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Water Use and Water-Use Efficiency of Three Perennial Bioenergy Grass Crops in Florida

Author

Listed:
  • John E. Erickson

    () (Agronomy Department, University of Florida, Gainesville, FL 32611, USA)

  • Arkorn Soikaew

    () (School of Natural Resources and Environment, University of Florida, Gainesville, FL 32611, USA)

  • Lynn E. Sollenberger

    () (Agronomy Department, University of Florida, Gainesville, FL 32611, USA)

  • Jerry M. Bennett

    () (Agronomy Department, University of Florida, Gainesville, FL 32611, USA)

Abstract

Over two-thirds of human water withdrawals are estimated to be used for agricultural production, which is expected to increase as demand for renewable liquid fuels from agricultural crops intensifies. Despite the potential implications of bioenergy crop production on water resources, few data are available on water use of perennial bioenergy grass crops. Therefore, the objective of this study was to compare dry matter yield, water use, and water-use efficiency (WUE) of elephantgrass, energycane, and giant reed, grown under field conditions for two growing seasons in North Central Florida. Using scaled sap flow sensor data, water use ranged from about 850 to 1150 mm during the growing season, and was generally greater for giant reed and less for elephantgrass. Despite similar or greater water use by giant reed, dry biomass yields of 35 to 40 Mg ha −1 were significantly greater for energycane and elephantgrass, resulting in greater WUE. Overall, water use by the bioenergy crops was greater than the rainfall received during the study, indicating that irrigation will be needed in the region to achieve optimal yields. Species differ in water use and WUE and species selection can play an important role with regard to potential consequences for water resources.

Suggested Citation

  • John E. Erickson & Arkorn Soikaew & Lynn E. Sollenberger & Jerry M. Bennett, 2012. "Water Use and Water-Use Efficiency of Three Perennial Bioenergy Grass Crops in Florida," Agriculture, MDPI, Open Access Journal, vol. 2(4), pages 1-14, October.
  • Handle: RePEc:gam:jagris:v:2:y:2012:i:4:p:325-338:d:20782
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    References listed on IDEAS

    as
    1. World Bank & Food and Agriculture Organization & International Fund for Agricultural Development, 2009. "Gender in Agriculture Sourcebook
      [Agricultura y desarrollo rural : manual sobre género en agricultura]
      ," World Bank Publications, The World Bank, number 6603.
    2. Balat, Mustafa & Balat, Havva, 2009. "Recent trends in global production and utilization of bio-ethanol fuel," Applied Energy, Elsevier, pages 2273-2282.
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    Citations

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    Cited by:

    1. Laurent, A. & Pelzer, E. & Loyce, C. & Makowski, D., 2015. "Ranking yields of energy crops: A meta-analysis using direct and indirect comparisons," Renewable and Sustainable Energy Reviews, Elsevier, vol. 46(C), pages 41-50.

    More about this item

    Keywords

    biomass crops; biofuels; sustainability; water use; transpiration; gas exchange; sap flow; elephantgrass; energycane; giant reed;

    JEL classification:

    • Q1 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Agriculture
    • Q10 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Agriculture - - - General
    • Q11 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Agriculture - - - Aggregate Supply and Demand Analysis; Prices
    • Q12 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Agriculture - - - Micro Analysis of Farm Firms, Farm Households, and Farm Input Markets
    • Q13 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Agriculture - - - Agricultural Markets and Marketing; Cooperatives; Agribusiness
    • Q14 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Agriculture - - - Agricultural Finance
    • Q15 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Agriculture - - - Land Ownership and Tenure; Land Reform; Land Use; Irrigation; Agriculture and Environment
    • Q16 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Agriculture - - - R&D; Agricultural Technology; Biofuels; Agricultural Extension Services
    • Q17 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Agriculture - - - Agriculture in International Trade
    • Q18 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Agriculture - - - Agricultural Policy; Food Policy

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