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Effective beginning 5/20/2025: Please note this site is under review and content may change.
- About
- Chapters
- Recommended Citations
Hanson, W.L., C. Itle, K. Edquist. 2024. Chapter 1: Introduction. In Hanson, W.L., C. Itle, K. Edquist. (eds.). Quantifying greenhouse gas fluxes in agriculture and forestry: Methods for entity-scale inventory. Technical Bulletin Number 1939, 2nd edition. Washington, DC: U.S. Department of Agriculture, Office of the Chief Economist.
Image | Download | Description | Other Files | |
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![]() | Full Report |
USDA-Methods-Report-2024.pdf
(24.2 MB)
| Full, complete report. Other files include the Excel workbook used in Chapter 5 to quantify the projected GHG flux from forest management activities, Excel workbook user guide, and Excel workbook SQL code documentation. |
USDA Methods Report Chapter 5 Files
(7.2 MB)
|
![]() | Executive Summary |
USDA-Methods-Report-Chapter-0_0.pdf
(7.03 MB)
| Includes summary of GHG sources and approaches and an overview of GHG estimation methods. | |
![]() | Chapter 1, Introduction |
USDA-Methods-Report-Chapter-1.pdf
(1.24 MB)
| Includes background information on how the methods were developed. Summarizes methods for each sector and how to select the appropriate methods for a specific entity. | |
![]() | Chapter 2, Considerations When Estimating Agriculture and Forestry GHG Emissions and Removals |
USDA-Methods-Report-Chapter-2.pdf
(804.61 KB)
| Outlines the estimation process and includes standard definitions and system boundaries to consider in entity estimates. | |
![]() | Chapter 3, Quantifying Greenhouse Gas Sources and Sinks in Cropland and Grazing Land Systems |
USDA-Methods-Report-Chapter-3_0.pdf
(2.26 MB)
| Includes GHG estimation methods for the croplands and grazing lands sectors. | |
![]() | Chapter 4, Quantifying Greenhouse Gas Sources and Sinks in Animal Production Systems |
USDA-Methods-Report-Chapter-4_0.pdf
(4.66 MB)
| Includes GHG estimation methods for the animal production sector. | |
![]() | Chapter 5, Quantifying Greenhouse Gas Sources and Sinks in Managed Forest Systems |
USDA-Methods-Report-Chapter-5.pdf
(5.55 MB)
| Includes GHG estimation methods for the managed forest sector. Other files include the accompanying Excel workbook and its SQL script and instructions. |
USDA Methods Report Chapter 5 Files
(7.2 MB)
|
![]() | Chapter 6, Quantifying Greenhouse Gas Sources and Sinks in Managed Wetland Systems |
USDA-Methods-Report-Chapter-6.pdf
(682.55 KB)
| Includes GHG estimation methods for the managed wetland sector. | |
![]() | Chapter 7, Quantifying Greenhouse Gas Sources and Sinks in Land-Use Change |
USDA-Methods-Report-Chapter-7.pdf
(873.59 KB)
| Includes estimation methods for GHG flux resulting from changes between land-use types at the entity scale. | |
![]() | Chapter 8, Uncertainty Quantification for Entity-Scale Greenhouse Gas Emissions |
USDA-Methods-Report-Chapter-8.pdf
(955.09 KB)
| Includes uncertainty quantification methods and guidance for entity-scale GHG estimation. |