Heavy metals variations in some conifers in Valle d'Aosta (Western Italian Alps) from 1930 to 2000

摘要

The high mountain environment is very sensitive to the climatic and ecological variations that are registered in several natural archives as glaciers or plants. Trees, in particular, modify their growth, habitus, ring features and spatial distribution in relation with climate and environmental changes. Heavy metals variation in tree rings of Larix decidua have been determined to assess whether this arboreal species can be used as bio-geochemical tracers of heavy metal pollution to the alpine environment (C) 2002 Elsevier Science B.V. All rights reserved. [References: 15]