Department of Earth Sciences, University of Bristol
Prof. D.M. Sherman
Lecture 6: Chemistry of Soils
The soil environment is the interface between the hydrosphere, lithosphere, biosphere and atmosphere. Soils buffer the surface inputs into groundwater, act as a source/sink of atmospheric CO2 and regulate the availability of nutrients to terrestrial ecosystems.
You should be able to outline:
the controls on soil pH and the consequences of soil acidification.
the chemical state and controls on major soil nutrients (K, P and N).
the controls on the solubility and bioavailability of heavy metal contaminants.