| Literature DB >> 24631973 |
Lotte Van Nevel1, Jan Mertens2, Andreas Demey3, An De Schrijver3, Stefaan De Neve4, Filip M G Tack5, Kris Verheyen3.
Abstract
In a forest on sandy, metal polluted soil, we examined effects of six tree species on litter decomposition rates and accompanied changes in metal (Cd, Zn) and nutrient (base cations, N, C) amounts. Decomposition dynamics were studied by means of a litterbag experiment lasting for 30 months. The decomposition peak occurred within the first year for all tree species, except for aspen. During litter decomposition, high metal litter types released part of their accumulated metals, whereas low metal litter types were characterized by a metal enrichment. Base cations, N and C were released from all litter types. Metal release from contaminated litter might involve risks for metal dispersion towards the soil. On the other hand, metal enrichment of uncontaminated litter may be ecologically relevant as it can be easily transported or serve as food source.Entities:
Keywords: Base cations; Litter decomposition; Litterbags; Nitrogen; Trace metals; Tree species
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Year: 2014 PMID： 24631973 DOI： 10.1016/j.envpol.2014.02.009
Source DB: PubMed Journal: Environ Pollut ISSN： 0269-7491 Impact factor: 8.071