents of soil heavy metal Zn, As, Cr did not exceed the background values in soils in Guizhou Province, the average values of other 3 kinds of heavy metals Pb, Cd, Hg were 1.24, 1.44, 7.5 times of the background values; compared with the standard of ‘China Food Contaminants’, the average content ranges of As, Cr, Zn, Cd and Pb in vegetables were acceptable. The level of single factor pollution about six kinds of heavy metals decreases in the order Hg > Pb > Cd > As > Cr > Zn, the levels of these metal in onions and radishes are at the safe level, other crops in a cordon line; the enrichment characteristics of heavy metals of different types of crops were obviously different, the enrichment coefficients of Cd, Hg, As, Pb in spinach are higher than other crops, the accumulation ability of heavy metals on Cr and Zn of radish leaves were stronger, the enrichment coefficients of Cr in maize was the lowest, the enrichment coefficient of Zn and Hg in the radish root is lowest, the enrichment coefficients of Cd and Pb in potato was the lowest, the enrichment coefficients of As in cabbage is the lowest.
参考文献/References:
[1] 吕烈武,郭彬,漆智平.海南省万宁市水稻土重金属污染的初步研究[J].热带作物学报,2009(7):1023-1027.
[2] 潘根兴,Chang A C, Page A L.土壤-作物污染物迁移分配与食物安全的评价模型及其应用[J].应用生态学报,2002,13(7):854-858.
[3] 于磊,张柏.基于GIS的黑土区农业地球化学环境质量综合评价研究[J].水土保持研究,2007,14(12):421-424.
[4] 董霁红,卞正富,王贺封,等.徐州矿区充填复垦场地作物重金属含量研究[J].水土保持学报,2007,21(5):180-182.
[5] 严连香,黄标,邵学新,等.锌铬复合胁迫对水稻植株碳氮代谢的影响[J].水土保持研究,2008,15(5):149-152.
[6] 梅凡民,陈敏,朱海波.西安市不同灌溉类型农田土壤重金属污染状况研究[J].水土保持研究,2008,15(1):223-226.
[7] 任晓冬,黄明杰.草海流域综合管理研究[J].生态经济,2008,20(5):147-151.
[8] 林绍霞,张清海,郭媛,等.贵州草海沉积物重金属污染特征及潜在生态风险分析[J].农业环境科学学报2012,31(11):2236-2241.
[9] 丁玉娟,林昌虎,何腾兵,等.贵州草海耕地土壤重金属污染特征及安全评价[J].贵州科学2013,31(2):47-51.
[10] 卫四涛,林昌虎,何腾兵,等.草海湖区耕地土壤HCHs、DDTs农药残留状况分析[J].贵州科学,2013,31(2):52-55.
[11] 蔡晓玲,黄小柱,廖德平.草海国家级自然保护区耕地土壤化学性质分析[J].内蒙古农业科技,2010(3):60-61.
[12] 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,1990:330-381.
[13] 宋春然,何锦林,谭红,等.贵州农业土壤重金属污染的初步评价[J].贵州农业科学,2005,33(2):13-16.
[14] NY/T391-2000,绿色食品:产地环境技术条件[S].北京:中国标准出版社,2000.
[15] 许嘉琳,杨居荣.陆地生态系统中的重金属[M].北京:中国环境科学出版社,1995.
[16] 丁真真.中国农田土壤重金属污染与其植物修复研究[J].水土保持研究2007,14(3):19-21.
[17] GB2762-2005,食品中污染物限量[S].北京:中国标准出版社,2005.
[18] GB18406.1-2001,农产品安全质量无公害蔬菜安全要求[S].北京:中国标准出版社,2005.
[19] 胡省英,冉伟彦,范宏瑞.土壤-作物系统中重金属元素的地球化学行为[J].地质与勘探,2003,39(5):84-87.
[20] 荆旭慧,李恋卿,潘根兴.不同环境下土壤作物系统中重金属元素迁移分配特点[J].生态环境,2007,16(3):812-817.
[21] 毛岭峰,彭培好,陈文德.重庆地区主要作物重金属富集特征[J].生态学杂志,2009,28(6):1117-1122.
[22] 南忠仁,李吉均,张建明,等.白银市区土壤作物系统重金属污染分析与防治对策研究[J].环境污染与防治,2002,24(3):170-173.
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备注/Memo
收稿日期:2013-10-09;改回日期:2013-10-29。
基金项目:贵州省教育人才省长资金项目：草海流域农业环境污染研究与农产品质量安全评价（黔省专合字[2011]16号）
作者简介:张家春(1988-),男,福建三明人,硕士研究生,研究方向:土壤化学与环境。E-mail:zhangjiachun198806@163.com
通讯作者:林昌虎(1961-),男,贵州盘县人,研究员,研究方向:土壤侵蚀与水土保持研究、农产品质量安全。E-mail:linchanghu79@sina.com