ABSTRACT
In the preceding chapters, we revisited the interaction of ions with soil components, mainly minerals, and humic substances. As it should be apparent, there are a high number of studies on sorption of ions to soil components, and in many aspects, it is a eld fairly well known. All these are laboratory studies, under well-controlled conditions. Now, the question arising is, How do we apply all these results to a natural soil, where the components are interacting between themselves, and the conditions are changing due to climate, human, and animal activity? There is no easy answer to this question, and in fact, nowadays, we are rather far away from satisfactory results in this respect. In this chapter, we will try to reect the state-ofthe-art response to this problem.
