Climate regulation, energy provisioning and water purification: Quantifying ecosystem service delivery of bioenergy willow grown on riparian buffer zones using life cycle assessment

Research output: Contribution to journalArticle

Abstract

Whilst life cycle assessment (LCA) boundaries are expanded to account for negative indirect consequences of bioenergy such as indirect land use change (ILUC), ecosystem services such as water purification sometimes delivered by perennial bioenergy crops are typically neglected in LCA studies. Consequential LCA was applied to evaluate the significance of nutrient interception and retention on the environmental balance of unfertilised energy willow planted on 50-m riparian buffer strips and drainage filtration zones in the Skåne region of Sweden. Excluding possible ILUC effects and considering oil heat substitution, strategically planted filter willow can achieve net global warming potential (GWP) and eutrophication potential (EP) savings of up to 11.9 Mg CO2e and 47 kg PO4e ha−1 year−1, respectively, compared with a GWP saving of 14.8 Mg CO2e ha−1 year−1 and an EP increase of 7 kg PO4e ha−1 year−1 for fertilised willow. Planting willow on appropriate buffer and filter zones throughout Skåne could avoid 626 Mg year−1 PO4e nutrient loading to waters.

Details

Authors
Organisations
External organisations
  • Bangor University
  • University of Bath
  • Laval University
  • Swedish University of Agricultural Sciences
  • Johann Heinrich von Thünen Institute
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Environmental Sciences
  • Energy Systems

Keywords

  • Agriculture, Bioenergy, Environment, Eutrophication, Greenhouse gas emissions, LCA
Original languageEnglish
Pages (from-to)872-884
Number of pages13
JournalAmbio
Volume45
Issue number8
Publication statusPublished - 2016 Dec 1
Publication categoryResearch
Peer-reviewedYes