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Modelowanie emisji podtlenku azotu i amoniaku w skali regionalnej oraz w Polsce

Author

Listed:
  • Faber, Antoni
  • Jarosz, Zuzanna

Abstract

The aim of the research was to verify the N2O direct and NH3 emission factors adopted in national inventories, and to estimate the direct and indirect N2O emissions in cultivation systems increasing carbon sequestration. Simulations were performed using the DNDC model for NUTS2 and Poland with the use of twenty-year series of meteorological data. It was found that the simulated direct emission of nitrous oxide for Poland was in line with the adopted emission factor. The simulated ammonia emission was greater than the assumed emission factor. Use in simulations of cultivation systems increasing the sequestration of organic carbon, such as conservation system and conventional system with manure fertilization, increased: surface leaching and runoff of nitrogen as well as direct and indirect N2O emission. The increase of these emissions must be compensated with an allowance increase in the amount of sequestered organic carbon in the soil if the greenhouse gas emissions balance is to be negative. / Synopsis. Celem badań była weryfikacja przyjętych w krajowych inwentaryzacjach emisji gazów cieplarnianych współczynników emisji bezpośredniej N2O i NH3 oraz oszacowanie emisji bezpośredniej i pośredniej N2O w systemach uprawy zwiększających sekwestrację węgla. Symulacje wykonywano przy użyciu modelu DNDC dla województw i Polski z użyciem dwudziestoletnich serii danych meteorologicznych. Stwierdzono, że symulowana emisja bezpośrednia podtlenku azotu dla Polski była zgodna z przyjętym współczynnikiem emisji. Symulowana emisja amoniaku była większa od przyjętego współczynnika emisji. Zastosowanie w symulacjach systemów uprawy zwiększających sekwestrację węgla organicznego, takich jak uprawa konserwująca oraz nawożenie obornikiem, zwiększało: wymycie i spływ powierzchniowy azotu oraz emisję bezpośrednią i pośrednią N2O. Wzrost tych emisji powinien być skompensowany z naddatkiem przyrostem ilości sekwestrowanego węgla organicznego w glebie, jeśli bilans emisji gazów cieplarnianych ma być ujemny.

Suggested Citation

  • Faber, Antoni & Jarosz, Zuzanna, 2018. "Modelowanie emisji podtlenku azotu i amoniaku w skali regionalnej oraz w Polsce," Problems of World Agriculture / Problemy Rolnictwa Światowego, Warsaw University of Life Sciences, vol. 18(33, Part ), June.
  • Handle: RePEc:ags:polpwa:275526
    DOI: 10.22004/ag.econ.275526
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