Global Research Alliance on Agricultural Greenhouse Gases
New Zealand is a member of the Global Research Alliance on agricultural greenhouse gas emissions.
What is the Global Research Alliance?
The Mission of the Global Research Alliance on Agricultural Greenhouse Gases (GRA) is to bring countries together to find ways to grow more food without growing greenhouse gas emissions. It was launched in December 2009.
How is New Zealand involved in the GRA?
New Zealand is a founding member, the current GRA Secretariat, is one of the Co-Chairs of the Livestock Research Group, and was GRA Council Chair (2011-2012).
The New Zealand Government committed $45 million to the work of the GRA in 2010 and in 2016 announced a further 20 million out to June 2020 to fund research in the area of greenhouse gas emissions mitigation in pasture based temporal livestock systems.
New Zealand is represented in the GRA by the Ministry for Primary Industries (MPI), working closely with the environment and climate change groups from the Ministry of Foreign Affairs and Trade (MFAT) and the Ministry for the Environment (MfE). MPI contracts the NZAGRC to manage New Zealand’s involvement in the Livestock Research Group and New Zealand’s GRA science research activities.
What is the GRA Livestock Research Group?
The Livestock Research Group (LRG) is focused on reducing the emissions intensity of livestock production systems and increasing the quantity of carbon stored in soils supporting those systems.
The LRG is co-chaired by NZAGRC Director Dr Harry Clark and Dr Sinead Waters from Teagasc Ireland.
The LRG Vision is to:
- Increase agriculture production with lower emissions
- Improve global cooperation in research & technology
- Work with farmers and partners to provide knowledge
Read below for details on the workings of the LRG and GRA.
For more information on the group check out the December 2018 LRG newsletter at: https://globalresearchalliance.org/n/livestock-research-group-newsletter-december-2018/
Mitigating nitrous oxide and manure-derived methane emissions by removing cows in response to wet soil conditions
T.J. van der Weerden, S. Laurenson, I. Vogeler, P.C. Beukes, S.M. Thomas, R.M. Rees, C.F.E. Topp, G. Lanigan, C.A.M. de Klein, Mitigating nitrous oxide and manure-derived methane emissions by removing cows in response to wet soil conditions, Agricultural Systems, Volume 156, September 2017, Pages 126-138, ISSN 0308-521X, https://doi.org/10.1016/j.agsy.2017.06.010.
• Grazing pastures when soils are wet increases N2O emissions from cow urine
• Duration controlled grazing (DCG) was applied when a soil ϴv threshold was reached.
• Different durations were assessed for farms on poorly and imperfectly drained soils.
• For poorly drained soils, DCG reduced N2O and manure-derived CH4 emissions.
• For imperfectly drained soils, DCG increased N2O and manure-derived CH4 emissions.
Read the article in full (external link)
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