摘要
[目的]通过对新疆农田土壤重金属含量情况的初步调查与评价,掌握农田土壤环境质量状况,为新疆农业的健康发展提供参考.[方法]参考国家土壤环境质量二级标准（GB15618-1995）,使用单项污染指数法和综合污染指数法,分析全疆163个农产品产地664个土壤样品重金属测试结果.[结果]新疆农田土壤6种重金属（Hg、Cd、Pb、As、Cr、Cu）含量均低于国家土壤环境质量二级标准限值,其单项污染指数平均值为0.13,变化范围为0.00 ～0.89;尼梅罗综合污染指数平均值为0.20,变化范围为0.07 ～0.66,均为污染等级划分中的安全等级.[结论]新疆农田土壤重金属含量不存在超标的情况,环境质量总体良好,是发展绿色食品和有机食品产业的优势产地.同时也有部分农田土壤重金属存在潜在污染风险,应注意重金属污染源的控制和土壤重金属污染的监测.
[Objective] Through the preliminary investigation and evaluation of the heavy metal content in soil,we mastered the farmland soil environmental quality,aiming to provide recommendations for the healthy development of agriculture in Xinjiang.[Method] The National Soil Environmental Quality Standard （The second level） was referred,single pollution index and integrated pollution index method were used to analyze 664 soil samples heavy metal test results from 163 agricultural producing area of Xinjiang.[Result] The six kinds of heavy metals （Hg,Cd,Pb,As,Cr,Cu） levels of Xinjiang farmland soil were lower than the second national soil environmental quality standard limit,and its single pollution index average was 0.13 with a range of 0.00-0.89 ; Nepal Mero integrated pollution average index was 0.20 with a range of 0.07-0.66,which was within the level of security classification.[Conclusion] Farmland soil heavy metals are not out of the standard and the environmental quality is generally good,which is advantageous origin for the development of green food and organic food industry.Also part of the farmland soil has heavy metals potential of contamination risk; we should pay attention to the heavy metal pollution source control and soil heavy metal pollution monitoring.
出处
《新疆农业科学》
CAS
CSCD
北大核心
2014年第9期1760-1764,共5页
Xinjiang Agricultural Sciences
基金
国家测土配方施肥补贴项目
关键词
重金属
农产品
土壤
评价
农田土壤
heavy metal
agricultural product
soil
evaluation
farm land soil
