Abstract
In radioecology, transfer of radionuclides from soil to plants is typically described by a concentration ratio (CR), which assumes linearity of transfer with soil concentration. Nonlinear uptake is evidenced in many studies, but it is unclear how it should be taken into account in radioecological modeling. In this study, a conventional CR-based linear model, a nonlinear model derived from observed uptake into plants, and a new simple model based on the observation that nonlinear uptake leads to a practically constant concentration in plant tissues are compared. The three models were used to predict transfer of 234U, 59Ni and 210Pb into spruce needles. The predictions of the nonlinear and the new model were essentially similar. In contrast, plant radionuclide concentration was underestimated by the linear model when the total element concentration in soil was relatively low, but within the range commonly observed in nature. It is concluded that the linear modeling could easily be replaced by a new approach that more realistically reflects the true processes involved in the uptake of elements into plants. The new modeling approach does not increase the complexity of modeling in comparison with CR-based linear models, and data needed for model parameters (element concentrations) are widely available.
Similar content being viewed by others
References
Calmon P, Thiry Y, Zibold G, Rantavaara A, Fesenko S (2009) Transfer parameter values in temperate forest ecosystem: a review. J Environ Radioact 100:757–766
Cook CM, Sgardelis SP, Pantis JD, Lanaras T (1994) Concentrations of Pb, Zn and Cu in Taraxacum ssp. in relation to urban pollution. Bull Environ Contam Toxicol 53:204–210
Ehlken S, Kirchner G (2002) Environmental processes affecting plant root uptake of radioactive trace elements and variability of transfer factor data: a review. J Environ Radioact 58:97–112
Han FX, Su Y, Monts DL, Waggoner CA, Plodinec MJ (2006) Binding, distribution, and plant uptake of mercury in a soil from Oak Ridge, Tennessee, USA. Sci Total Environ 368:753–768
Higley KA, Bytwerk DP (2007) Generic approach to transfer. J Environ Radioact 98:4–23
Howard BJ, Beresford NA, Copplestone D, Telleria D, Pröhl G, Fesenko S, Jeffree RA, Yankovich TL, Brown JE, Higley K, Johansen MP, Mulye H, Vandenhove H, Gashchak S, Wood MD, Takata H, Andersson P, Dale P, Ryan J, Bollhöfer A, Doering C, Barnett CL, Wells C (2013) The IAEA handbook of radionuclide transfer to wildlife. J Environ Radioact 121:55–74
IAEA (International Atomic Energy Agency) (2014) Handbook of parameter values for the prediction of radionuclide transfer to wildlife. IAEA Technical Report Series No. 479. International Atomic Energy Agency, Vienna
IAEA (International Atomic Energy Agency) (2010) Handbook of parameter values for the prediction of radionuclide transfer in terrestrial and freshwater environments. Technical Report Series No. 472. International Atomic Energy Agency, Vienna
Jones SR, Patton D, Coppelstone D, Norris S, O’Sullivan P (2003) Generic performance assessment for a deep repository for low and intermediate level waste in the UK—a case study in assessing radiological impacts on the natural environment. J Environ Radiact 66(1–2):89–119
Kabata-Pendias A (2011) Trace elements in soils and plants, 4th edn. CRC Press, Boca Raton, p 520
Koch-Steindl H, Pröhl G (2001) Considerations on the behaviour of long-lived radionuclides in soil. Radiat Environ Biophys 40:93–104
Krauss M, Wilcke W, Kobza J, Zech W (2002) Predicting heavy metal transfer from soil to plant: potential use of Freundlich-type function. J Plant Nutr Soil Sci 165:3–8
Langmuir I (1918) The adsorption of gases on plane surfaces of glass, mica and platinum. J Am Chem Soc 40(9):1361–1403. doi:10.1021/ja02242a004
Marschner H (1995) Mineral nutrition of higher plants, 2nd edn. Academic Press Limited, London
Martínez-Aguirre A, García-Orellana I, García-León M (1997) Transfer of natural radionuclides from soils to plants in a marsh enhanced by the operation of non-nuclear industries. J Environ Radioact 35:149–171
McGee EJ, Johanson KJ, Keatinge MJ, Synnott HJ, Colgan PA (1996) An evaluation of ratio systems in radioecological studies. Health Phys 70:215–221
Morton LS, Evans CV, Estes GO (2002) Natural uranium and thorium distributions in podzolized soils and native blueberry. J Environ Qual 31:155–162
