Wpływ zasolenia na aktywność dehydrogenaz w odniesieniu do ekologicznego znaczenia skażenia gleby
Ładowanie...
Pliki
Data
2014
Tytuł czasopisma
ISSN czasopisma
Tytuł tomu
Wydawca
Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie
Abstrakt
The aim of this study was to determine dehydrogenases activity in the soil with the
addition of NaCl in different concentrations and to identify whether the observed changes to be
considered dangerous, tolerated, or insignificant for soil ecosystem. The study was carried out
on samples of loamy sand, sandy loam and sandy clay loam. The aqueous NaCl solutions were
introduced to soil in the doses of: 0; 0.05; 0.50; 5.00; 50.00 mmol · kg–1. Dehydrogenases
activity was measured spectrophotometrically in 1, 3, 7, 14, 28, 56 and 112 day of incubation.
The results are indicated in the graphs of ecological hazard zones (Domsch et al. 1983). The
presence in soil of sodium chloride caused inhibition of dehydrogenases activity. The observed
inhibition level of these enzymes was greatest in loamy sand and decreased with organic
carbon and clay fraction ≤ 0.002 mm. Soil salinity with largest doses of NaCl (5.00 and
50.00 mmol · kg–1), in relation to ecological significance of soil contamination could turn into its
degradation.
Opis
Słowa kluczowe
dehydrogenazy, gleba, zasolenie, dehydrgenases, salinity, soil
Cytowanie
Telesiński A., Onyszko M., Płatkowski M., Stręk,M. (2014). Wpływ zasolenia na aktywność dehydrogenaz w odniesieniu do ekologicznego znaczenia skażenia gleby. Folia Pomer. Univ. Technol. Stetin., Agric., Aliment., Pisc., Zootech. 309 (29), 115–122.