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sector:agriculture:start [2022/12/14 12:30] – [Reasons for recalculations] doeringsector:agriculture:start [2024/11/06 14:50] (current) – external edit 127.0.0.1
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 Emissions occurring in the agricultural sector in Germany derive from manure management (NFR 3.B), agricultural soils (NFR 3.D) and agriculture other (NFR 3.I). Emissions occurring in the agricultural sector in Germany derive from manure management (NFR 3.B), agricultural soils (NFR 3.D) and agriculture other (NFR 3.I).
-Germany does not report emissions in category field burning (NFR 3.F) (key note: NO), because burning of agricultural residues is prohibited by law (see Rösemann et al., 2023)((Rösemann C, Vos C, Haenel H-D, Dämmgen U, Döring U, Wulf S, Eurich-Menden B, Freibauer A, Döhler H, Steuer, B, Osterburg B, Fuß R (2023) Calculations of gaseous and particulate emissions from German agriculture 1990 – 2021 : Report on methods and data (RMD) Submission 2023. https://www.thuenen.de/de/fachinstitute/agrarklimaschutz/arbeitsbereiche/emissionsinventare)).+Germany does not report emissions in category field burning (NFR 3.F) (key note: NO), because burning of agricultural residues is prohibited by law (see Rösemann et al., 2023)((Rösemann C, Vos C, Haenel H-D, Dämmgen U, Döring U, Wulf S, Eurich-Menden B, Freibauer A, Döhler H, Steuer, B, Osterburg B, Fuß R (2023) Calculations of gaseous and particulate emissions from German agriculture 1990 – 2021 : Report on methods and data (RMD) Submission 2023. www.eminv-agriculture.de)).
  
 The pollutants reported are: The pollutants reported are:
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 No heavy metal emissions are reported. No heavy metal emissions are reported.
  
-In 2020 the agricultural sector emitted  482.2 Gg of NH<sub>3</sub>, 108.4 Gg of NO<sub>x</sub>,  290.6 Gg of NMVOC,  60.6 Gg of TSP, 33.3 Gg of PM<sub>10</sub> and 5.3 Gg of PM<sub>2.5</sub> and 0.56 kg HCB. The trend from 1990 onwards is shown in the graph below. The sharp decrease of emissions from 1990 to 1991 is due to a reduction of livestock population in the New Länder (former GDR) following the German reunification. The increase of NH<sub>3</sub> emissions since 2005 is mostly due to the expansion of anaerobic digestion of energy crops, especially the application of the digestion residues. This is a new emission source which also effects NO<sub>x</sub> emissions. The decrease of NH<sub>3</sub> emissions since 2015 is mostly due to a decline in the amounts of mineral fertilizer sold and stricter regulations concerning application of urea fertilizers. Further details concerning trends can be found in Rösemann et al., 2023, chapter “Emissions results submission 2023”.+In 2021 the agricultural sector emitted  482.3 Gg of NH<sub>3</sub>, 108.0 Gg of NO<sub>x</sub>,  290.6 Gg of NMVOC,  60.6 Gg of TSP, 33.3 Gg of PM<sub>10</sub> and 5.3 Gg of PM<sub>2.5</sub> and 0.56 kg HCB. The trend from 1990 onwards is shown in the graph below. The sharp decrease of emissions from 1990 to 1991 is due to a reduction of livestock population in the New Länder (former GDR) following the German reunification. The increase of NH<sub>3</sub> emissions since 2005 is mostly due to the expansion of anaerobic digestion of energy crops, especially the application of the digestion residues. This is a new emission source which also effects NO<sub>x</sub> emissions. The decrease of NH<sub>3</sub> emissions since 2015 is mostly due to a decline in the amounts of mineral fertilizer sold and stricter regulations concerning application of urea fertilizers. Further details concerning trends can be found in Rösemann et al., 2023, chapter “Emissions results submission 2023”.
  
-As depicted in the diagram below, in 2021 XX % of Germany’s total NH<sub>3</sub> emissions derived from the agricultural sector, while nitric oxides reported as NO<sub>x</sub> contributed XX % and NMVOC XX % to the total NOx and NMVOC emissions of Germany. Regarding the emissions of PM<sub>2.5</sub>, PM<sub>10</sub> and TSP the agricultural sector contributed XX % (PM2.5), XX and XX %, respectively, to the national particle emissions. +As depicted in the diagram below, in 2021 93.5 % of Germany’s total NH<sub>3</sub> emissions derived from the agricultural sector, while nitric oxides reported as NO<sub>x</sub> contributed 11.2 % and NMVOC 27.8 % to the total NOx and NMVOC emissions of Germany. Regarding the emissions of PM<sub>2.5</sub>, PM<sub>10</sub> and TSP the agricultural sector contributed 6.3 % (PM2.5),  and 18.0 %, respectively, to the national particle emissions. 
-HCB emissions of pesticide use contributed XX % to the total German emissions.+HCB emissions of pesticide use contributed 12,3 % to the total German emissions.
  
