摘要
文章利用生态风险指数法,对内蒙古乌梁素海表层沉积物进行了生态风险研究。结果表明,乌梁素海表层沉积物重金属的生态风险由大由小依次为:Hg>Cd>As>Cu>Pb>Cr>Zn,Hg和Cd的生态风险远远大于其它金属。乌梁素海不同区域生态风险大小不同,湖区西部和北部较大,东部和南部较小,这与自然因素和人为活动有关。乌梁素海底泥由于具有重金属污染风险,因此作为农田肥料要慎重使用。
The ecological risk of the sediments of the Wuliangshuhai Lake was studied with the Hakanson potential risk index. The results show that the potential risk index of heavy metals in the sediment decreases as follows ： Hg 〉 Cd 〉 As 〉 Cu 〉 Pb 〉 Cr 〉 Zn. Hg and Cd are the most hazardous elements. Ecological risks are different in different region：the western and northern areas are bigger than the eastern and southern areas. This is related to natural factors and human activities. The sediments of the Wuliangshuhai Lake should be used carefully as farmland fertilizer due to the contamination risk of heavy metals.
出处
《水文地质工程地质》
CAS
CSCD
北大核心
2008年第3期118-122,共5页
Hydrogeology & Engineering Geology
基金
内蒙古河套农业经济区生态地球化学调查项目(200414200005)
关键词
沉积物
重金属
生态风险
乌梁素海
sediment
heavy metal
ecological risk
Wuliangshuhai Lake
