What is soil?
- Highly complex assemblage of:
- geological materials,
- dead organic matter,
- living roots,
- animals and microbes,
- soil water
- soil atmosphere.
- They form a dynamic system in which the line between living and dead frequently becomes academic.
Videos for Soil
Quick Soil facts:
| Soil Facts https://www.soilassociation.org/ |
| Healthy soils have six different layers . |
| It is estimated that more than half of all earth species live in the soil! |
| One gram of soil (a quarter of a tablespoon) can harbour up to 10 billion organisms – that’s more than the number of people living on the planet! |
| Only about 1% of the microorganisms found in soil have been identified so far |
| 95% of food production relies on the soil |
| Soils store more carbon than the atmosphere, and all of the world’s plants and forests combined. |
| Earthworms are a real hero of healthy soils – Earthworms do amazing work in soils! Their activity offers many benefits, from increased nutrient availability and better drainage, to creating a more stable soil structure. |
| Every minute we lose the equivalent of 30 football pitches of fertile soil. |
| Organic farms have 20% more organic matter in their soil on average. |
Below is presentation which gives more details about soil.