The relationship between selected environmental variables and plant species composition was studied on two mineralogically different spoil heaps (Hg and Cu) in Central Slovakia with contrasting reclamation approaches. Data on plant species composition were collected by stratified random sampling in defined physiognomic vegetation types. A detrended correspondence analysis showed that most of the variability in species composition was related to the succession gradient from open communities with a low cover of vascular plants to forest vegetation, and to the moisture gradient. Variance partitioning by canonical correspondence analysis revealed that most of the variability in plant composition was related to the content of various heavy metals (27.8% at the Hg-spoil heap and 28.3% at the Cu-spoil heap), but a significant relationship was found only for Mn. Other significant factors comprised soil moisture, pH and P content for the Hg-spoil heap and soil temperature and Ca content for the Cu-spoil heap. Although heavy metal content explained most of the variability in species composition, the relationship was caused by the correlation of heavy metal content with other environmental variables rather than by a direct causal relationship.

利用对比的填海方法，对斯洛伐克中部两个矿物学上不同的弃渣堆（Hg和Cu）研究了所选环境变量与植物物种组成之间的关系。通过分层随机抽样收集定义的地貌植被类型的植物物种组成数据。趋势消除的对应分析表明，物种组成的大部分变异与维管植物覆盖率低的开放社区到森林植被的演替梯度以及湿度梯度有关。通过规范对应分析进行的方差划分显示，植物组成的大部分变异与各种重金属的含量有关（Hg-废渣堆中为27.8％，Cu-废渣堆中为28.3％），但仅对锰发现显着关系。其他重要因素包括土壤水分，Hg废料堆的pH和P含量以及Cu废料堆的土壤温度和Ca含量。尽管重金属含量解释了物种组成的大部分可变性，但这种关系是由于重金属含量与其他环境变量之间的相关性而不是直接的因果关系引起的。