ORIGINAL RESEARCH
Using Different Models to Estimate N2O Fluxes from Maize Cultivation in Poland
Alina Syp, Antoni Faber
 
More details
Hide details
Department of Bioeconomy and Systems Analysis, Institute of Soil Science
and Plant Cultivation − State Research Institute,
8 Czartoryskich Str., 24-100 Puławy, Poland
Online publish date: 2017-09-28
Publish date: 2017-11-07
Submission date: 2017-03-27
Final revision date: 2017-05-04
Acceptance date: 2017-05-04
 
Pol. J. Environ. Stud. 2017;26(6):2759–2766
KEYWORDS:
TOPICS:
ABSTRACT:
This paper presents a comparison of N2O fluxes calculated using empirical and biogeochemical models at the country level applying different climatic conditions. The empirical tools follow Tier 1 and 2 IPCC methods, whereas the process-based model follows Tier 3. In our study the following tools were applied: for Tier 1 – BioGrace calculator, Tier 2 − Lesschen emission factors (Lesschen-EF), and Tier 3 − denitrificationdecomposition (DNDC) model. The N2O fluxes were calculated for maize grown in four-yr crop rotation in Poland. The same input data were applied in all methods, and the sequence of N2O fluxes from largest to lowest was: BioGrace calculator > Lesschen-EF > DNDC. The average N2O emission from maize cultivation applying IPCC default value was 3.17 kg N ha-1 yr-1. Almost two-fold lower fluxes were calculated based on the Lesschen-EF and DNDC model. At a regional level, the Lesschen-EF as well as DNDC model were performed. Therefore, the Lesschen-EF could be recommended for countries to calculate N2O emissions. The advantage of this approach is simplicity of obtaining the necessary data compared to the processbased model requirements. Additionally, the Tier 2 method offers mitigation measures comparable to the DNDC model, related to crop type, weather conditions, and management practices.
eISSN:2083-5906
ISSN:1230-1485