  
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 12) TSP, PM<sub>10</sub>, and PM<sub>2.5</sub> emissions from crop production: Emissions are now estimated using a Tier 2 methodology. 12) TSP, PM<sub>10</sub>, and PM<sub>2.5</sub> emissions from crop production: Emissions are now estimated using a Tier 2 methodology.
  
-13) Anaerobic digestion of animal manures: Update of activity data in all years. +13) Application of sewage sludge to soils: Replacement of extrapolated activity data in 2020 with data from the Federal Statistical Office. 
-  +
-14) Mineral fertilizers: : New weighting procedure for the latest year: 2020 weighted mean from 2019 (weight 1/3) and 2020 (weight 2/3)).+
  
-15) Application of sewage sludge to soils: Update of activity data in 2018 and 2019. Minor corrections of activity data in one federal state for the whole time series.+14) Other organic fertilizers. As of the submission at hand, application emissions from digested waste, compost from biowaste, and compost from green waste are reported in the agriculture sector (3.D.a.2.c) for the first time. These emissions were included implicitly in the waste sector before.
  
-16) Anaerobic digestion of energy crops: Update of activity data in 2019. +15) Anaerobic digestion of energy crops: Update of activity data in 2020. 
-  +
-17) Soils: Minor corrections of cultivated areas and yields in several years.+
  
-18) Pesticides: Recalculations were made for the complete time series due to the changes and new information given by the BVL for the amount of domestic sales of the active substances Lindane (1990 – 1997), Chlorothalonil and Picloram (2019) and the maximum amount of HCB in the active substance Chlorothalonil of the FAO specification was used for the calculation in the period 2005 - 2017.+16) Pesticides: Recalculations were made for the complete time series due to the changes and new information given by the BVL for the amount of domestic sales of the active substances atrazine, simazine, propazine and quintozine.
  
  
  
 +===== Visual overview =====
  
-===== Visual overview ===== +__Emission trends for main pollutants in //NFR 3 - Agriculture//:__ 
-__Chart showing emission trends for main pollutants in //NFR 3 - Agriculture//:__ +{{ :sector:iir_nfr3.png?nolink&direct&700 |NFR 3 emission trends per category }} 
-[{{:sector:iir_nfr3.png?nolink&direct&600|NFR 3 emission trends per category}}] +{{ :sector:iir_nfr3_from_2005.png?nolink&direct&700 |NFR 3 emission trends per category, from 2005 }} 
-[{{:sector:iir_nfr3_from_2005.png?nolink&direct&600|NFR 3 emission trends per category, from 2005}}] + 
-__Contribution of NFR categories to the emissions/Anteile der NFR-Kategorien an den Emissionen__ +__Contribution of NFRs 1 to 6 to the National Totals, for 2021__ 
-[{{:sector:cats_pollutants_incl_transport.png?nolink&direct&600|Contribution of NFR categories to the emissions}}]+{{ :sector:mainpollutants_sharesnfrs_incl_transport.png?direct&direct&700 | Percental contributions of NFRs 1 to 6 to the National Totals}}
  
 ===== Specific QA/QC procedures for the agriculture sector===== ===== Specific QA/QC procedures for the agriculture sector=====
  
 Numerous input data were checked for errors resulting from erroneous transfer between data sources and the tabular database used for emission calculations. Numerous input data were checked for errors resulting from erroneous transfer between data sources and the tabular database used for emission calculations.
-The German IEFs and other data used for the emission calculations were compared with EMEP default values and data of other countries (see Vos et al., 2022). +The German IEFs and other data used for the emission calculations were compared with EMEP default values and data of other countries (see Rösemann et al., 2023). 
-Changes of data and methodologies are documented in detail (see  Vos et al. 2022, Chapter 3.5.2).+Changes of data and methodologies are documented in detail (see  Rösemann et al. 2023, Chapter 1.3).
  
-A comprehensive review of the emission calculations was carried out by comparisons with the results of Submission 2021 and by plausibility checks.+A comprehensive review of the emission calculations was carried out by comparisons with the results of Submission 2022 and by plausibility checks.
  
 Once emission calculations with the German inventory model Py-GAS-EM are completed for a specific submission, activity data (AD) and implied emission factors (IEFs) are transferred to the CSE database (Central System of Emissions) to be used to calculate the respective emissions within the CSE. These CSE emission results are then cross-checked with the emission results obtained by Py-GAS-EM. Once emission calculations with the German inventory model Py-GAS-EM are completed for a specific submission, activity data (AD) and implied emission factors (IEFs) are transferred to the CSE database (Central System of Emissions) to be used to calculate the respective emissions within the CSE. These CSE emission results are then cross-checked with the emission results obtained by Py-GAS-EM.