A study of the decomposition of reed (Phragmites australis) as a possible source of aquatic humic substances by measuring the natural abundance of stable carbon isotopes

Katalin V.-Balogh, M. Présing, Lajos Vörös, Noémi Tóth

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The decomposition of leaf and steam litter of reed (P. australis) was measured both in the field and in the laboratory. The breakdown rates, the total carbon and the stable carbon isotope dynamics of reed litter were determined. The stable carbon isotope ratios of isolated humic substances (fulvic and humic acids) were also analysed. The δ13C value in reed remains increased from -26‰ to -24‰ for stems and from -27‰ to -26‰ for leaves. The dissolved fulvic and humic acids isolated from the experimental bottles (mean δ13C was -27.6‰) and the reservoir water were depleted in 13C (mean δ13C was -28.6‰) relative to the reed remains. The results show that reed litter is an important source of coloured aquatic humic substances.

Original languageEnglish
Pages (from-to)15-28
Number of pages14
JournalInternational Review of Hydrobiology
Volume91
Issue number1
DOIs
Publication statusPublished - 2006

Fingerprint

humic substances
Phragmites australis
humic substance
carbon isotope
isotopes
stable isotope
fulvic acids
decomposition
humic acids
degradation
carbon
litter
fulvic acid
water reservoirs
humic acid
bottles
steam
leaves
carbon isotope ratio
stems

Keywords

  • DOC
  • Humic acids fulvic acids
  • Litter breakdown
  • Water colour

ASJC Scopus subject areas

  • Aquatic Science

Cite this

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abstract = "The decomposition of leaf and steam litter of reed (P. australis) was measured both in the field and in the laboratory. The breakdown rates, the total carbon and the stable carbon isotope dynamics of reed litter were determined. The stable carbon isotope ratios of isolated humic substances (fulvic and humic acids) were also analysed. The δ13C value in reed remains increased from -26‰ to -24‰ for stems and from -27‰ to -26‰ for leaves. The dissolved fulvic and humic acids isolated from the experimental bottles (mean δ13C was -27.6‰) and the reservoir water were depleted in 13C (mean δ13C was -28.6‰) relative to the reed remains. The results show that reed litter is an important source of coloured aquatic humic substances.",
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T1 - A study of the decomposition of reed (Phragmites australis) as a possible source of aquatic humic substances by measuring the natural abundance of stable carbon isotopes

AU - V.-Balogh, Katalin

AU - Présing, M.

AU - Vörös, Lajos

AU - Tóth, Noémi

PY - 2006

Y1 - 2006

N2 - The decomposition of leaf and steam litter of reed (P. australis) was measured both in the field and in the laboratory. The breakdown rates, the total carbon and the stable carbon isotope dynamics of reed litter were determined. The stable carbon isotope ratios of isolated humic substances (fulvic and humic acids) were also analysed. The δ13C value in reed remains increased from -26‰ to -24‰ for stems and from -27‰ to -26‰ for leaves. The dissolved fulvic and humic acids isolated from the experimental bottles (mean δ13C was -27.6‰) and the reservoir water were depleted in 13C (mean δ13C was -28.6‰) relative to the reed remains. The results show that reed litter is an important source of coloured aquatic humic substances.

AB - The decomposition of leaf and steam litter of reed (P. australis) was measured both in the field and in the laboratory. The breakdown rates, the total carbon and the stable carbon isotope dynamics of reed litter were determined. The stable carbon isotope ratios of isolated humic substances (fulvic and humic acids) were also analysed. The δ13C value in reed remains increased from -26‰ to -24‰ for stems and from -27‰ to -26‰ for leaves. The dissolved fulvic and humic acids isolated from the experimental bottles (mean δ13C was -27.6‰) and the reservoir water were depleted in 13C (mean δ13C was -28.6‰) relative to the reed remains. The results show that reed litter is an important source of coloured aquatic humic substances.

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KW - Water colour

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