SOILS

SOILS

1. It is an essential natural resource for life on the planet

   • provides the necessary elements for the growth of plants and serves as food for animals and humans
   • It is the upper layer of the earth's surface
     • living organisms
     • water
     • air
     • matter, water
     • minerals
   • finite and valuable natural resource

2. soil quality

   • sustains life and the ecological and productive functions of the earth.
     • environment conducive to the growth and reproduction of plants and animals.
   • is characterized by a combination of factors
     • physical
     • chemical
     • biological

3. Evolution

   • of the following phases of evolution occurred the formation of soils
     • 1.in ancient times the soil was considered as a medium for agriculture and food production.
     • 2.in the middle ages the land was related to property and political power
     • 3.In the 19th century the concept of soil was developed by the chemist Justus Von
     • 5. XX century the concept of soil is broadened to include the water and nutrient cycle
     • 6. They were conceived as independent natural bodies, each with a unique morphology
     • 7. resulting from a particular combination of climate, living organisms, bedrock, relief and age
     • 4. At the end of the 19th century, beginning of the 20th, pedology and soil sciences were developed
   • and the following types of soil are formed
     • sandy or light soils
     • clayey or heavy soils
     • silty soils

4. degradation

   • is a process that occurs when soil quality and health decline
     • due to various human activities and natural factors
       • Soil compaction
       • Soil contamination
       • Soil salinization
       • Soil erosion
       • Soil acidification
   • can have serious consequences for the environment and food safety.
     • Therefore, it is important to adopt practices in a sustainable way for the benefit of current and future generations.

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