P removal by reed harvest in the Kis-Balaton Reservoir - Dream or reality?

Balázs László, Vera Istvánovics

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Soluble reactive P (SRP) load of the Lower Kis-Balaton Reservoir varied between 1.27-4.85 t yr-1. This load did not decrease while passing the 16 km2 reed area. On the contrary, the outflow load of 3.53-25.64 t yr-1 exceeded the inflow. According to the original conception, reed stands should have retained most of the P load. We followed seasonal changes in the biomass and P content of reed shoots and rhizomes. We measured P uptake or release by the reed from/into the water. Plants covered 70% of the shootis P demand from the P pool of the rhizomes, and took up the rest from the soil. We conclude that reed harvest will not improve P retention of the Reservoir.

Original languageEnglish
Pages (from-to)635-638
Number of pages4
JournalInternational Review of Hydrobiology
Volume83
Issue numberSPEC. ISS.
Publication statusPublished - Dec 1 1998

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Keywords

  • Nutrient retention
  • P load
  • P uptake/release
  • Reed biomass and growth

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Aquatic Science

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