Dirt is Good :)

Remember this slogan by Omo? or was it Sunlight? Okay… by Unilever? Much as I don’t enjoy soil science much, thanks to an interesting experience a few years ago, here are some facts proving that dirt/soil (will use them interchangeably) is not just good but amazing.

  1. soillayersMost soil has 6 layers. It’s also known as the ‘Soil Profile’.
  2. Soil consists of 50% water and air. The other 50% is made up of broken rock and minerals from decaying flora and fauna.
  3. It takes 500 years to produce just under an inch of topsoil, this is the most productive layer of soil.
  4. The amount of sand, clay and silt is what gives different soil types their various textures. Most soils are a mix of all three as can be seen in the image below:
    soil-type
  5. There are more microorganisms in a handful of soil than the world population. For example, there are approximately 5,000 different types of bacteria in just one gram of soil.
  6.  Soil acts as a sink/ storage /sequestrator  of approximately 10% of the world’s carbon dioxide emissions.
  7. It stores approximately 0.01% of the Earth’s total water.
  8. Soil acts as a pollutant filter for underground water
    and finally,
  9. About 1.4 Million earthworms can be found in an acre of cropland. WOW. 1.4 Million! o_O. They enrich the topsoil by feeding on organic material and converting it into nutrients. They also make soil more absorbent and aerated.

    Isn’t dirt great?

    Read more about soil here, here, here and here.

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