N. S. Bolan, D. C. Adriano, A. Kunhikrishnan, T. James, R. Mcdowell et al., Dissolved Organic Matter, Adv. Agron, vol.110, pp.1-75, 2011.
DOI : 10.1016/B978-0-12-385531-2.00001-3

M. N. Bravin, L. Marti, A. Clairotte, M. Hinsinger, and P. , Rhizosphere alkalisation ??? a major driver of copper bioavailability over a broad pH range in an acidic, copper-contaminated soil, Plant and Soil, vol.41, issue.1-2, pp.257-268, 2009.
DOI : 10.1007/s11104-008-9835-6

M. N. Bravin, P. Tentscher, J. Rose, and P. Hinsinger, Rhizosphere pH Gradient Controls Copper Availability in a Strongly Acidic Soil, Environmental Science & Technology, vol.43, issue.15, pp.5686-5691, 2009.
DOI : 10.1021/es900055k

M. N. Bravin, A. M. Michaud, B. Larabi, and P. Hinsinger, RHIZOtest: A plant-based biotest to account for rhizosphere processes when assessing copper bioavailability, Environmental Pollution, vol.158, issue.10, pp.3330-3337, 2010.
DOI : 10.1016/j.envpol.2010.07.029

I. Cattani, G. Fragoulis, R. Boccelli, and E. Capri, Copper bioavailability in the rhizosphere of maize (Zea mays L.) grown in two Italian soils, Chemosphere, vol.64, issue.11, pp.1972-1979, 2006.
DOI : 10.1016/j.chemosphere.2006.01.007

V. Chaignon and P. Hinsinger, A Biotest for Evaluating Copper Bioavailability to Plants in a Contaminated Soil, Journal of Environment Quality, vol.32, issue.3, pp.824-833, 2003.
DOI : 10.2134/jeq2003.8240

V. Chaignon, M. Quesnoit, and P. Hinsinger, Copper availability and bioavailability are controlled by rhizosphere pH in rape grown in an acidic Cu-contaminated soil, Environmental Pollution, vol.157, issue.12, pp.3363-3369, 2009.
DOI : 10.1016/j.envpol.2009.06.032

J. Y. Cornu, S. Staunton, and P. Hinsinger, Copper concentration in plants and in the rhizosphere as influenced by the iron status of tomato (Lycopersicon esculentum L.), Plant and Soil, vol.35, issue.1-2, pp.63-77, 2007.
DOI : 10.1007/s11104-007-9202-z

F. Degryse, E. Smolders, and R. Merckx, Labile Cd Complexes Increase Cd Availability to Plants, Environmental Science & Technology, vol.40, issue.3, pp.830-836, 2006.
DOI : 10.1021/es050894t

F. Degryse, E. Smolders, and D. R. Parker, Metal complexes increase uptake of Zn and Cu by plants: implications for uptake and deficiency studies in chelator-buffered solutions, Plant and Soil, vol.35, issue.1-2, pp.171-185, 2006.
DOI : 10.1007/s11104-006-9121-4

F. Degryse, V. K. Verma, and E. Smolders, Mobilization of Cu and Zn by root exudates of dicotyledonous plants in resin-buffered solutions and in soil, Plant and Soil, vol.67, issue.1-2, pp.69-84, 2008.
DOI : 10.1007/s11104-007-9449-4

F. Degryse, E. Smolders, H. Zhang, and W. Davison, Predicting availability of mineral elements to plants with the DGT technique: a review of experimental data and interpretation by modelling, Environmental Chemistry, vol.6, issue.3, pp.198-218, 2009.
DOI : 10.1071/EN09010

J. Dessureault-rompré, J. Luster, R. Schulin, M. Tercier-waeber, and B. Nowack, Decrease of labile Zn and Cd in the rhizosphere of hyperaccumulating Thlaspi caerulescens with time, Environmental Pollution, vol.158, issue.5, pp.1955-1962, 2010.
DOI : 10.1016/j.envpol.2009.10.032

J. Feldmann, P. Salaü-n, and E. Lombi, Critical review perspective: elemental speciation analysis methods in environmental chemistry - moving towards methodological integration, Environmental Chemistry, vol.6, issue.4, pp.275-289, 2009.
DOI : 10.1071/EN09018

J. Harmsen, Measuring Bioavailability: From a Scientific Approach to Standard Methods, Journal of Environment Quality, vol.36, issue.5, pp.1420-1428, 2007.
DOI : 10.2134/jeq2006.0492

P. Hinsinger, A. G. Bengough, D. Vetterlein, and I. M. Young, Rhizosphere: biophysics, biogeochemistry and ecological relevance, Plant and Soil, vol.21, issue.156, pp.117-152, 2009.
DOI : 10.1007/s11104-008-9885-9

