Evans, Christopher
- Centre for Ecology and Hydrology (CEH)
Abstract
Sulphur (S) and nitrogen (N) deposition are important drivers of the terrestrial carbon (C) and N cycling. We analyzed changes in C and N pools in soil and tree biomass at a highly acidified spruce site in the Czech Republic during a 15 year period. Total S deposition decreased from 5 to 1.1 g m(-2) yr(-1) between 1995 and 2009, whereas bulk N deposition did not change. Over the same period, C and N pools in the Oa horizon declined by 116 g C and 4.2 g N m(-2) yr(-1), a total decrease of 47% and 42%, respectively. This loss of C and N probably originated from organic matter (OM) that had accumulated during the period of high acid deposition when litter decomposition was suppressed. The loss of OM from the Oa horizon coincided with a substantial leaching (1.3 g N m(-2) yr(-1) at 90 cm) in the 1990s to almost no leaching (
Keywords
acidification; carbon; deposition; DOC; forest floor; leaching; nitrogen; nitrogen saturation; soil; sulphur
Published in
Global Change Biology
2011, volume: 17, number: 10, pages: 3115-3129
Publisher: WILEY-BLACKWELL
SLU Authors
Persson, Tryggve
- Department of Ecology, Swedish University of Agricultural Sciences
- Department of Ecology, Swedish University of Agricultural Sciences
UKÄ Subject classification
Environmental Sciences and Nature Conservation
Forest Science
Publication identifier
- DOI: https://doi.org/10.1111/j.1365-2486.2011.02468.x
Permanent link to this page (URI)
https://res.slu.se/id/publ/57201