中文摘要：

对沈阳农业大学后山棕壤肥料长期定位试验地，经过28年不同施肥处理土壤的8种重金属元素（Ca、Cr、Cu、Ni、Pb、Zn、Hg、As）含量进行测定，并以该区土壤环境质量背景值和GB15618—1995土壤环境质量标准二级标准为标准，利用单项污染指数法和尼梅罗综合污染指数法进行评价。结果表明：以背景值为准，各小区的8种重金属的含量均有上升趋势，综合评价结果为P综合=29．64，受Pb的影响总体累积程度很高；按照二级标准，Cd是8种重金属中唯一超标的元素，P值在2．25—2．64之间，其他元素P值范围是0．01-0．61，均未超标。从全区总体来看，综合评价结果为P综合=1．72，达到中度污染，应引起重视。

英文摘要：

The object of this study was to determinate contents of the eight heavy metals （Cd, Cr, Cu, Ni, Pb, Zn, Hg, As） in 12 soil fertilization treatments in Shenyang Agricultural University brown soil long-term experiments. Evaluate was made depending on the local soil environmental quality background values and the GB15618-1995 secondary soil environmental quality standards. The soil environmental quality evaluation was made with individual polluting factor index method and MEANS integrated polluting index method. The results indicated that depending on the background values, the contents of eight heavy metals in every group increased. The integrated pollution index was P=29.64. Affected by high lead level, the enrichment had high value. Depending on secondary standards, cadmium was the only overweight element of the eight metals, with P values between 2.25 to 2.64. The P values of the other elements were between 0.01 to 0.61. For the overall area, the integrated pollution index was P=1.72, medium pollution level.