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Changes in the Rhizosphere of Metal-Accumulating Plants Evidenced by Chemical Extractants

D. Hammer* and C. Keller

Swiss Federal Institute of Technology Lausanne, IATE-Pédologie, 1015 Lausanne, Switzerland



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  		Fig. 1. Uptake of heavy metals (HM) by Salix viminalis and Thlaspi caerulescens from the calcareous (Soil 1) and acidic (Soil 2) soils.

 


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  		Fig. 2. Partitioning of Cd, Cu, and Zn in the calcareous and acidic soils before and after Salix viminalis and Thlaspi caerulescens growth. Pool 2 was not extracted in the acidic soil because carbonates were not found in this soil. Pool 1, exchangeable (NaNO3); Pool 2, carbonate (HOAc); Pool 3, organic matter (Na4P2O7); Pool 4, manganese oxides (NH2OH x HCl); Pool 5, iron oxides (NH2OH x HCl and HOAc); Pool 6, residual (HNO3, HF, and HClO4). The symbol * indicates a difference from the control at the 0.05 probability level.

 




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The SCI Journals Agronomy Journal Crop Science
Journal of Natural Resources
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Soil Science Society of America Journal Journal of Plant Registrations The Plant Genome
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