| Autor: |
Jasek, Alina, Zimnoch, Miroslaw, Gorczyca, Zbigniew, Smula, Ewa, Rozanski, Kazimierz |
| Předmět: |
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| Zdroj: |
Isotopes in Environmental & Health Studies; Jun2014, Vol. 50 Issue 2, p143-155, 13p |
| Abstrakt: |
As urban atmosphere is depleted of13CO2, its imprint should be detectable in the local vegetation and therefore in its CO2respiratory emissions. This work was aimed at characterising strength and isotope signature of CO2fluxes from soil in urban areas with varying distances from anthropogenic CO2emissions. The soil CO2flux and its δ13C isotope signature were measured using a chamber method on a monthly basis from July 2009 to May 2012 within the metropolitan area of Krakow, Southern Poland, at two locations representing different levels of anthropogenic influence: a lawn adjacent to a busy street (A) and an urban meadow (B). The small-scale spatial variability of the soil CO2flux was also investigated at site B. Site B revealed significantly higher summer CO2fluxes (by approximately 46 %) than site A, but no significant differences were found between their δ13CO2signatures. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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