Greenhouse gas emissions

In the report "Landbruk og klimaendringer" from february 2016, two main challenges are pointed out: How to couteract climate change through reduction of emissions and how to increase uptake and storage of carbon. In this part of the guide to environmental measures in agriculture, information on GHG emissions from agriculture and possible measures are presented.




This report gives a comprehensive review of current knowledge on nitrous oxide (N2O) emissions from mineral soils with special reference to the Norwegian agriculture and some research results from other countries. The report starts by highlighting the importance of N2O followed by descriptions of the pathways to N2O production and factors affecting N2O emissions from agricultural soils and measurement techniques and modelling N2O emissions. This is followed by reviewing and discussing research results on the effects of soil management practices including fertilizer application, soil compaction, soil tillage, effects of soil moisture and drainage conditions, effects of soil pH, freezing-thawing effects and effects of soil drying and rewetting on N2O emissions. Furthermore, some relevant mitigation measures to reduce N2O emissions are presented. The report concludes by suggesting future research needs to measure and mitigate soil N2O emissions.