通过合理选择不同对照地，从土壤的理化性质、被污染程度比较，为尾矿库复垦的土壤改良提供依据。
The soil in copper-ore-tailings reservoir was compared with that in reference lands to find out the differences between them in physical and chemical natures and in heavy metals pollution.
研究结果表明，模糊聚类分析的方法可以客观、准确地反映水体环境单元污染程度的差异，是一种比较理想的聚类方法。
The result shows that this model is scientific and effective to reveal the difference of pollutant degree between the water enviroment units, which is an ideal method for cluster analysis.
将多污染因子评价归结于单目标决策，比较直观地反映出某区域环境空气质量综合水平及污染程度。
When the multi-ingredient pollution if transformed into the single-object decision, the results could directly show the integrative level and pollution degree of a certain area air quality.
应用推荐