Lasota Jarosław, Błońska Ewa
Department of Forest Soil Science, Faculty of Forestry, University of Agriculture, Al. 29 Listopada 46, 31-425 Krakow, Poland.
Water Air Soil Pollut. 2018;229(6):204. doi: 10.1007/s11270-018-3857-3. Epub 2018 Jun 9.
The aim of the study was to determine polycyclic aromatic hydrocarbon (PAH) content in different forest humus types. The investigation was carried out in Chrzanów Forest District in southern Poland. Twenty research plots with different humus types (mor and mull) were selected. The samples for analysis were taken after litter horizons removing from a depth of 0-10 cm (from the Of- and Oh-horizon total or A-horizon). pH, organic carbon and total nitrogen content, base cations, acidity, and heavy metal content were determined. In the natural moisture state, the activity of dehydrogenase was determined. The study included the determination of PAH content. The conducted research confirms strong contamination of study soil by PAHs and heavy metals. Our experiment provided evidence that different forest humus types accumulate different PAH amounts. The highest content of PAHs and heavy metals was recorded in mor humus type. The content of PAHs in forest humus horizon depends on the content and quality of soil organic matter. Weaker degradation of hydrocarbons is associated with lower biological activity of soils. The mull humus type showed lower content of PAHs and at the same time the highest biological activity confirmed by high dehydrogenase activity.
该研究的目的是测定不同森林腐殖质类型中的多环芳烃（PAH）含量。调查在波兰南部的Chrzanów森林区进行。选择了20个具有不同腐殖质类型（粗腐殖质和细腐殖质）的研究地块。分析样本是在去除凋落物层后，从0 - 10厘米深度（从Of和Oh层总和或A层）采集的。测定了pH值、有机碳和总氮含量、碱性阳离子、酸度以及重金属含量。在自然湿度状态下，测定了脱氢酶的活性。该研究包括PAH含量的测定。所进行的研究证实了研究土壤受到PAHs和重金属的严重污染。我们的实验提供了证据，表明不同的森林腐殖质类型积累不同数量的PAH。粗腐殖质类型中记录到的PAHs和重金属含量最高。森林腐殖质层中PAHs的含量取决于土壤有机质的含量和质量。烃类物质较弱的降解与土壤较低的生物活性相关。细腐殖质类型显示出较低的PAHs含量，同时通过高脱氢酶活性证实具有最高的生物活性。
