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sector:agriculture:start [2023/05/05 10:41] – [Short description] doering | sector:agriculture:start [2024/12/13 10:20] (current) – [Visual overview] kotzulla | ||
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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 | + | 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 Vos et al., 2024)((Vos C, Rösemann |
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 2021 the agricultural sector emitted | + | The calculations for the present IIR 2024 were finished before |
- | As depicted in the diagram below, in 2021 93.5 % of Germany’s total NH< | + | In 2022 the agricultural sector emitted 469.3 Gg of NH< |
- | HCB emissions of pesticide use contributed 12,3 % to the total German emissions. | + | |
+ | As depicted in the diagram below, in 2022 91.6 % of Germany’s total NH< | ||
====Mitigation measures==== | ====Mitigation measures==== | ||
- | + | The agricultural inventory model can represent several abatement measures for emissions of NH< | |
- | The agricultural inventory model can represent several abatement measures for emissions of NH< | + | |
* changes in animal numbers and amount of applied fertilizers | * changes in animal numbers and amount of applied fertilizers | ||
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* air scrubbing techniques: yearly updated data on frequencies of air scrubbing facilities and the removal efficiency are provided by KTBL (Kuratorium für Technik und Bauwesen in der Landwirtschaft / Association for Technology and Structures in Agriculture) and from the agricultural census 2020. The average removal efficiency of NH< | * air scrubbing techniques: yearly updated data on frequencies of air scrubbing facilities and the removal efficiency are provided by KTBL (Kuratorium für Technik und Bauwesen in der Landwirtschaft / Association for Technology and Structures in Agriculture) and from the agricultural census 2020. The average removal efficiency of NH< | ||
- | * reduced raw protein content in feeding of fattening pigs: the german | + | * reduced raw protein content in feeding of fattening pigs: the German |
- | * reduced raw protein content in feeding and feed conversion rates of broilers: the German animal nutrition association (DVT, Deutscher Verband Tiernahrung e.V.) provides data on the raw protein content of fattening broiler feed, and feed conversion rates of broilers. This makes it possible to model the changes in N-excretions over the time series. | + | * reduced raw protein content in feeding and feed conversion rates of broilers: the German animal nutrition association (DVT, Deutscher Verband Tiernahrung e.V.) provides data on the raw protein content of fattening broiler feed, and feed conversion rates of broilers. This makes it possible to model the changes in N-excretions over the timeseries. |
* low emission spreading techniques of manure: official agricultural censuses survey the distribution of different manure spreading techniques and how fast organic fertilizers are incorporated into the soil. Germany uses distinct emission factors for different methods, techniques and incorporation durations. | * low emission spreading techniques of manure: official agricultural censuses survey the distribution of different manure spreading techniques and how fast organic fertilizers are incorporated into the soil. Germany uses distinct emission factors for different methods, techniques and incorporation durations. | ||
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* covering of slurry storage: agricultural censuses survey the distribution of different slurry covers. Germany uses distinct emission factors for the different covers. | * covering of slurry storage: agricultural censuses survey the distribution of different slurry covers. Germany uses distinct emission factors for the different covers. | ||
- | * use of urease inhibitors: for urea fertilizer the German fertilizer ordinance prescribes the use of urease inhibitors or the direct incorporation into the soil from 2020 onwards.The NH< | + | * use of urease inhibitors: for urea fertilizer the German fertilizer ordinance prescribes the use of urease inhibitors or the direct incorporation into the soil from 2020 onwards. The NH< |
+ | |||
+ | For NO< | ||
- | For NO< | ||
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(see [[general: | (see [[general: | ||
- | The following list summarizes the most important reasons for recalculations. Recalculations result from improvements in input data and methodologies (for details see Rösemann | + | The following list summarizes the most important reasons for recalculations. Recalculations result from improvements in input data and methodologies (for details see Vos et al. (2024), Chapter 1.3). |
- | + | ||
- | 1) The results used from the 2020 agricultural census (LZ 2020) on the proportions of husbandry, storage or application methods and grazing were assumed to be true for the year 2019 and not for the year 2020 as in Submission 2022. This changes the data obtained by interpolation for the different proportions slightly, in some cases as far back as the year 2000. | + | |
