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The potential effectiveness of four different options to reduce environmental impacts of grazed pastures. A model-based assessment

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  • Giltrap, Donna L.
  • Kirschbaum, Miko U.F.
  • Liáng, Lìyǐn L.

Abstract

Pastoral agriculture can have negative environmental impacts. These include greenhouse gas emissions (such as enteric CH4 and soil N2O emissions), NH3 volatilisation, and leaching of nitrogen into waterways. We used a modelling approach to assess the effect of three plant traits and one management practice on N2O emissions, nitrogen (N) losses via leaching and NH3 volatilisation, pasture production and soil organic carbon (SOC) changes (as applicable). The aim was to identify traits/management practices that could potentially be environmentally beneficial and could then inform future research to find or breed plants with those traits.

Suggested Citation

  • Giltrap, Donna L. & Kirschbaum, Miko U.F. & Liáng, Lìyǐn L., 2021. "The potential effectiveness of four different options to reduce environmental impacts of grazed pastures. A model-based assessment," Agricultural Systems, Elsevier, vol. 186(C).
    • Handle: RePEc:eee:agisys:v:186:y:2021:i:c:s0308521x20308210
    DOI: 10.1016/j.agsy.2020.102960
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    References listed on IDEAS

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    1. Powlson, D.S. & Gregory, P.J. & Whalley, W.R. & Quinton, J.N. & Hopkins, D.W. & Whitmore, A.P. & Hirsch, P.R. & Goulding, K.W.T., 2011. "Soil management in relation to sustainable agriculture and ecosystem services," Food Policy, Elsevier, vol. 36(Supplemen), pages 72-87, January.
    2. Powlson, D.S. & Gregory, P.J. & Whalley, W.R. & Quinton, J.N. & Hopkins, D.W. & Whitmore, A.P. & Hirsch, P.R. & Goulding, K.W.T., 2011. "Soil management in relation to sustainable agriculture and ecosystem services," Food Policy, Elsevier, vol. 36(S1), pages 72-87.
    3. Horne, D.J. & Scotter, D.R., 2016. "The available water holding capacity of soils under pasture," Agricultural Water Management, Elsevier, vol. 177(C), pages 165-171.
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