SOIL BIOGENESIS

Abstract

The work focuses on the dynamics of soil under the action of living beings in the tropical landscape. First, we present the biodiversity of all organisms that affect the soil and then highlight the impacts of the main agents of the soil biogenesis based on the importance of population densities, the biomass involved and the transforming actions of the environment (bioturbation): earthworms, termites, ants and plant roots are the main actors. Special emphasis is given to the biogenesis of Oxisols and spatial organization of stone-lines by the action of termites and ants. Subsequently, we report briefly the relationship between the biodiversity and the renewal of the soil. Closing the subject, a Goethean’s phenomenological synthesis is established to define the biodynamic functioning of the tropical landscape: the polarity association “versus” dissociation as a vital global phenomenon involving the action of water and of living beings on the mineral kingdom, in surface and depth.