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Cadmium and zinc migration in Scots pine stands growing in contaminated areas from metallurgical plant emissions
International Journal of Environmental Science and Technology ( IF 3.0 ) Pub Date : 2021-01-02 , DOI: 10.1007/s13762-020-03104-1
G. A. Zaitsev , O. A. Dubrovina , A. Yu. Kulagin , R. I. Shainurov

The accumulation of cadmium and zinc in aboveground and belowground organs of Scots pine (Pinus sylvestris L.) and the metal migration extents in the soil–plant system were analysed for the stands growing in contaminated areas from metallurgical plant emissions. The pine stands of the comparable age (38–45 years old), and a similar structure, selected for research, is grown in the sanitary protection zone of the city of Lipetsk (Lipetsk Region, Russia) in the vicinity of the metallurgical combine (Novolipetsk Steel). Using atomic absorption spectrometry determined cadmium and zinc content in the soil, fine (< 1 mm) roots, annual shoots, and needles. In the impact zone, the Novolipetsk Steel releases significant contamination of the soil’s surface layers with cadmium and zinc. The present investigation identifies the changes in cadmium and zinc content in the soil that correlated (moderately and strongly) with acidity and humus in the ground. The pine fine roots in the impact zone take in these metals sufficiently, with zinc being absorbed more intensively than cadmium. As against the fine roots, it has been indicated that one-year needles and shoots actively cumulate zinc. The biological accumulation and migration coefficient values show that zinc is actively stored in Scots pine annual needles and shoots.



中文翻译:

冶金工厂排放的污染地区中,苏格兰松中的镉和锌迁移量正在增加

樟子松地上和地下器官中镉和锌的积累。L.)和土壤-植物系统中金属迁移的程度,分析了冶金工厂排放在受污染地区生长的林分。年龄相近(38-45岁)的松树架,并经过研究选择的相似结构,生长在利佩茨克市(俄罗斯利佩茨克州,俄罗斯)的冶金联合厂附近的卫生保护区(新利佩茨克钢)。使用原子吸收光谱法测定土壤,细根(<1毫米),一年生芽和针中的镉和锌含量。在撞击区,新利佩茨克钢释放出镉和锌对土壤表层的严重污染。本研究确定了土壤中镉和锌含量的变化(与土壤中的酸度和腐殖质相关(适度且强烈))。冲击区的松树细根充分吸收了这些金属,锌的吸收比镉的吸收更为强烈。相对于细根,已经表明一年的针和嫩芽会主动积聚锌。生物积累和迁移系数值表明,锌活跃地储存在苏格兰松树的一年生针叶和新梢中。

更新日期:2021-01-03
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