Nitrous Oxide

Current research programme

The current focus of the NZAGRC’s nitrous oxide (N2O) research programme is on measuring the effects pasture plants and pasture plant communities have on nitrous oxide emissions.

This work is closely aligned to the MBIE P21 and Forages for Nitrate Leaching programmes (FRNL). In addition, an investigative project on a technology to locate and treat urine patches was completed in 2015/16.

Learn more about:

Principal investigators

Dr Cecile de Klein, AgResearch
Professor Hong Di, Lincoln University

Research Stories

Why do we need to measure?

Agriculture produces greenhouse gas emissions in a number of ways: direct emissions by livestock, emissions from the production of livestock feed, energy use in fertiliser manufacture, farm operations such as milking, refrigeration and housing, and food storage and transport.

Globally, direct emissions from livestock and feed production make up about 80% of total agriculture emissions. This percentage is even higher in New Zealand (97%) because of the dominance of the livestock sector. Most of our animals spend all their time outside grazing on pasture. This poses a stiff challenge for the measurement, quantification and mitigation of agricultural greenhouse gas emissions. New Zealand has invested significantly in the search for cost effective measures to reduce agricultural greenhouse gas emissions, and this has required New Zealand scientists to develop best practice techniques for quantifying these emissions.

Why we need to measure

There are five key reasons why measurement matters for New Zealand agriculture:

  1. To understand trends and identify how much agriculture contributes to greenhouse gas emissions relative to other sectors both nationally and internationally
  2. To develop effective ways to reduce agricultural greenhouse gas emissions, e.g. identifying naturally low methane
    emitting animals for breeding programmes
  3. To find out whether actions intended to reduce greenhouse gas emissions are effective when they are applied in practice
  4. To meet international obligations to monitor progress against commitments under the United Nations Framework Convention on Climate Change (UNFCCC) and subsequent agreements
  5. To enable companies to monitor and report on their greenhouse gas footprint.

Read more about methane measurement

Read more about nitrous oxide measurement

Read more about reducing aricultural greenhouse gas emissions research

Read more about New Zealand's greenhouse gas emissions profile


Back to News

Members