J. J. Jeffery and N. C. Uren, Copper and zinc species in the soil solution and the effects of soil pH, Australian Journal of Soil Research, vol.21, issue.4, pp.479-488, 1983.
DOI : 10.1071/SR9830479

D. L. Jones, C. Nguyen, and R. D. Finlay, Carbon flow in the rhizosphere: carbon trading at the soil???root interface, Plant and Soil, vol.213, issue.1-2, pp.5-33, 2009.
DOI : 10.1007/s11104-009-9925-0

E. J. Kalis, E. J. Temminghoff, R. M. Town, E. R. Unsworth, and W. H. Van-riemsdijk, Relationship between Metal Speciation in Soil Solution and Metal Adsorption at the Root Surface of Ryegrass, Journal of Environment Quality, vol.37, issue.6, pp.2221-2231, 2008.
DOI : 10.2134/jeq2007.0543

M. Khalid, N. Soleman, and D. L. Jones, Grassland plants affect dissolved organic carbon and nitrogen dynamics in soil, Soil Biology and Biochemistry, vol.39, issue.1, pp.378-381, 2007.
DOI : 10.1016/j.soilbio.2006.07.007

K. Kim, G. Owens, R. Naidu, and S. Kwon, Influence of plant roots on rhizosphere soil solution composition of long-term contaminated soils, Geoderma, vol.155, issue.1-2, pp.86-92, 2010.
DOI : 10.1016/j.geoderma.2009.11.028

L. V. Kochian, O. A. Hoekenga, and M. A. Pineros, HOW DO CROP PLANTS TOLERATE ACID SOILS? MECHANISMS OF ALUMINUM TOLERANCE AND PHOSPHOROUS EFFICIENCY, Annual Review of Plant Biology, vol.55, issue.1, pp.459-493, 2004.
DOI : 10.1146/annurev.arplant.55.031903.141655

Y. Louis, P. Cmuk, D. Omanovic, C. Garnier, V. Lenoble et al., Speciation of trace metals in natural waters: The influence of an adsorbed layer of natural organic matter (NOM) on voltammetric behaviour of copper, Analytica Chimica Acta, vol.606, issue.1, pp.37-44, 2008.
DOI : 10.1016/j.aca.2007.11.011
URL : https://hal.archives-ouvertes.fr/hal-00752706

Y. B. Ma, E. Lombi, I. W. Oliver, A. L. Nolan, and M. J. Mclaughlin, Long-Term Aging of Copper Added to Soils, Environmental Science & Technology, vol.40, issue.20, pp.6310-6317, 2006.
DOI : 10.1021/es060306r

M. B. Mcbride, Reactions Controlling Heavy Metal Solubility in Soils, Adv. Soil Sci, vol.10, pp.1-56, 1989.
DOI : 10.1007/978-1-4613-8847-0_1

M. Mench, J. L. Morel, and A. Guckert, Metal binding properties of high molecular weight soluble exudates from maize (Zea mays L.) roots, Biology and Fertility of Soils, vol.123, issue.3, pp.165-169, 1987.
DOI : 10.1007/BF00255778

A. M. Michaud, M. N. Bravin, M. Galleguillos, and P. Hinsinger, Copper uptake and phytotoxicity as assessed in situ for durum wheat (Triticum turgidum durum L.) cultivated in Cu-contaminated, former vineyard soils, Plant and Soil, vol.25, issue.1-2, pp.99-111, 2007.
DOI : 10.1007/s11104-007-9343-0

M. M. Minnich and M. B. Mcbride, Copper Activity in Soil Solution: I. Measurement by Ion-selective Electrode and Donnan Dialysis1, Soil Science Society of America Journal, vol.51, issue.3, pp.568-572, 1987.
DOI : 10.2136/sssaj1987.03615995005100030003x

J. L. Morel, M. Mench, and A. Guckert, Measurement of Pb2+, Cu2+ and Cd2+ binding with mucilage exudates from maize (Zea mays L.) roots, Biology and Fertility of Soils, vol.123, issue.1, pp.29-34, 1986.
DOI : 10.1007/BF00638958

R. Nicolau, Y. Louis, D. Omanovic, C. Garnier, S. Mounier et al., Study of interactions of concentrated marine dissolved organic matter with copper and zinc by pseudopolarography, Analytica Chimica Acta, vol.618, issue.1, pp.35-42, 2008.
DOI : 10.1016/j.aca.2008.04.038
URL : https://hal.archives-ouvertes.fr/hal-00752705

I. W. Oliver, Y. Ma, E. Lombi, A. L. Nolan, and M. J. Mclaughlin, Values, Environmental Science & Technology, vol.40, issue.10, pp.3342-3348, 2006.
DOI : 10.1021/es051845j

D. L. Parkhurst and C. A. Appelo, User's guide to PHREEQC (version 2) ? a computer program for speciation, batch-reaction, one-dimensional transport, and inverse geochemical calculations, Water-Resources Investigations, pp.99-4259, 1999.

