BRAGAZZA, Luca, Chris FREEMAN, Timothy JONES, Hakan RYDIN, Juul LIMPENS, Nathalie FENNER, Tim ELLIS, Renato GERDOL, Michal HÁJEK, Tomáš HÁJEK, Paola IACUMIN, Lado KUTNAR, Teemu TAHVANAINEN a Hannah TOBERMAN. Atmospheric nitrogen deposition promotes carbon loss from peat bogs. Proceedings of the National Academy of Sciences of the USA. Washington, 2006, roč. 103, č. 51, s. 19386-19389. ISSN 0027-8424. |
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@article{705092, author = {Bragazza, Luca and Freeman, Chris and Jones, Timothy and Rydin, Hakan and Limpens, Juul and Fenner, Nathalie and Ellis, Tim and Gerdol, Renato and Hájek, Michal and Hájek, Tomáš and Iacumin, Paola and Kutnar, Lado and Tahvanainen, Teemu and Toberman, Hannah}, article_location = {Washington}, article_number = {51}, keywords = {decomposition; global change; litter peat}, language = {eng}, issn = {0027-8424}, journal = {Proceedings of the National Academy of Sciences of the USA}, title = {Atmospheric nitrogen deposition promotes carbon loss from peat bogs.}, volume = {103}, year = {2006} }
TY - JOUR ID - 705092 AU - Bragazza, Luca - Freeman, Chris - Jones, Timothy - Rydin, Hakan - Limpens, Juul - Fenner, Nathalie - Ellis, Tim - Gerdol, Renato - Hájek, Michal - Hájek, Tomáš - Iacumin, Paola - Kutnar, Lado - Tahvanainen, Teemu - Toberman, Hannah PY - 2006 TI - Atmospheric nitrogen deposition promotes carbon loss from peat bogs. JF - Proceedings of the National Academy of Sciences of the USA VL - 103 IS - 51 SP - 19386-19389 EP - 19386-19389 SN - 00278424 KW - decomposition KW - global change KW - litter peat N2 - We present data showing the decomposition rates of recently formed litter peat samples collected in nine European countries under a natural gradient of atmospheric N deposition. We found that enhanced decomposition rates for material accumulated under higher atmospheric N supplies resulted in higher carbon dioxide emissions and dissolved organic carbon release. The increased N availability favored microbial decomposition (i) by removing N constraints on microbial metabolism and (ii) through a chemical amelioration of litter peat quality with a positive feedback on microbial enzymatic activity. Although some uncertainty remains about whether decay-resistant Sphagnum will continue to dominate litter peat, our data indicate that, even without such changes, increased N deposition poses a serious risk to our valuable peatland C sinks. ER -
BRAGAZZA, Luca, Chris FREEMAN, Timothy JONES, Hakan RYDIN, Juul LIMPENS, Nathalie FENNER, Tim ELLIS, Renato GERDOL, Michal HÁJEK, Tomáš HÁJEK, Paola IACUMIN, Lado KUTNAR, Teemu TAHVANAINEN a Hannah TOBERMAN. Atmospheric nitrogen deposition promotes carbon loss from peat bogs. \textit{Proceedings of the National Academy of Sciences of the USA}. Washington, 2006, roč.~103, č.~51, s.~19386-19389. ISSN~0027-8424.
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