| 环鄱阳湖区蔬菜地土壤中有机氯农药分布特征及生态风险评价 |
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| 引用本文： | 胡春华,周文斌,易纯,肖化云,王毛兰.环鄱阳湖区蔬菜地土壤中有机氯农药分布特征及生态风险评价[J].农业环境保护,2011(3):487-491. |
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| 作者姓名： | 胡春华 周文斌 易纯 肖化云 王毛兰 |
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| 作者单位： | [1]南昌大学鄱阳湖环境与资源利用教育部重点实验室,南昌330029 [2]南昌大学环境与化学工程学院,南昌330031 [3]中国科学院地球化学研究所,贵阳550002 |
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| 基金项目： | 国家水体污染控制与治理科技重大专项（2008zx07526-008-03）;国际科技合作资助项目（2006DFB91920）;“十一五”国家科技支撑计划重点项目（2007BAB23C02）;国家自然科学基金（40672159）;中国经济改革实施技术援助项目（支援期TCC5jxspyhzxh09-03） |
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| 摘 要： | 利用GC-ECD对环鄱阳湖区11个县市蔬菜地土壤中有机氯农药测定的数据,研究蔬菜地土壤中有机氯农药残留状况,并进行生态风险评价。结果显示,蔬菜地土壤中HCHs、DDTs、氯丹和六氯苯均有检出,且DDTs、HCHs的残留量较高,总有机氯农药含量范围为2.39～47.28μg·kg-1。从整体上分析,处于工业分布区域的土壤中有机氯农药含量高于其他区域。有机氯农药组成特征研究表明,该地区土壤中除个别采样点有机氯农药主要来自于早期残留外,大部分地区有新的污染源输入。与国内其他地区蔬菜地土壤相比,环鄱阳湖区蔬菜地土壤中有机氯农药含量较低。生态风险分析显示,环鄱阳湖区蔬菜地土壤中HCHs残留对于土壤生物的风险较低,而DDTs可能对鸟类和土壤生物具有一定的生态风险。
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| 关 键 词： | 有机氯农药 蔬菜地土壤 生态风险评价 环鄱阳湖区 |
Distribution and Eco-risk Evaluation of Organ Chlorine Pesticides in Vegetable Soil in the Area Around Poyang Lake, China |
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| HU Chun-hua,ZHOU Wen-bin YI Chun,XIAO Hua-yun,WANG Mao-lan.Distribution and Eco-risk Evaluation of Organ Chlorine Pesticides in Vegetable Soil in the Area Around Poyang Lake, China[J].Agro-Environmental Protection,2011(3):487-491. |
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| Authors: | HU Chun-hua ZHOU Wen-bin YI Chun XIAO Hua-yun WANG Mao-lan |
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| Institution: | 1.Key Lab of Lake Ecology and Bio-resource Utilization of Poyang Lake, Ministry of Education, Nanchang University, Nanchang 330029, China; 2.School of Environmental and Chemical Engineering, Nanchang University, Nanchang 330031, China; 3.Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China) |
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| Abstract: | The organochlorine pesticide residue in vegetable soil and its ecological risk were evaluated within 11 counties and cities around the Poyang Lake. The results showed that HCHs,DDTs,Chlordane ,HCB could be detected in the samples from vegetable soil, and the residual concentrations of DDTs and HCHs were especially higher. According to the distribution of OCPs components, which ranged from 2.39- 47.28 μg·kg^-1, the higher concentrations of total OCPs could be found in the industrial regions. Contamination of OCPs in soils in the area around the Poyang Lake were relatively lower than other areas. The eco-risk analysis showed that HCHs residues in the soils had no obvious influence on the geobiont there, while DDTs might have certain ecological risks on birds and geobiont. |
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| Keywords: | organ chlorine pesticides vegetables soil eco-risk evaluation Poyang Lake area |
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