中文摘要：

永康169个城市土壤X荧光光谱测试分析表明：Cu、Mn、Co、Fe、Cr、Pb、Ni、Ti八种重金属元素的平均含量超过金衢盆地土壤背景值,且以工业用地类样品的富集程度最高。永康城市土壤重金属污染水平呈整体较轻,局部严重态势;各重金属元素的离散程度均较大,Cu为强变异元素,变异系数为152.93%,其他元素也为中强变异,表明永康城市土壤重金属元素含量在研究区内有较大差异。多元统计分析表明,Cr、Ni、Cu、Pb、Mn等重金属元素主要来源于当地的五金制造等工业和交通运输的影响;Fe、Ti、Co来源主要与成土过程中元素的积累有关,其中Fe有部分来源于五金生产。

英文摘要：

The concentrations of heavy metal elements from 169 Urban soils samples in Yongkang city were measured by XRF, and the results showed that average contents of Cu, Mn, Co, Fe, Cr, Pb, Ni, Ti were higher than those of Zhejiang Jinhua-Quzhou basin natural soils, especially those samples from industrial regions. The contamination level of heavy metals in study areas was slight in total, but it was heavy in local areas. The dispersion degree of all the heavy metals was bigger, and their coefficients of variation （CV） were from medium to high level, especially Cu which had achieved the strong changeability, and CV value was 152.93%. This sufficiently showed the heavy metals were distributed unevenly in urban soils. The multivariate statistical analysis used to analyze the dates of the samples. The results indicated that Cr, Ni, Cu, Pb, Mn were mainly originated from industrial activity such as hardware and the traffic; Fe, Co, Ti mainly were contributed by the accumulation of elements during the process of soil formation, and Fe had a mixed sources, and the part of Fe came from hardware production.