|
Nitrous oxide emissions from agriculture,
kt N2O. |
|||||||||||||||||||||||||||||||||||||||
|
Source |
1985 |
1986 |
1987 |
1988 |
1989 |
1990 |
1991 |
1992 |
1993 |
1994 |
1995 |
1996 |
1997 |
1998 |
1999 |
2000 |
2001 |
2002 |
2003 |
2004 |
2005 |
2006 |
2007 |
2008 |
2009 |
2010 |
2011 |
2012 |
2013 |
2014 |
2015 |
2016 |
2017 |
2018 |
2019 |
2020 |
2021 |
2022 |
2023 |
|
Manure management |
3.63 |
3.72 |
3.66 |
3.70 |
3.71 |
3.69 |
3.73 |
3.84 |
3.84 |
3.70 |
3.60 |
3.61 |
3.66 |
3.79 |
3.71 |
3.69 |
3.81 |
3.87 |
3.80 |
3.91 |
3.67 |
3.43 |
3.38 |
3.20 |
3.02 |
2.99 |
2.93 |
2.88 |
2.85 |
2.84 |
2.80 |
2.78 |
2.77 |
2.81 |
2.64 |
2.62 |
2.37 |
2.24 |
2.00 |
|
Manure applied
to soils |
3.48 |
3.48 |
3.37 |
3.32 |
3.29 |
3.28 |
3.27 |
3.28 |
3.31 |
3.19 |
3.10 |
3.10 |
3.08 |
3.13 |
3.10 |
3.07 |
3.15 |
3.23 |
3.23 |
3.30 |
3.33 |
3.23 |
3.41 |
3.35 |
3.27 |
3.29 |
3.28 |
3.27 |
3.29 |
3.31 |
3.32 |
3.35 |
3.42 |
3.47 |
3.34 |
3.37 |
3.19 |
3.03 |
2.81 |
|
Inorganic fertlizers |
6.26 |
6.00 |
5.99 |
5.77 |
5.92 |
6.29 |
6.21 |
5.81 |
5.23 |
5.13 |
4.96 |
4.57 |
4.52 |
4.45 |
4.13 |
3.95 |
3.67 |
3.31 |
3.16 |
3.25 |
3.24 |
3.01 |
3.06 |
3.46 |
3.34 |
3.16 |
3.25 |
3.15 |
3.17 |
3.24 |
3.35 |
3.85 |
3.91 |
3.56 |
3.69 |
3.96 |
3.59 |
3.75 |
3.10 |
|
Crop residues |
1.90 |
1.91 |
1.79 |
2.06 |
2.16 |
2.45 |
2.34 |
1.80 |
2.08 |
2.02 |
2.35 |
2.36 |
2.49 |
2.44 |
2.26 |
2.48 |
2.54 |
2.40 |
2.48 |
2.49 |
2.60 |
2.58 |
2.48 |
2.67 |
2.98 |
2.74 |
2.81 |
2.86 |
2.83 |
3.07 |
3.03 |
2.89 |
3.03 |
2.26 |
2.99 |
3.04 |
2.84 |
2.99 |
2.39 |
|
N-leaching and runoff |
3.84 |
3.74 |
3.65 |
3.55 |
3.46 |
3.31 |
3.15 |
3.17 |
3.12 |
3.29 |
2.95 |
2.42 |
2.39 |
2.71 |
2.59 |
2.37 |
2.19 |
2.31 |
1.88 |
2.09 |
1.98 |
2.01 |
2.21 |
2.10 |
1.99 |
2.04 |
2.06 |
2.04 |
2.00 |
1.97 |
2.08 |
2.06 |
2.00 |
1.97 |
2.05 |
1.95 |
1.76 |
1.63 |
1.88 |
|
Organic soils |
2.82 |
2.80 |
2.78 |
2.75 |
2.73 |
2.71 |
2.68 |
2.66 |
2.64 |
2.61 |
2.59 |
2.57 |
2.54 |
2.52 |
2.49 |
2.47 |
2.45 |
2.42 |
2.40 |
2.38 |
2.35 |
2.33 |
2.31 |
2.28 |
2.26 |
2.24 |
2.14 |
2.05 |
1.96 |
1.88 |
1.79 |
1.71 |
1.62 |
1.54 |
1.46 |
1.38 |
1.31 |
1.23 |
1.20 |
|
Volatilized N, soils |
2.17 |
2.09 |
2.05 |
1.96 |
1.99 |
2.04 |
1.94 |
1.82 |
1.76 |
1.69 |
1.57 |
1.47 |
1.42 |
1.38 |
1.28 |
1.23 |
1.13 |
1.05 |
0.99 |
0.95 |
0.95 |
0.92 |
0.95 |
0.97 |
0.91 |
0.93 |
0.87 |
0.86 |
0.87 |
0.89 |
0.91 |
0.95 |
0.99 |
0.95 |
0.92 |
0.96 |
0.91 |
0.89 |
0.80 |
|
Other |
0.71 |
0.67 |
0.59 |
0.81 |
0.86 |
0.75 |
0.55 |
0.91 |
0.62 |
0.53 |
0.56 |
0.39 |
0.46 |
0.41 |
0.45 |
0.49 |
0.37 |
0.60 |
0.49 |
0.37 |
0.31 |
0.48 |
0.66 |
0.51 |
0.36 |
0.23 |
0.32 |
0.30 |
0.26 |
0.39 |
0.26 |
0.30 |
0.24 |
0.56 |
0.47 |
0.39 |
0.31 |
0.36 |
0.50 |
|
Sum |
24.81 |
24.42 |
23.87 |
23.91 |
24.11 |
24.53 |
23.87 |
23.29 |
22.61 |
22.16 |
21.69 |
20.48 |
20.56 |
20.82 |
20.02 |
19.74 |
19.31 |
19.21 |
18.44 |
18.72 |
18.44 |
17.98 |
18.46 |
18.53 |
18.12 |
17.61 |
17.66 |
17.41 |
17.23 |
17.58 |
17.54 |
17.88 |
17.97 |
17.13 |
17.55 |
17.67 |
16.28 |
16.13 |
14.70 |
|
Updated: 26/02-2025 |
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