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The State of the Atmospheric Emission Inventory Guidebook April 2007

The State of the Atmospheric Emission Inventory Guidebook April 2007. Ulrich Dämmgen and Nicholas J. Hutchings UN ECE Task Force on Emission Inventories and Projections, Agriculture and Nature Panel. Braunschweig 1. The State of the Guidebook Chapters. General

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The State of the Atmospheric Emission Inventory Guidebook April 2007

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  1. The State of the Atmospheric Emission Inventory GuidebookApril 2007 Ulrich Dämmgen and Nicholas J. HutchingsUN ECE Task Force on Emission Inventories and Projections,Agriculture and Nature Panel Braunschweig 1

  2. The State of the Guidebook Chapters • General • The NEW GUIDEBOOK is to be written so that it matches with the 2006 IPCC Guidelines. • This implies a change in terminology. • Simpler and detailed methodologies will be replaced by Tier1, Tier2 and Tier 3 methodologies. • More attention is to be given to the description of uncertainties (order of magnitude, type). Braunschweig 2

  3. The State of the Guidebook Chapters Chapter 10 01 (Cultures with Fertilizers, 2003) (at present in the hands of Mark Theobald) will have to include emissions from senescence. Chapter 10 02 (Cultures without Fertilizers, 2003) Will have to improve the treatment of legumes. Chapters 10 01 and 10 02 should be merged. Braunschweig 3

  4. The State of the Guidebook Chapters Chapter 10 03 (Stubble Burning, 1996) (a step child) does need more attention. Chapter 10 04 (Enteric Fermentation, 2002) will refer to IPCC methodologies throughout. Our chapter will stress the necessity to perform the energy balance in accordance with the carbon and nitrogen balances. Braunschweig 4

  5. The State of the Guidebook Chapters Chapter 10 05 (Manure Management Regarding Organic Compounds, 2002) (at present in the hands of Jim Webb) CH4 emissions will be treated in IPCC Guidelines. NMVOC emissions still are a problem. Chapter 10 06 (Pesticides and Limestone, 2003) will introduce CO2 emissions from the application of urea (as does IPCC). No other changes anticipated. Braunschweig 5

  6. The State of the Atmospheric Emission Inventory Guidebook The AEI Guidebook favours the Mass Flow Approach for N and C species, dealing with • flow of total N • flow of TAN • flow of total C • flow of VS (nothing gets lost) Braunschweig 6

  7. The State of the Guidebook Chapters • Chapter 10 09 (Manure management regarding nitrogen compounds) • was updated by Nick Hutchings and Ulrich Dämmgen, and is almost ready. • All chapters dealing with emissions from animal husbandry will have to consider animal losses during the production process. • A methodology to derive N excretions has yet to be written. • Treatment of straw will have to be considered in connection with Chapter 10 02. Braunschweig 7

  8. The State of the Guidebook Chapters Chapter 10 10 (Particle Emissions from Animal Husbandry, 2006) Use latest version; first version contained wrong emission factors. Chapter 10 XX (Particle Emissions from Plant Production) Still “under construction”, T. Hinz and K. v.d. Hook will accept any help provided. A conference titled “Particulate Matter - PM - in and from Agriculture” will be held in connection with the work on chapter 10XX, at Braunschweig, September 3 and 4, 2007 Braunschweig 8

  9. The State of the Guidebook Chapters Projections Projections have to be provided regularly. At present, no guidance is available, which standardizes the making of projections. Suggestion: Write an extra chapter with the help of IIASA and EMEP to reflect their experience (IIASA) and needs (EMEP) Braunschweig 9

  10. The State of the Guidebook Chapters • New Technologies • An (regularly) updated Guidebook should contain information relating to new technologies anyway. • If a new technology (or description of an emitting process) is available, each country is free to consider them, as long as they are generally acceptable and documented properly. • Suggestion: • Write a chapter in the Introductory Remarks. Braunschweig 10

  11. The State of the Guidebook Chapters • Organic Farming (1) • Organic farming differs from conventional farming in several aspects: • Closed nutrient cycles are strived for (as far as possible). Animal feeds are to be produced in the farm. Acquisition of feed is restricted. • Mineral fertilizers, in particular of nitrogen fertilizers, are abandoned. • Natural control mechanisms for pests are preferred. • Animals are kept appropriate to species. Braunschweig 11

  12. The State of the Guidebook Chapters Organic Farming (2) The description of processes in organic farming does not differ from conventional farming in principle. Thus, Tier 2 methods are applicable in organic farming without additional information. However: Guidance has to be provided wherever possible to allow the treatment of organic farming using default factors. Suggestion: Add a remark wherever appropriate, develop typical default emission factors. Braunschweig 12

  13. The State of the Guidebook Chapters Biogas (1) Biogas plants dealing with fermentation of slurry are to be dealt with in Chapter 10 05. Typical plants have to be described, and a methodology should be established in accordance with IPCC (2006), Chapter 10.4 (Methane Emissions from Manure Management). NH3 emissions from biogas slurry will have to be treated in Chapter 10 09 (storage, application, incorporation). Suggestion: Incorporate knowledge into draft versions. Braunschweig 13

  14. The State of the Guidebook Chapters Biogas (2) Biogas plants dealing with the fermentation of plant material (maize) need to be considered. In principle, this is an IPCC field of activity. If we draft a chapter, this should be done in close co-operation with IPCC. The mechanisms for CH4 emissions are described. However, NH3 emissions occur during storage and application. Availability of activity data might be the problem. Suggestion: Contact IPCC, gather data on treatment of sludge. Braunschweig 14

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