- | + | ||
- | 2) Deep bedding systems: As of the submission at hand, it is assumed that the NH< | + | |
- | + | ||
- | 3) Dairy cows: Milk yield and slaughter weights for 2020 have been slightly corrected in the official statistics. | + | |
- | + | ||
- | 4) Heifers: 2020 slaughter weights have been slightly corrected in the official statistics. | + | |
- | + | ||
- | 5) Male beef cattle: In some years, slaughter ages and slaughter weights have been updated in the HIT database. | + | |
- | + | ||
- | 6) Pigs: Air scrubbing techniques: From the 2020 agricultural census, for the first time official data on the number of air scrubbing systems were available. These data were used to derive a distinction between systems of “first” and “second” class (the latter having normal removal efficiency concerning TSP, PM< | + | |
- | but reduced removal efficiency for NH< | + | |
- | + | ||
- | 7) Sows: For Lower Saxony, the number of piglets per sow and year was corrected (reduced) for the years 2015-2020. | + | |
- | + | ||
- | 8) Fattening pigs: The results of the additional survey " | + | |
- | + | ||
- | 9) Broilers: Update of the national gross production of broiler meat in 2020. | + | |
- | + | ||
- | 10) Laying hens: Introduction of grazing emissions for laying hens, since the proportion of excrements from free-range laying hens on the pasture can now be estimated (Rösemann et al. 2023, Chapter 2.5). Based on the results of the LZ2020, a new NH< | + | |
- | + | ||
- | 11) Laying hens: Improved interpolation of start weights and final weights for the whole time series. | + | |
- | + | ||
- | 12) TSP, PM< | + | |
- | + | ||
- | 13) Application of sewage sludge to soils: Replacement of extrapolated activity data in 2020 with data from the Federal Statistical Office. | + | |
- | + | ||
- | 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. | + | |
- | + | ||
- | 15) Anaerobic digestion of energy crops: Update of activity data in 2020. | + | |
- | 16) Pesticides: Recalculations were made for the complete | + | - New animal categories: In the present submission emissions from rabbits, ostrich, deer and fur-animals are reported |
+ | - Imported manure: Emissions from spreading manure that was imported from The Netherlands is reported for the first time in the present submission. | ||
+ | - Dairy cows: Milk yield and slaughter weights for 2021 have been slightly corrected in the official statistics. | ||
+ | - Heifers: 2021 slaughter weights have been slightly corrected in the official statistics. | ||
+ | - Male beef cattle: In some years, slaughter ages and slaughter weights have been updated in the HIT database. | ||
+ | - Numbers of laying hens, pullets and broilers were corrected in the years before 2013. The numbers are higher than in earlier submissions.. | ||
+ | - Sows: For several federal states, the number of piglets per sow and year was corrected for the year 2021. | ||
+ | - Fattening pigs: for several federal states the growth rates, start weights and final weights for the year 2021 were corrected. For Saxony and Saxony-Anhalt (no more recent data available than 2016 or 2017) the corresponding data from the neighboring federal state of Thuringia was adopted instead of keeping the last known value as was previously the case. | ||
+ | - Broilers: Update of the national gross production of broiler meat in 2021. | ||
+ | - Laying hens and pullets: due to new weight data for laying hens for 2021, the starting and final weights of laying hens have been recalculated | ||
+ | - Application of inorganic fertilizers: | ||
+ | - Application of sewage sludge: Replacement of extrapolated activity data in 2021 with data from the Federal Statistical Office and corrections of activity data for years after 2006. | ||
+ | - Anaerobic digestion: Update of activity data in all years due to new data about underlying substrate characteristics and storage data. This applies to both digested energy crops and digested animal manure. | ||
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{{ : | {{ : | ||
- | __Contribution of NFRs 1 to 6 to the National Totals, for 2021__ | + | __Contribution of NFRs 1 to 6 to the National Totals, for 2022__ |
{{ : | {{ : | ||
===== 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., 2024). Changes of data and methodologies are documented in detail (see Vos et al. 2024, Chapter 1.3). |
- | The German IEFs and other data used for the emission calculations were compared with EMEP default values and data of other countries (see Rösemann | + | |
- | Changes of data and methodologies are documented in detail (see | + | |
- | A comprehensive review of the emission calculations was carried out by comparisons with the results of Submission | + | A comprehensive review of the emission calculations was carried out by comparisons with the results of Submission |
- | 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. |
- | Model data have been verified | + | Furthermore, |
- | Furthermore, |