Metal mobilization from soils by phytosiderophores - experiment and equilibrium modeling.

ABSTRACT:

Aims

To test if multi-surface models can provide a soil-specific prediction of metal mobilization by phytosiderophores (PS) based on the characteristics of individual soils.

Methods

Mechanistic multi-surface chemical equilibrium modeling was applied for obtaining soil-specific predictions of metal and PS speciation upon interaction of the PS 2'-deoxymugineic acid (DMA) with 6 soils differing in availability of Fe and other metals. Results from multi-surface modeling were compared with empirical data from soil interaction experiments.

Results

For soils in which equilibrium was reached during the interaction experiment, multi-surface models could well predict PS equilibrium speciation. However, in uncontaminated calcareous soils, equilibrium was not reached within a wee

SUBMITTER: Schenkeveld WD 

PROVIDER: S-EPMC4372826 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature