LCA Food 2012 in Saint Malo, France! - Manifestations et colloques ...

PARALLEL SESSION 2B: EMISSIONS MODELLING 8 th Int. Conference on LCA in the
Agri-Food Sector, 1-4 Oct 2012
tems (Guinée et al., 2009). Nevertheless, input requirements to run the model might be a limitation of its use
for LCA of agricultural systems (Del Grosso et al., 2008).
5. Conclusion
The present work showed that CERES-EGC simulations both with and without residue decomposition
presented a major difference in N2O emissions estimates with the IPCC procedure. These variations were
mainly due to the interaction of soil and climatic conditions with farming practice. In particular, the N fertiliser
application resulted in a low effect on N2O emissions in dry conditions. On the contrary, most of the
emissions were due to residue decomposition.
Despite its limits due to data needed to run the model, CERES-EGC was able to take into account the interaction
between farming practices, climate and soil characteristics. Thus its use will improve precision in
the estimation of environmental impacts due to the cultivation phase of agricultural LCA.
6. References
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