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Published on: August 8, 2014
Chemical composition of vegetation along urbanisation gradients in two European cities
A Sæbø1, H M Hanslin1, T Torp1
1Bioforsk - Norwegian Institute for Agricultural and Environmental Research, Postvegen 213, 4353 Klepp, Norway.
Abstract:
Accumulation of particulate matter (PM) and metals on leaves of three deciduous woody species was studied along urbanisation gradients in Stavanger and Warsaw. Differences between rural and urban sites explained most of the observed variation in leaf chemistry, followed by differences between regions. Highest leaf accumulation of elements was found in Warsaw, but also composition of elements differed between the cities. Overall, species showed similar patterns of element accumulation, but differed in accumulation of specific elements. These differences could in part be explained by differences in epicuticular waxes and PM accumulation. Expected source of elements and their chemical characteristics did not explain the observed accumulation patterns. A better differentiation between elements taken up from soil and air would be required for his. Species specific accumulation of elements has to be taken into consideration using leaf samples for biomonitoring.
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