Mineral composition of assimilative organs of conifers after reduction of atmospheric pollution in the Kola Peninsula

Mineral composition of assimilative organs of conifers after reduction of atmospheric pollution... An analysis has been made of changes in the mineral composition of conifer needles in northern taiga forests after reduction of emissions from the Severonickel Copper-Nickel Smelter Complex in the city of Monchegorsk, the most powerful source of air pollution in Northern Europe. The data obtained in permanent monitoring plots in 1991, 1993, 2000, and 2007 have been compared. The results provide evidence for reduction in the concentrations of heavy metals (Cu, Ni, Fe) and sulfur in the needles of spruce and pine trees in areas with different levels of air pollution. However, mineral nutrition of conifers has not been optimized. The plants are insufficiently supplied with nutrient elements such as P, Mg, Mn, and Zn. The contents of these and other elements essential for the normal functioning of needles (in particular, Ca, K, and P) continue to decrease, especially in pollution-induced sparse spruce forests. The most significant alterations of nutrient regime have been revealed in the Siberian spruce. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Ecology Springer Journals

Mineral composition of assimilative organs of conifers after reduction of atmospheric pollution in the Kola Peninsula

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Publisher
Springer Journals
Copyright
Copyright © 2014 by Pleiades Publishing, Ltd.
Subject
Life Sciences; Ecology; Environment, general
ISSN
1067-4136
eISSN
1608-3334
D.O.I.
10.1134/S1067413614020088
Publisher site
See Article on Publisher Site

Abstract

An analysis has been made of changes in the mineral composition of conifer needles in northern taiga forests after reduction of emissions from the Severonickel Copper-Nickel Smelter Complex in the city of Monchegorsk, the most powerful source of air pollution in Northern Europe. The data obtained in permanent monitoring plots in 1991, 1993, 2000, and 2007 have been compared. The results provide evidence for reduction in the concentrations of heavy metals (Cu, Ni, Fe) and sulfur in the needles of spruce and pine trees in areas with different levels of air pollution. However, mineral nutrition of conifers has not been optimized. The plants are insufficiently supplied with nutrient elements such as P, Mg, Mn, and Zn. The contents of these and other elements essential for the normal functioning of needles (in particular, Ca, K, and P) continue to decrease, especially in pollution-induced sparse spruce forests. The most significant alterations of nutrient regime have been revealed in the Siberian spruce.

Journal

Russian Journal of EcologySpringer Journals

Published: Apr 5, 2014

References

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