区域土壤环境质量的可拓物元评价

为了更加客观评价区域土壤环境质量，使土地资源得到合理规划和利用，将物元法引入土壤环境质量评价体系中，构建土壤环境质量评价的物元模型。通过实地土壤取样、测量，用物元分析法得出土壤中各种影响因子对一定区域内土壤环境质量的影响程度。实验结果表明：评价区内土壤中Cu含量为II级，其他重金属含量均符合I级标准，综合土壤环境质量评级结果为I级，具体等级值为1.342，即精确的等级是介于I级和II级之间，更偏重于I级。该评价方法可以科学、有效地应用监测数据，评价结果较为可信，能较科学地判定土壤环境质量级别，同时也可反映各污染因子对土壤环境质量的影响程度，并对污染程度加以区分和量化。

Extension Matter-element Evaluation of Regional Soil Environment Quality

In order to evaluate regional soil quality objectively,and land resources were planed and used rationally,matter-element model was introduced into the soil environment quality comprehensive evaluation,and the matter element model of the soil evaluation quality Evaluation was built.Through soil sampling and measuring,the effects of various factors on soil quality were analyzed with in a certain area with the matter-element method.The results indicated that Cu content was class II,other heavy metals was Class I in the evaluation area,the result of integrated soil environmental quality was Class I,the specific level was 1.342.In other words,the exact level was between Class I and Class II,more emphasis on I level.The assessment method was feasible,and could also detect the soil environmental grades scientifically.The effects of different pollution factors on soil environmental quality could be estimated,and the pollution grades could be divided and evaluated.