Benefits of managing pastures to reduce sheep methane emissions
Carbon benefits with an approved methodology do not exist.
Co-benefit from managing pastures to decrease methane production is that pasture productivity usually increases.
Opportunities in managing pastures for methane reduction:
- It is relevant to all sheep enterprises, excluding the pastoral zone where legumes fail to persist.
- There is a potential for alternative legumes to increase profit and reduce emissions.
- Methane emissions could be reduced as much as 25% in pure legume pastures compared to pure grass pastures.
Risks of managing pastures to reduce sheep methane emissions
- There is no approved methodology for this activity.
- There are no accurate techniques for measuring feed intake and methane emissions from livestock in commercial grazing situations.
- The additionality test will determine if this activity is eligible for carbon credits.
- There is unpredictable variation in methane emissions between animals and across differing environments.
- Carbon price is highly variable.
- Pasture composition varies widely between seasons, and maintaining a high legume content may be difficult in some seasonal sequences.