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Research article2023Peer reviewedOpen access

Large-scale deployment of grass in crop rotations as a multifunctional climate mitigation strategy

Englund, Oskar; Mola-Yudego, Blas; Borjesson, Pal; Cederberg, Christel; Dimitriou, Ioannis; Scarlat, Nicolae; Berndes, Goran


The agriculture sector can contribute to climate change mitigation by reducing its own greenhouse gas (GHG) emissions, sequestering carbon in vegetation and soils, and providing biomass to substitute for fossil fuels and other GHG-intensive products. The sector also needs to address water, soil, and biodiversity impacts caused by historic and current practices. Emerging EU policies create incentives for cultivation of perennial plants that provide biomass along with environmental benefits. One such option, common in northern Europe, is to include grass in rotations with annual crops to provide biomass while remediating soil organic carbon (SOC) losses and other environmental impacts. Here, we apply a spatially explicit model on >81,000 sub-watersheds in EU27 + UK (Europe) to explore the effects of widespread deployment of such systems. Based on current accumulated SOC losses in individual sub-watersheds, the model identifies and quantifies suitable areas for increased grass cultivation and corresponding biomass- and protein supply, SOC sequestration, and reductions in nitrogen emissions to water as well as wind and water erosion. The model also provides information about possible flood mitigation. The results indicate a substantial climate mitigation potential, with combined annual GHG savings from soil-carbon sequestration and displacement of natural gas with biogas from grass-based biorefineries, equivalent to 13%-48% of current GHG emissions from agriculture in Europe. The environmental co-benefits are also notable, in some cases exceeding the estimated mitigation needs. Yield increases for annual crops in modified rotations mitigate the displacement effect of increasing grass cultivation. If the grass is used as feedstock in lieu of annual crops, the displacement effect can even be negative, that is, a reduced need for annual crop production elsewhere. Incentivizing widespread deployment will require supportive policy measures as well as new uses of grass biomass, for example, as feedstock for green biorefineries producing protein concentrate, biofuels, and other bio-based products.


agriculture; climate mitigation; environmental benefits; environmental impacts; Europe; grass; land use; perennial crops; soil carbon; spatial modelling

Published in

GCB Bioenergy
2023, Volume: 15, number: 2, pages: 166-184
Publisher: WILEY

      SLU Authors

    • Sustainable Development Goals

      Ensure access to affordable, reliable, sustainable and modern energy for all
      Protect, restore and promote sustainable use of terrestrial ecosystems, sustainably manage forests, combat desertification, and halt and reverse land degradation and halt biodiversity loss
      Take urgent action to combat climate change and its impacts

      UKÄ Subject classification

      Renewable Bioenergy Research
      Agricultural Science

      Publication identifier


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