A. Piccolo, P. Conte, R. Spaccini, and M. Chiarella, Effects of some dicarboxylic acids on the association of dissolved humic substances, Biol. Fertil. Soils, vol.37, pp.255-259, 2003.

J. Rachou, C. Gagnon, and S. Sauvé, Use of an ion-selective electrode for free copper measurements in low salinity and low ionic strength matrices, Environmental Chemistry, vol.4, issue.2, pp.90-97, 2007.
DOI : 10.1071/EN06036

C. J. Ritsema, Estimation of activity coefficients of individual ions in solutions with ionic strengths up to 0.3 mol dm???3, Journal of Soil Science, vol.48, issue.2, pp.307-315, 1993.
DOI : 10.1111/j.1365-2389.1993.tb00454.x

S. Sauvé, W. Hendershot, and H. E. Allen, Solid-Solution Partitioning of Metals in Contaminated Soils:?? Dependence on pH, Total Metal Burden, and Organic Matter, Environmental Science & Technology, vol.34, issue.7, pp.1125-1131, 2000.
DOI : 10.1021/es9907764

E. Tipping, Humic ion-binding model VI: an improved description of the interactions of protons and metal ions with humic substances, Aquatic Geochemistry, vol.4, issue.1, pp.3-48, 1998.
DOI : 10.1023/A:1009627214459

E. Tipping, J. Rieuwerts, G. Pan, M. R. Ashmore, S. Lofts et al., The solid???solution partitioning of heavy metals (Cu, Zn, Cd, Pb) in upland soils of England and Wales, upland soils of England and Wales, pp.213-225, 2003.
DOI : 10.1016/S0269-7491(03)00058-7

H. P. Van-leeuwen, R. M. Town, J. Buffle, R. F. Cleven, W. Davison et al., Dynamic Speciation Analysis and Bioavailability of Metals in Aquatic Systems, Environmental Science & Technology, vol.39, issue.22, pp.8545-8556, 2005.
DOI : 10.1021/es050404x

R. Vulkan, F. J. Zhao, V. Barbosa-jefferson, S. Preston, G. I. Paton et al., Copper Speciation and Impacts on Bacterial Biosensors in the Pore Water of Copper-Contaminated Soils, Environmental Science & Technology, vol.34, issue.24, pp.5115-5121, 2000.
DOI : 10.1021/es0000910

X. Wang, X. Chen, S. Liu, and X. Ge, Effect of molecular weight of dissolved organic matter on toxicity and bioavailability of copper to lettuce, Journal of Environmental Sciences, vol.22, issue.12, pp.1960-1965, 2010.
DOI : 10.1016/S1001-0742(09)60346-6

L. P. Weng, E. J. Temminghoff, S. Lofts, E. Tipping, and W. H. Van-riemsdijk, Complexation with Dissolved Organic Matter and Solubility Control of Heavy Metals in a Sandy Soil, Environmental Science & Technology, vol.36, issue.22, pp.4804-4810, 2002.
DOI : 10.1021/es0200084

H. Zhang and W. Davison, Performance Characteristics of Diffusion Gradients in Thin Films for the in Situ Measurement of Trace Metals in Aqueous Solution, Analytical Chemistry, vol.67, issue.19, pp.3391-3400, 1995.
DOI : 10.1021/ac00115a005

H. Zhang, F. J. Zhao, B. Sun, W. Davison, and S. P. Mcgrath, A New Method to Measure Effective Soil Solution Concentration Predicts Copper Availability to Plants, Environmental Science & Technology, vol.35, issue.12, pp.2602-2607, 2001.
DOI : 10.1021/es000268q

L. Y. Zhao, R. Schulin, and B. Nowack, The Effects of Plants on the Mobilization of Cu and Zn in Soil Columns, Environmental Science & Technology, vol.41, issue.8, pp.2770-2775, 2007.
DOI : 10.1021/es062032d

L. Y. Zhao, R. Schulin, L. Weng, and B. Nowack, Coupled mobilization of dissolved organic matter and metals (Cu and Zn) in soil columns, Geochimica et Cosmochimica Acta, vol.71, issue.14, pp.3407-3418, 2007.
DOI : 10.1016/j.gca.2007.04.020

L. Zhou and J. W. Wong, Effect of Dissolved Organic Matter from Sludge and Sludge Compost on Soil Copper Sorption, Journal of Environment Quality, vol.30, issue.3, pp.878-883, 2001.
DOI : 10.2134/jeq2001.303878x