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Earth Science Institute of the Slovak Academy of Sciences

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MICROBIAL ACTIVITY IN SOILS UNDER THE INFLUENCE OF PYRITE WEATHERING

• Geologica Carpathica
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• Volume 50 No.5 / October 1999

Published: Oct 1999

Pages: 389 - 394

Authors: MARIANA VYBOHOVA, ALEXANDRA SIMONOVICOVA, PAVEL DLAPA, MIKULAS MADARAS

Abstract: The chemical and microbial characteristics of soils at seven research sites - four affected by an acid sulphate weathering and three intact, undisturbed have been investigated. The extremely low soil pH, the increased electrical conductivity and high exchangeable aluminium contents are characteristic features of the affected soils. These chemical changes were accompanied by the inhibition of the soil respiration and enzyme activities denoted the microbial activity in soils. The small microbial biomass and the abundance of bacteria and microscopic fungi indicated the worsening of living conditions for the soil microorganisms. In spite of this some representatives of microscopic fungi (Euteromycotina) isolated from the damaged soils gave evidence of their adaptability to the extreme conditions.

Keywords: acid sulphate weathering, soil acidification, microscopic fungi, respiration and enzyme activity changes

Volume 50 no. 5 / October 1999

• IVAN KRAUS, IGOR V. CHERNYSHEV, VLADIMIR SUCHA, VLADIMIR A. KOVALENKER, VLADIMIR A. LEBEDEV, EVA SAMAJOVA

  USE OF ILLITE FOR K/AR DATING OF HYDROTHERMAL PRECIOUS AND BASE METAL MINERALIZATION IN CENTRAL SLOVAK NEOGENE VOLCANIC ROCKS

• EVA FRANCŮ, JURAJ FRANCŮ, JIRI KALVODA

  ILLITE CRYSTALLINITY AND VITRINITE REFLECTANCE IN PALEOZOIC SILICICLASTICS IN THE SE BOHEMIAN MASSIF AS EVIDENCE OF THERMAL HISTORY

• MARIAN JANEK, PETER KOMADEL

  ACIDITY OF PROTON SATURATED AND AUTOTRANSFORMED SMECTITES CHARACTERIZED WITH PROTON AFFINITY DISTRIBUTION

• IULIU BOBOS, LUCRETIA GHERGARI

  CONVERSION OF SMECTITE TO AMMONIUM ILLITE IN THE HYDROTHERMAL SYSTEM OF HARGHITA BĂI, ROMANIA: SEM AND TEM INVESTIGATIONS

• MARIANA VYBOHOVA, ALEXANDRA SIMONOVICOVA, PAVEL DLAPA, MIKULAS MADARAS

  MICROBIAL ACTIVITY IN SOILS UNDER THE INFLUENCE OF PYRITE WEATHERING

• OTILIA LINTNEROVA, VLADIMIR SUCHA, VLADIMIR STRESKO

  MINERALOGY AND GEOCHEMISTRY OF ACID MINE FE-PRECIPITATES FROM THE MAIN SLOVAK MINING REGIONS

• MARIOLA MARSZALEK

  QUANTIFICATION OF SALTS IN EXTRACTS FROM BRICKS („WALL OF BRICKS” AT THE WAWEL CASTLE IN CRACOW)

• MARZENA SCHEJBAL-CHWASTEK, MARIOLA MARSZALEK

  MINERALOGICAL AND CHEMICAL IMPACT OF ANTHROPOGENIC EMISSIONS ON SOILS AND ROCKS OF THE OJCÓW NATIONAL PARK (POLAND)