中文摘要：

土壤重金属污染程度具有不确定性，本文尝试将可拓学中的物元法引入土壤重金属污染评价中，构建了土壤环境质量评价的物元模型。以郑州黄河滩地为研究对象，进行了土壤采样和测试，并选用Cd、Hg、As、Cu、Pb和cr共6项作为土壤重金属污染评价指标。结果表明：黄河滩区土壤污染等级处于清洁和污染之间，污染度较低。该评价方法可以科学、有效地处理监测数据，评价结果较为可信；能较科学地判定土壤重金属污染等级，并对污染程度加以区分和量化，可以消除评价过程中人为因素的影响，提高评价精度，是进行土壤重金属污染评价的理想方法。

英文摘要：

The degree of soil heavy metal pollution has uncertainty. This paper attempted to establish soil evaluation quality model based on the matter-element theory. The Yellow River beach of Zhengzhou was taken as the study region, soil samples were collected and six heavy metals of Cd, Hg, As, Cu, Pb and Cr were measured for evaluation. The results showed that： soil pollution levels in the Yellow River beach were between the clean and pollution, which suggested the pollution was low. The evaluation method could deal with monitoring data more scientifically and effectively and the evaluation of the results was more credible. It could also scientifically determine the level of heavy metal pollution of soil, distinguish and quantify the degree of pollution and avoid the subjectivity in evaluation process. Therefore, the evaluation method based on the extension matter-element theory is an efficient new method in assessing soil heavy metal pollution.