Decomposition Rate, and Carbon and Nitrogen Dynamics of Sphagnum Litter : Lessons from a Peat Bog

• Autorzy: Péli E. R. , Nagy J. , Cserhalmi D.

Identyfikatory

DOI

10.3161/15052249PJE2016.64.2.007

• Języki publikacji: EN

Abstrakty

EN

Decomposition rates and changes of carbon and nitrogen contents of Sphagnum litter in mire vegetation can help to explore the ecological effects of climate change and the role of environmental factors from a local to an ecosystem scale. The objective of the study was to determine the relationship between mentioned parameters in small and isolated Sphagnum dominated mires. Measurements had been conducted throughout a year by placing litterbags filled with Sphagnum biomass in three vegetation types (open peat bog, poor fen, alder carr) of a mire ecosystem in Hungary. Peat decomposition rates differed to a great extent; the slowest decomposition rate (39.1±9.52%) was in the alder carr, indicating that slower decomposition could be characteristic for this kind of vegetation type of mire. Between Sphagnum dominated microhabitats, open peat bog showed medium (65.57±4.05) while poor fen the fastest (68.61±5.5) rates in decomposition. The C/N ratio of the Sphagnum litter showed significant decrease (P <0.005) in all studied micro-environments. Slower N release was observed from litter of Alnus dominated association (31.3±6.9%) compared to Sphagnum dominated ones (56.5±8.3%). Our findings showed that the decomposition rates were more dependent on vegetation type than C/N ratio and this relationship was also revealed at a small spatial scale.

Słowa kluczowe

EN

mass loss; C/N ratio; carbon release; nitrogen release

PL

utrata masy; wskaźnik C/N; uwolnienie dwutlenku węgla; uwolnienia azotu

• Wydawca: Museum and Institute of Zoology, Polish Academy of Sciences
• Czasopismo: Polish Journal of Ecology
• Rocznik: 2016
• Tom: Vol. 64, nr 2
• Strony: 231--240
• Opis fizyczny: Bibliogr. 38 poz., rys., tab., wykr.

Twórcy

autor

Péli E. R.

• MTA-SZIE Plant Ecology Research Group, Szent István University, Institute of Botany and Ecophysiology, 2103 Gödöllő, Páter K. 1. Hungary

autor

Nagy J.

• Szent István University, Institute of Botany and Ecophysiology, Faculty of Agricultural and Environmental Sciences, 2103 Gödöllő, Páter K. 1. Hungary

autor

Cserhalmi D.

• Szent István University, Institute of Biology, Department of Botany, Faculty of Veterinarian Sciences, H-1078 Budapest, Rottenbiller 50. Hungary

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.