we must protect our life support!!!!!!

The soil is the outer layer of the earth's crust characterized by the presence of many living beings. 

It is the product of the interaction between rock, air, water and living things. The formation of a soil is a long process: it takes 1 000 to 100 000 years according to the conditions to form a soil meter. So it is a non-renewable resource on a human scale. But today the soil is threatened by several degradation processes.

The main soil degradation processes are:

• ·         Soil compaction
• ·         Water erosion of soil
• ·          Wind erosion of soil
• ·         Soil salinization
• ·         The urbanization of agricultural land
• ·         Chemical pollution of soil
• ·         Hydromorphy
• ·         Soil depletion

All these forms of degradation lead to performance loss and loss of soil fertility.

Hence the need to conserve and manage soil sustainably.