Basic Milestones in the Evolution of Biosphere and Soil Formation
The process of the formation of contemporary biosphere was directed to consistent settling the biota throughout all the terrestrial spheres, i.e. hydrosphere, atmosphere, lithosphere. The appearance of a definite form of soil formation corresponded to each stage: the underwater form for hydrozemic stage, the swampy form for atmozemic stage, the land form for lithozemic stage. The soil, its composition and properties corresponded to the level of the evolutional development of the biota and promoted the involvement of new potential habitats into the biospheric cycle.