on the publication serverTitle data
Hojdova, Maria ; Huang, Jen-How ; Kalbitz, Karsten ; Matzner, Egbert:
Effects of throughfall and litterfall manipulation on concentrations of methylmercury and mercury in forest-floor percolates.
In: Journal of Plant Nutrition and Soil Science.
Vol. 170
(2007)
Issue 3
.
- pp. 373-377.
ISSN 1436-8730
DOI: https://doi.org/10.1002/jpln.200622023
Abstract in another language
The forest floor was shown to be an effective sink of atmospherically deposited methylmercury (MeHg) but less for total mercury (Hgtotal). We studied factors controlling the difference in dynamics of MeHg and Hgtotal in the forest floor by doubling the throughfall input and manipulating aboveground litter inputs (litter removal and doubling litter addition) in the snow-free period in a Norway spruce forest in NE Bavaria, Germany, for 14 weeks. The MeHg concentrations in the forest-floor percolates were not affected by any of the manipulation and ranged between 0.03 (Oa horizon) and 0.11 (Oi horizon) ng Hg L-1. The Hgtotal concentrations were largest in the Oa horizon (24 ng Hg L-1) and increased under double litterfall (statistically significant in the Oi horizon). Similarly, concentrations of dissolved organic C (DOC) increased after doubling of litterfall. The concentrations of Hgtotal and DOC correlated significantly in forest-floor percolates from all plots. However, we did not find any effect of DOC on MeHg concentrations. The difference in the coupling of Hgtotal and MeHg to DOC might be one reason for the differences in the mobility of Hg species in forest floors with a lower mobility of MeHg not controlled by DOC.
Further data
| Item Type: | Article in a journal |
|---|---|
| Refereed: | Yes |
| Additional notes: | BAYCEER36228 |
| Keywords: | methylmercury; total mercury; throughfall; litterfall; manipulation |
| Institutions of the University: | Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Chair Soil Ecology Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Former Professors > Chair Soil Ecology - Univ.-Prof. Dr. Egbert Matzner Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER Faculties Faculties > Faculty of Biology, Chemistry and Earth Sciences Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences Research Institutions Research Institutions > Research Centres |
| Result of work at the UBT: | Yes |
| DDC Subjects: | 500 Science |
| Date Deposited: | 11 Sep 2015 06:33 |
| Last Modified: | 11 Sep 2015 06:33 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/19132 |
