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Nitrogen cycle factors contributing to N 2 O production from fertilizers
Author(s) -
Sze Nien Dak,
Rice Harbert
Publication year - 1976
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/gl003i006p00343
Subject(s) - denitrification , nitrogen , environmental science , ozone , nitrogen cycle , reactive nitrogen , production (economics) , fertilizer , agriculture , nitrogen fertilizer , atmospheric sciences , agronomy , environmental chemistry , soil science , chemistry , ecology , biology , physics , organic chemistry , economics , macroeconomics
Nitrogen cycle factors contributing to N 2 O production and associated ozone perturbations are examined. It is pointed out that fertilizer nitrogen losses are non‐linear and increase with application rate. Losses are apportioned between rapid denitrification (∼ 1 year) and slower transfer processes of 10² to 10³ years between nitrogen reservoirs. It is concluded that different estimates of N 2 O production result from selecting nitrogen models with different denitrification and transfer efficiencies. A significant ozone perturbation cannot be ruled out because of uncertainties in the relative efficiency of agricultural denitrification.