Leaf litter decomposition in Torna stream before and after a red mud disaster

T. Kucserka, Kata Karádi-Kovács, M. Vass, G. Selmeczy, Katalin Hubai, Viktória Üveges, I. Kacsala, N. Töro, Judit Padisák

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The aim of the study was to estimate the breakdown of the allochthonous litter in an artificial stream running in an agricultural area and compare it with the same values following a toxic mud spill into the same stream. Litter bags were filled with three types of leaves (Quercus robur, Populus tremula and Salix alba) and placed to the bottom of the river. Ergosterol was used to detect fungal biomass. We supposed the absence of fungi and the retardation of leaf litter decomposition. Only pH and conductivity increased significantly. Leaf mass loss after the catastrophe was much slower than in 2009 and the decay curves did not follow the exponential decay model. Prior to the catastrophe, leaf mass loss was fast in Torna, compared to other streams in the area. The reason is that the stream is modified, the bed is trapezoid and covered with concrete stones. Fungal biomass was lower, than in the pre-disaster experiment, because fungi did not have enough leaves to sporulate. Leaf mass loss followed the exponential decay curve before the disaster, but after that it was possible only after a non-change period.

Original languageEnglish
Pages (from-to)96-106
Number of pages11
JournalActa biologica Hungarica
Volume65
Issue number1
DOIs
Publication statusPublished - Mar 1 2014

Keywords

  • Red mud disaster
  • ergosterol
  • fungal biomass
  • leaf litter decomposition
  • leaf mass loss

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Environmental Science(all)
  • Neurology

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  • Cite this

    Kucserka, T., Karádi-Kovács, K., Vass, M., Selmeczy, G., Hubai, K., Üveges, V., Kacsala, I., Töro, N., & Padisák, J. (2014). Leaf litter decomposition in Torna stream before and after a red mud disaster. Acta biologica Hungarica, 65(1), 96-106. https://doi.org/10.1556/ABiol.65.2014.1.9