Wyniki wyszukiwania

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State of soil sorption complex in substitute stands under decreased air-pollution load in submontane conditions of the Podkrkonosi Region

100%

Vranova V., Samec P.

Electronic Journal of Polish Agricultural Universities. Series: Forestry

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2005

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tom 08

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nr 1

2

The effect of salinity on native proteolytic activity in soil

80%

Holik L., Vranova V., Rejsek K.

Polish Journal of Environmental Studies

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2017

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tom 26

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nr 6

Salinization of soil has a negative impact on the activity of microorganisms and thus leads to disturbances in the cycling of nutrients in the soil environment. Our goal was to determine what amount of salt has some measurable negative effect on enzymatic activity of soils, namely on native proteases. Inhibition of proteases was detected at as little as 0.5 mg of chloride salts in an organomineral horizon from an oak stand, but in most cases, some inhibitory effect appeared from 1-2 mg of salt added to the soil. Although the stimulatory effects of salt were also observed, in those cases it probably was not associated with activity of the microbial community. Our results indicate the levels from which the activity of microorganisms will probably decrease and organic matter decomposition will be slowed.

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Effect of soil sieving on respiration induced by low-molecular-weight substrates

71%

Datta R., Vranova V., Pavelka M., Rejsek K., Formanek P.

International Agrophysics

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2014

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tom 28

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nr 1

The mesh size of sieves has a significant impact upon soil disturbance, affecting pore structure, fungal hyphae, proportion of fungi to bacteria, and organic matter fractions. The effects are dependent upon soil type and plant coverage. Sieving through a 2 mm mesh increases mineralization of exogenously supplied carbohydrates and phenolics compared to a 5 mm mesh and the effect is significant (p<0.05), especially in organic horizons, due to increased microbial metabolism and alteration of other soil properties. Finer mesh size particularly increases arabinose, mannose, galactose, ferulic and pthalic acid metabolism, whereas maltose mineralization is less affected. Sieving through a 5 mm mesh size is suggested for all type of experiments where enhanced mineralization of low-molecular-weight organic compounds needs to be minimalized.

Ograniczanie wyników

1 Electronic Journal of Polish Agricultural Universities. Series: Forestry

1 International Agrophysics

1 Polish Journal of Environmental Studies

3 Vranova V.

2 Rejsek K.

1 Datta R.

1 Formanek P.

1 Holik L.

1 Pavelka M.

1 Samec P.

1 2017

1 2014

1 2005

State of soil sorption complex in substitute stands under decreased air-pollution load in submontane conditions of the Podkrkonosi Region

The effect of salinity on native proteolytic activity in soil

Effect of soil sieving on respiration induced by low-molecular-weight substrates