Reactive nitrogen (Nr) includes the inorganic (NH3, NH4, NOx, HNO3, N2O, NO3) and organic forms (urea, amines, proteins, nucleic acids) that readily participate in various reactions of the global N cycle. Over the last half a century, anthropogenic perturbations of the natural N cycle have led to the increasing accumulation of inorganic Nr in the soil, water and air, intentionally through agriculture and unintentionally through fosill-fuel consumption and other activities, adversely affecting human health, biodiversity, environment and climate change.
Original Source [2]
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/perspective-reactive-nitrogen-global-asian-and-indian-context
[2] http://www.currentscience.ac.in/Downloads/article_id_094_11_1375_1381_0.pdf
[3] http://admin.indiaenvironmentportal.org.in/category/author/james-galloway
[4] http://admin.indiaenvironmentportal.org.in/category/author/n-raghuram-0
[5] http://admin.indiaenvironmentportal.org.in/category/author/y-p-abrol
[6] http://admin.indiaenvironmentportal.org.in/category/journal/current-science
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/agriculture
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/agricultural-inputs
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/oxides-nitrogen-nox
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/climate-change
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/fossil-fuels
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/asia
[13] http://admin.indiaenvironmentportal.org.in/category/thesaurus/india