Palm V (1994) A model for sorption, flux and plant uptake of cadmium in a soil profile: model structure and sensitivity analysis. Water Air Soil Poll 77:169–190
Palmer C, Guerinot ML (2009) A question of balance: facing the challenges of Cu, Fe and Zn homeostasis. Nat Chem Biol 5(5):333–340
Redjala T, Sterckeman T, Skiker S, Echevarria G (2010) Contribution of apoplast and symplast to short term nickel uptake by maize and Leptpplax emarginata roots. Environ Exp Bot 68:99–106
Reimann C, Koller F, Frengstad B, Kashulina G, Niskavaara H, Englmeier P (2001) Comparison of the elements composition in several plant species and their substrate from a 1,50,000-km2 area in Northern Europe. Sci Total Environ 278:87–112
Rodríguez PB, Tome FV, Lozano JC, Fernández MAP (2010) Transfer of 238U, 230Th, 226Ra, and 210Pb from soils to tree and shrub species in a Mediterranean area. Appl Radiat Isot 68:1154–1159
Rodríquez PB, Tomé FV, Lozano JC (2002) About the assumption of linearity in soil-to-plant transfer factors for uranium and thorium isotopes and 226Ra. Sci Total Environ 284:167–175
Roivainen P, Makkonen S, Holopainen T, Juutilainen J (2011a) Soil-to-plant transfer of uranium and its distribution between plant parts in four boreal species. Boreal Environ Res 16:158–166
Roivainen P, Makkonen S, Holopainen T, Juutilainen J (2011b) Transfer of elements relevant to radioactive waste from soil to five boreal plant species. Chemosphere 83:385–390
Salbu B, Lind OC, Skipperud L (2004) Radionuclide speciation and its relevance in environmental impact assessments. J Environ Radioact 74:233–242
Salminen R, Gregorauskiené V (2000) Considerations regarding the definition of a geochemical baseline of elements in the surficial materials in areas differing in basic ecology. Appl Geochem 15:647–653
Salminen R (ed) (2005) Geochemical Atlas of Europe. Part I: Background information, methodology and maps. Espoo: Geological Survey of Finland. http://www.gtk.fi/publ/foregsatlas. Last visited in 8 July 2015
Sheppard SC, Evenden WG (1992) Bioavailability indices for uranium: effect of concentration in eleven soils. Arch Environ Contam Toxicol 23:117–124
Sheppard MI, Sheppard SC (1985) The plant concentration ratio concept as applied to natural U. Health Phys 48:494–500
Sheppard SC, Sheppard MI, Ilin M, Thompson P (2005) Soil-to-plant transfer of uranium series radionuclides in natural and contaminated settings. Radioprotect 40:253–259
Simon SL, Ibrahim SA (1987) The plant/soil concentration ratio for calcium, radium, lead and polonium: evidence for non-linearity with reference to substrate concentration. J Environ Radioact 5:123–142
Timberley MH, Brooks RP, Peterson PJ (1970) The significance of essential and non-essential trance elements in plants relation to biochemical prospecting. J Appl Ecol 7:429–439
Tuovinen TS, Roivainen P, Makkonen S, Kolehmainen M, Holopainen T, Juutilainen J (2011) Soil-to-plant transfer of elements is not linear: results for five elements relevant to radioactive waste in five boreal forest species. Sci Total Environ 410:191–197
Tuovinen TS, Saengkul C, Ylipieti J, Solatie D, Juutilainen J (2013) Transfer of 137Cs from water to fish is not linear in two northern lakes. Hydrobiol 700:131–139
Vera Tomé F, Rodríguez MPB, Lozano JC (2003) Soil-to-plant transfer factors for natural radionuclides and stable elements in a Mediterranean area. J Environ Radioact 65:161–175
Yaylah-Abanuz G, Tüysüz N (2009) Heavy metal contaminations of soils and tea plants in the eastern Black sea region, NE Turkey. Environ Earth Sci 59:131–144
Acknowledgments
This study was funded by a grant from the Finnish Research Programme on Nuclear Waste Management (KYT2014 programme).
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of interest
All authors declare that they have no conflicts of interest.
Human and animal rights
This article does not contain any studies with human participants or vertebrate animals performed by any of the authors.
Rights and permissions
About this article
Cite this article
Tuovinen, T.S., Kolehmainen, M., Roivainen, P. et al. Nonlinear transfer of elements from soil to plants: impact on radioecological modeling. Radiat Environ Biophys 55, 393–400 (2016). https://doi.org/10.1007/s00411-016-0655-4
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00411-016-0655-4