| 岷江下游（五通桥段）土壤污染特征及生态风险评价 |
| |
| 引用本文： | 简毅,杨万勤,张健,杜波,林静,王奥,周利强.岷江下游（五通桥段）土壤污染特征及生态风险评价[J].农业环境科学学报,2009,28(2). |
| |
| 作者姓名： | 简毅 杨万勤 张健 杜波 林静 王奥 周利强 |
| |
| 作者单位： | 四川农业大学林业生态工程重点实验室,四川,雅安,625014 |
| |
| 基金项目： | 国家重大科技支撑计划课题，国家自然科学基金，四川省青年科技基金，四川省重点科技攻关项目，四川农业大学人才引进项目 |
| |
| 摘 要： | 为了解岷江下游(五通桥段)土壤污染特征及其生态风险,采用野外采样及室内测试方法分析了岷江下游(五通桥段)103个土壤样品中的农药残留量和重金属含量.结果表明,全部样品中六六六(HCHs)含量符合国家二级标准(500 μg·kg-1),大部分样品中滴滴涕(DDTs)含量符合国家二级标准,有机磷农药(OPPs)杀螟硫磷(60.40%)和溴硫磷(55.45%)超标率较高,重金属Cd的地积累指数高达2.79.有机氯农药(OCPs)禁用20 a后在区内的降解程度较高,OPPs在土壤中的大最残留是由于农药的无序使用,外源输入是导致重金属污染的主要原因.区内农药残留和重金属污染范围广,复合污染较严重,存在较大的生态风险.
|
| 关 键 词： | 岷江下游 土壤 农药残留 重金属 复合污染 生态风险评价 |
Characteristics and Ecological Risk of Soil Pollution in the Lower Reaches(Wutongqiao Section)of Minjiang River |
| |
| JIAN Yi,YANG Wan-qin,ZHANG Jian,DU Bo,LIN Jing,WANG Ao,ZHOU Li-qiang.Characteristics and Ecological Risk of Soil Pollution in the Lower Reaches(Wutongqiao Section)of Minjiang River[J].Journal of Agro-Environment Science( J. Agro-Environ. Sci.),2009,28(2). |
| |
| Authors: | JIAN Yi YANG Wan-qin ZHANG Jian DU Bo LIN Jing WANG Ao ZHOU Li-qiang |
| |
| Institution: | Key Lab of Forestry Ecological Engineering;Sichuan Agricultural University;Ya'an 625014;China |
| |
| Abstract: | Soil pollution characterized by residual pesticides and heavy metal contamination is limiting the agricultural clean production and still threatening the health and survival of human beings,as a consequence of which much attentions have been given to the pollution charac-teristics and the ecological risks of residual pesticides and heavy metal in soils of different regions worldwide.As yet,little is known about the characteristics of soil pollution and its ecological risk in the lower reaches of Minjiang Ri... |
| |
| Keywords: | the lower reaches of Minjiang River soil residual pesticides heavy metals complex pollution ecological risk assessment |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《农业环境科学学报》浏览原始摘要信息 |
| 点击此处可从《农业环境科学学报》下载免费的PDF全文 |
|
