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  • Reed canarygrass (Phalaris arundinacea) outperforms Miscanthus or willow on marginal soils, brownfield and non-agricultural sites for local, sustainable energy crop production.

    Author(s) : Lord, R. A.

    Author Affiliation : Department of Civil and Environmental Engineering, University of Strathclyde, James Weir Building, Glasgow G1 1XJ, UK.

    Author Email : Richard.lord@strath.ac.uk

    Journal article : Biomass and Bioenergy 2015 Vol.78 pp.110-125 ref.95

    Abstract : Growing biomass on non-agricultural land could potentially deliver renewable energy services without displacing land from food production, avoiding the social and environmental conflicts associated with bioenergy. A variety of derelict underutilized and neglected land types are possible candidates, sharing a number of challenges for agronomy, including contaminants in soils, potential uptake and dispersion through energy use. Most previous field trials have grown woody biomass species during phytoremediation. Five one-hectare brownfield sites in NE England, were each amended with c.500 t ha-1 of green-waste compost, planted with short-rotation coppice willow, Miscanthus, reed canarygrass and switchgrass, 1 and then harvested for 3-5 years. Critical issues for the economic and environmental viability of energy production on brownfield land were investigated: The yields achieved on non-agricultural land; the potential for fuel contamination; the suitability for use and potential markets for any biomass produced. RCG appears best suited to the challenging soil conditions found on non-agricultural land, outperforming other species in ease of establishment, cost, time to maturity, yield and contamination levels. Invasive spreading and low melting ash compositions were not observed. Annual yields of 4-7 odt ha-1 from the second growth season were found consistently across a range of previously-developed, capped or former landfill sites, with a gross annual energy yield of 97 GJ ha-1 at contamination levels acceptable for domestic pellets. The analogy with marginal agricultural land suggests that this species and approach could help boost biomass production while avoiding the natural capital "nexus" related to global food-fuel-land-water limits.

    ISSN : 0961-9534

    DOI : 10.1016/j.biombioe.2015.04.015

    URL : http://www.sciencedirect.com/science/...

    Record Number : 20153237729

    Publisher : Elsevier Ltd

    Location of publication : Oxford

    Country of publication : UK

    Language of text : English

    Language of summary : English

    Indexing terms for this abstract:

    Organism descriptor(s) : Miscanthus, Phalaris arundinacea, Salix

    Descriptor(s) : bioenergy, biofuels, biomass, biomass production, composts, coppice, crop production, crops, economic viability, fuel crops, harvesting, renewable energy, short rotation forestry, soil amendments

    Identifier(s) : Britain, energy crops, United Kingdom

    Geographical Location(s) : England, UK

    Broader term(s) : Poaceae, Poales, commelinids, monocotyledons, angiosperms, Spermatophyta, plants, eukaryotes, Phalaris, Salicaceae, Malpighiales, eudicots, Great Britain, UK, British Isles, Western Europe, Europe, Commonwealth of Nations, Developed Countries, European Union Countries, OECD Countries