To accurately complete the Greenhouse Accounting Framework (GAF) calculations for your farm, you will need the following evidence, records, and business statements.
Instruction:
After creating and account you will see a orange button on the top right of the 'Emissions Breakdown' on your dashboard. Select this to complete the full emissions calculations powered by the GAF framework.
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Necessary Documentation for Accuracy:
General Farm Information
- Farm name and location details.
- Total land area by use (e.g., cropping, grazing, remnant vegetation).
- Historical land-use changes, such as clearing or regrowth over the past 20 years.
Livestock Inventory
- Numbers of livestock by category (e.g., breeders, replacements, traded cattle, etc.), averaged across seasons.
- Details on births, deaths, sales, and purchases.
- Liveweights (LW) and liveweight gains (LWG) over time.
- Pregnancy and lactation status for breeding stock.
Farm Inputs
- Annual quantities of fertilisers used (e.g., urea, single superphosphate), including the nitrogen content.
- Records of fuel and electricity consumption (e.g., diesel and petrol usage in litres per year, electricity bills).
- Purchased feed, such as grain, hay, and cottonseed, with quantities and usage split across livestock types.
Crop and Pasture Management
- Total area under cultivation and pasture.
- Details of crop residue management (e.g., burning or incorporation).
- Soil amendments applied, including lime and manure.
Tree Planting Information
- Area planted (in hectares), tree species, and planting dates for vegetation activities aimed at carbon sequestration.
Year Selection
- Use a representative year that reflects stable flock/herd conditions for accurate baseline results.
- Avoid years strongly influenced by drought or exceptional rainfall.
Supplementary Records
- Evidence of purchases (e.g., tax records for fertilisers, fuel, feed, livestock, herbicides, and pesticides).
- Emission factors for external services, such as contractors for hay baling.
Savannah Burning (if applicable to northern Australian properties)
- Rainfall data, vegetation class, patchiness, fuel class size, fire season, years since last fire, and fire scar area.
Tips for Accuracy
- Data Verification: Cross-check livestock numbers with outputs like liveweight and wool sold.
- Representative Data: Average results over 2-3 years if significant variations occur in seasonal conditions.
Additional Tools
For detailed guidance, refer to the online resources:
- GAF Tools: University of Melbourne GAF Tools.
These records will ensure that your carbon account is as accurate and representative as possible.