Nitrous oxide (N2O) is a potent greenhouse gas (GHG) that also depletes stratospheric ozone. Nitrogen (N) fertilizer rate is the best single predictor of N2O emissions from agricultural soils, which are responsible for ∼50% of the total global anthropogenic flux, but it is a relatively imprecise estimator. Accumulating evidence suggests that the emission response to increasing N input is exponential rather than linear, as assumed by Intergovernmental Panel on Climate Change methodologies. The researchers performed a metaanalysis to test the generalizability of this pattern.
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Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/global-metaanalysis-nonlinear-response-soil-nitrous-oxide-n2o-emissions-fertilizer
[2] http://admin.indiaenvironmentportal.org.in/category/author/iurii-shcherbak
[3] http://admin.indiaenvironmentportal.org.in/category/author/neville-millar
[4] http://admin.indiaenvironmentportal.org.in/category/author/g-philip-robertson
[5] http://admin.indiaenvironmentportal.org.in/category/journal/proceedings-national-academy-sciences
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/chemical-fertilisers
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/oxides-nitrogen-nox
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/green-house-gases
