may be to diminish trace element mobility so that it poses minimum risk to the .... Although a small percentage of a soil's clay fraction carries a permanent ... Metal complexation by organic matter can promote or reduce metal solubility, depending ... Dissolved organic matter has been demonstrated to promote heavy-metal ...
Mobility, and 6 Solubility, Bioaccumulation of Trace Elements: Abiotic Processes in the Rhizosphere Brett Robinson, Nanthi Bolan, Santiago Mahimairaja, and Brent Clothier CONTENTS 6.1 6.2 6.3 6.4 6.5 6.6 6.7
Introduction.............................................................................................................................93 Trace Element Solubility in the Rhizosphere ........................................................................94 Trace Element Speciation in the Rhizosphere.......................................................................97 Trace Element Mobility..........................................................................................................98 Bioaccumulation of Trace Elements ......................................................................................98 Bioaccumulation as Affected by phi......................................................................................99 Engineering Trace Element Solubility, Mobility, and Bioaccumulation for Improved Fertility or Environmental Protection..................................................................100 6.8 Trace Element Solubilization ...............................................................................................100 6.9 Induced Bioaccumulation.....................................................................................................100 6.10 In Situ Immobilization .........................................................................................................101 6.11 Conclusions...........................................................................................................................104 References ......................................................................................................................................104
6.1 INTRODUCTION Trace elements are elements that are present in small concentrations (
