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Pedogenic factors and measurements of the plant uptake of cobalt

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Abstract

Understanding the factors which affect plant uptake of cobalt (Co) across a range of soil types is essential for both continued agricultural productivity as well as for possible remediation of contaminated sites. This review examines the relevant pedogenic processes contributing to plant uptake of Co from soils based on a critical evaluation of existing numerical data. Numerous pedogenic factors have been put forward in the scientific literature to account for the plant uptake of Co, including total, extractable and isotopically exchangeable soil Co concentrations, pH and other soil chemical parameters (e.g. manganese concentrations), microbial variations as well as anthropogenic inputs. Despite there being certain instances where significant correlations occur between these parameters and plant uptake of Co, an examination of multiple data sets shows that these relationships are spatially isolated. With the measureable parameters showing only weak correlations at best, there should be a degree of scepticism regarding the interpretation of reported data sets. Newly evolving techniques which assess kinetically-bioavailable in-situ soil concentrations, such as diffusive gradient thin-films, offer the potential to better address plant Co uptake across a range of soil types.

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  1. UNSW Water Research Centre, School of Civil and Environmental Engineering, The University of New South Wales, Sydney, NSW, 2052, Australia

    Richard N. Collins & Andrew S. Kinsela

  2. Institute for Environmental Research, Australian Nuclear Science and Technology Organisation, Locked Bag 2001, Kirrawee DC, NSW, 2232, Australia

    Richard N. Collins

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Collins, R.N., Kinsela, A.S. Pedogenic factors and measurements of the plant uptake of cobalt. Plant Soil 339, 499–512 (2011). https://doi.org/10.1007/s11104-010-0584-y

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