Evans, Christopher
- Centre for Ecology and Hydrology (CEH)
Sammanfattning
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 (
Nyckelord
acidification; carbon; deposition; DOC; forest floor; leaching; nitrogen; nitrogen saturation; soil; sulphur
Publicerad i
Global Change Biology
2011, volym: 17, nummer: 10, sidor: 3115-3129
Utgivare: WILEY-BLACKWELL
SLU författare
Persson, Tryggve
- Institutionen för ekologi, Sveriges lantbruksuniversitet
- Institutionen för ekologi, Sveriges lantbruksuniversitet
UKÄ forskningsämne
Miljö- och naturvårdsvetenskap
Skogsvetenskap
Publikationens identifierare
- DOI: https://doi.org/10.1111/j.1365-2486.2011.02468.x
Permanent länk till denna sida (URI)
https://res.slu.se/id/publ/57201