文献类型：期刊文献

中文题名：西溪湿地土壤有机氯农药残留特征及风险分析

英文题名：Distribution and Risk Assessment of Organochlorine Pesticides in the Soils of Xixi Wetland Park.

作者：邵学新[1] 吴明[1] 蒋科毅[1]

第一作者：邵学新

机构：[1]中国林业科学研究院亚热带林业研究所国家林业局杭州湾湿地生态系统定位研究站

年份：2008

卷号：24

期号：1

起止页码：55-58

中文期刊名：生态与农村环境学报

外文期刊名：Journal of Ecology and Rural Environment

收录：CSTPCD;;Scopus;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；CSSCI:【CSSCI2008_2009】；

基金："十一五"科技攻关专题(2006BAD03A1904);国家湿地公园示范项目;浙江省重点科技攻关计划(2005C22072)

语种：中文

中文关键词：土壤;西溪湿地;HCH;DDT;残留水平;生态风险

外文关键词：soil; Xixi wetland; HCH; DDT; spatial distribution; risk assessment

分类号：X833

摘要：以首个国家湿地公园——西溪国家湿地公园为研究区域,对该地区土壤中有机氯农药HCH和DDT的残留特征和影响因素进行研究,探讨污染物的潜在来源,并对其生态风险进行分析。结果表明,西溪湿地土壤中HCH和DDT均有检出,∑HCHs平均含量为18.44 ng.g-1,∑DDTs平均含量为20.80 ng.g-1,二者在土壤中的残留差异不是很明显。HCH在柿园、竹园、芦苇滩地、菜地和其他5种利用类型土壤中的残留差异不大,而DDT在菜地土壤的残留高于其他4种类型。采样点土壤中∑HCHs和∑DDTs含量均低于GB 15618—1995土壤环境质量一级标准,与国内其他地区相比,西溪湿地土壤DDT残留较低,而HCH残留相对较高。生态风险分析显示,西溪湿地土壤中HCH残留对于土壤生物的风险较低,而DDT可能对鸟类和土壤生物具有一定的生态风险。
Distribution, potential sources and risks of organochlorine pesticides （ DDT and HCH） in the soils of the Xixi National Wetland Park were researched. Results show that HCH and DDT could be detected in all the topsoil samples. The ∑HCHs and ∑DDTs residues were similar with mean content being 18.44 ng·g^-1 and 20.80 ng·g^-1, respectively. HCH residues in the soils of persimmon orchards, bamboo gardens, bulrush bottomlands, vegetable farms and others were similar, while DDT residues in the soils of vegetable farm were higher than in the others. ∑ HCHs and ∑ DDTs in the soils were lower than the most stringent criteria （ the first grade criterion, 50 ng·g^-1 ） of the Soil Environmental Quality Standard of China （ GB 15618 - 1995 ）. In comparison with other places of the country, Xixi is relatively lower in DDTs, but higher in ∑ HCHs. The eco-risk analysis shows that HCH residues in the soils do not pose much risk to the geobiont therein, while DDTs do have some risk to the birds and geobiont.