Blog
About

  • Record: found
  • Abstract: not found
  • Article: not found

Exploring the benefits of growing bioenergy crops to activate lead-contaminated agricultural land: a case study on sweet potatoes

Read this article at

ScienceOpenPublisher
Bookmark
      There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

      Related collections

      Most cited references 15

      • Record: found
      • Abstract: not found
      • Article: not found

      Sequential extraction procedure for the speciation of particulate trace metals

        Bookmark
        • Record: found
        • Abstract: not found
        • Article: not found

        Accumulators and excluders ‐strategies in the response of plants to heavy metals

         A Baker (2008)
          Bookmark
          • Record: found
          • Abstract: found
          • Article: not found

          The use of bio-energy crops (Zea mays) for 'phytoattenuation' of heavy metals on moderately contaminated soils: a field experiment.

          Worldwide there are numerous regions where conventional agriculture is affected by the presence of elevated amounts of plant-available trace elements, causing economic losses and food and feed quality and safety. The Belgian and Dutch Campine regions are a first-class example, with approximately 700 km(2) diffusely contaminated by historic atmospheric deposition of Cd, Zn and Pb. Primary land use in this region is agriculture, which is frequently confronted with crops exceeding the European standards for heavy metal contents in food and feed-stuffs. Phytoremediation as a soil remediation technology only appears feasible if the produced biomass might be valorised in some manner. In the current case, we propose the use of energy maize aiming at risk-reduction and generation of an alternative income for agriculture, yet in the long run also a gradual reduction of the pollution levels. Since the remediation aspect is demoted to a secondary objective with sustainable risk-based land use as first objective, we introduce the term 'phytoattenuation': this is in analogy with 'natural attenuation' of organic pollutants in soils where also no direct intended remediation measures but a risk-based management approach is implemented. In the current field experiment, cultivation of energy maize could result in 33,000-46,000 kW h of renewable energy (electrical and thermal) per hectare per year which by substitution of fossil energy would imply a reduction of up to 21 x 10(3)kg ha(-1) y(-1) CO(2) if used to substitute a coal fed power plant. Metal removal is very low for Cd and Pb but more significant for Zn with an annual reduction of 0.4-0.7 mgkg(-1) in the top soil layer.
            Bookmark

            Author and article information

            Journal
            Environmental Monitoring and Assessment
            Environ Monit Assess
            Springer Nature
            0167-6369
            1573-2959
            March 2015
            February 26 2015
            March 2015
            : 187
            : 3
            10.1007/s10661-014-4247-y
            © 2015
            Product

            Comments

            Comment on this article