The soil: formation

The soil: formation

1. Edafology

   • In charge of the integer study of the soil; science between biology and geology.

2. Ecology

   • Considers the soil and its abiotic factors as actors over the living organisms.
   • Defines inside the global ecosystem as a particular one.

3. Soil

   • Superficial cape of the earth crust where the vegetables roots are developed.
   • Characteristics: internal atmosphere, especially water regime, certain flora and fauna and mineral elements
   • Factors involved in soil formation.
     • climate, topography, biological activity, the lithological composition and action time of them all
       • Organic matter
         • Given by the animal and plant colonizers of the inorganic substrate
       • Climate
         • Determines the volume of rainfall
       • Topography
         • Facilitates the water infiltration into the soil
         • Degree of erosion and orientation relative to the sun
       • Biological activity
         • Promotes physical disintegration of bedrock
         • Involved in the chemical weathering by humic acids
       • Lithological composition
         • Determines which products of alteration are caused by weathering
         • It influences the acidity of soil
       • Bedrock is the contribution of mineral elements when its disintegration and decomposition occurs
     • Process of formation and development is called edafogénesis

4. Naomi Rosales Flores. A01066645