The variability of selected biogenic elements in soils and leaves of three dominant plant species was studied in segments of Querci-Fageta typica and Fagi-Querceta typica forest ecosystems located near R1 Pribina highway in SW Slovakia. The amounts of nutrients (Mg, K, Na and Zn) in soils distant 30 m from the highway were mostly low and increased significantly with a depth of soil. On the other hand, the highest Ca concentrations were found in the surface humus horizons and decreased significantly with soil depth. The Mg, K and Zn contents found in soil mineral horizons 8000 m from the highway were more balanced than those found at 30 m from the highway. The nutrient content of plant leaves was mostly significantly higher at a distance of 30 m from the highway than 8000 m from the highway, for Ca (Prunus spinosa, Melica uniflora), Mg (P. spinosa), Na (Quercus cerris, P. spinosa) and Zn (Q. cerris, M. uniflora). The tightness of the relationships between nutrient contents in leaves and the distance from the highway was the highest for Ca (P. spinosa, M. uniflora), Mg, Na, Zn (Q. cerris, P. spinosa) and K (M. uniflora). The K/(Mg + Ca) ratios in Q. cerris and P. spinosa leaves distant 8000 m from the highway were more balanced than those found at 30 m from the highway. This markedly points to favourable biological activity and better stability of the more distant control ecosystem with lower level of pollutants.

中文翻译：

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公路附近森林生态系统土壤和植物养分的空间变异性。

在Querci-Fageta typica和Fagi-Querceta typica的片段中研究了三种主要植物物种的土壤和叶片中选定生物源元素的变异性。斯洛伐克西南部R1 Pribina公路附近的森林生态系统。距公路30 m的土壤中的养分（Mg，K，Na和Zn）含量较低，并且随土壤深度的增加而显着增加。另一方面，在腐殖质表层中发现了最高的Ca浓度，并且随着土壤深度的增加而显着降低。在距高速公路8000 m处的土壤矿物层中发现的Mg，K和Zn含量比距高速公路30 m处的更为均衡。对于Ca（Prunus spinosa，Melica uniflora），Mg（P. spinosa），Na（Quercus cerris，P. P.），距公路30 m处距公路8000 m处的植物叶片养分含量最高。棘）和锌（Q. cerris，M。uniflora）。叶片（P. spinosa，M. uniflora），Mg，Na，Zn（Q. cerris，P. spinosa）和K（M. M.）叶片养分含量与距公路距离之间关系的紧密度最高。 uniflora）。距高速公路8000 m处的Q. cerris和P. spinosa叶片的K /（Mg + Ca）比比距高速公路30 m处的K /（Mg + Ca）比更加平衡。这明显表明，污染物含量较低的较远控制生态系统具有良好的生物活性和更好的稳定性。