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Free trace metals are one of the most relevant environmental problems of today; consequently, it is becoming important to evaluate their spatial distribution and accumulation rates in the natural environment. For this analysis, Scots pine (Pinus sylvestris L.) was chosen as suitable for indication of environmental stress because of its simple wood structure and of well distinct tree-rings for evaluation of temporal trace metals concentration changes. For the primary study, we chose the most evenly forested territory – the south-eastern part of Lithuania. The study results revealed that the background Zn concentration in Scots pines is 7.2 mg·kg−1 and that of Cu amounts to 2.5 mg·kg−1 The anomaly concentration of both trace metals in Scots pine defined to be higher than 21.3 for Zn and 9.0 mg·kg−1 of d.w. for Cu. The Cu and Zn concentration in Scots pine stem distributed gradually with slightly increased values towards the bark. However, a lower concentration rate was noticed in the wood formed in...

journal of environmental engineering and landscape management

INVESTIGATION AND EVALUATION OF COPPER AND ZINC CONCENTRATION TENDENCIES IN PINUS SYLVESTRIS L. TREE-RINGS / VARIO IR CINKO KONCENTRACIJOS KAUPIMOSI TENDENCIJOS PINUS SYLVESTRIS L. METINĖSE RIEVĖSE TYRIMAI IR VERTINIMAS / ИССЛЕДОВАНИЕ И ОЦЕНКА ИЗМЕНЕНИЙ КОНЦЕНТРАЦИЙ МЕДИ И ЦИНКАВ ГОДОВЫХ КОЛЬЦАХ PINUS SYLVESTRIS L.