The biogeochemical controls on metal behaviour in aqueous environments involve complex
linkages of biological, principally bacterially driven, and geochemical processes, which …

Agroecosystems are domesticated ecosystems intermediate between natural ecosystems
and fabricated ecosystems, and occupy nearly one-third of the land areas of the earth …

A Donnan-type model for nonspecific binding of electrolyte ions has been combined with the
non-ideal competitive adsorption (NICA) model for specific binding to produce a model for …

In the last decade, application of modern degradative and nondegradative analysis
techniques to both lignin of living plants and humic substances of soil has demonstrated …

Humic Substances color all waters more or less brown. Their concentrations exceed all
carbon of living organisms by at least one order of magnitude. Opposite to former …

A Donnan model in combination with a site-binding model is applied to interpret proton
binding to humic substances as a function of pH at different salt levels. The Donnan model …

With the newly developed NICCA-Donnan model, we estimate the activity of toxic metal ions
from simple measurements like total metal concentration and organic matter content. The …

This chapter emphasizes on the significance of aluminum-organic interactions in soils, the
distribution of naturally occurring organic ligands that bind aluminum, and the nature and …

To gain further insight into the macromolecular behaviour of humic substances we treated a
humic material with simple organic compounds and followed the change in molecular size …

Two different humic materials, one from a forest soil and the other from wormcasts, were
used to study the influence of mineral and organic acids on the conformational properties of …