Improving the quantification of GHG emissions and flows of reactive nitrogen (IDEAg-NG)
What is agriculture’s role in climate change dynamics? The contribution of European agriculture to greenhouse gas (GHG) emissions is second only to the energy sector and is expected to grow. On the one hand, current EU efforts to decarbonize the European economy will be the main drivers of such developments. On the other hand, agriculture can play a crucial role in climate change mitigation. This project aims at providing a comprehensive quantitative assessment of relevant emission flows in order to highlight agriculture’s impacts on climate change and investigate possible positive contributions by agriculture to mitigation efforts.
More than 90% of ammonia emissions and overall more than 50% of emissions of reactive nitrogen to the atmosphere and hydrosphere are of agricultural origin. National GHG inventories for agriculture provide estimates for non-CO2 emissions of methane and nitrous oxide form sources such as enteric fermentation, manure management, agricultural soils etc.
In order to provide a quantitative assessment of flows of GHG emissions and reactive nitrogen from agricultural sources in Europe, the CAPRI (Common Agricultural Policy Regionalized Impact) model is employed. By capturing the close relationship between processes and activities controlling the emissions of GHG and reactive nitrogen, relevant CAPRI modules allow a consistent and comprehensive accounting of these flows. This serves as a basis for further analyses of key indicators for agro-environmental evaluations at the regional and global level.
For the submission of the 2015 inventories new guidelines by the IPCC (2006 IPCC Guidelines for National Greenhouse Gas Inventories) are to be used. These guidelines require several changes in emission factors and calculation procedures as well as emission source categorization.
The objectives of the IDEAg-NG project are therefore to:
To fulfill the project’s objective several tasks are envisaged:
Database update, code revision and updating of relevant modules in CAPRI will be conducted following provisions of the IPCC guidelines. This will include such tasks as the consideration of CO2 emissions from liming and urea application as well as the development of a ready-to-use interface that allows comparing GHG estimates from CAPRI with national inventory data. Furthermore a methodology will be developed to improve the estimation of agro-environmental indicators in CAPRI. This methodology will be based on farm management information included in agricultural surveys such as the Survey on Agricultural Production Methods (SAPM) of 2010 and data from the Farm Structure Survey (FSS). To allow for a more comprehensive assessment, the farm management information will be linked to locational information such as geographical and high-resolution micro data.
8.2015 - 9.2017
Project status: ongoing