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Soil Formation
- 1 Rock mechanically weathered
- Forms small soil grains
- Forms small soil grains
- 2 Chemical Weathering
- Releases important nutrients from the rock
- Releases important nutrients from the rock
- 3 Seeds blown onto soil and enrich it upon death
- Lichens and Mosses can grow on young soils
- Lichens and Mosses can grow on young soils
- 4 Micro-organisms decompose plant remains
- This forms humus and further enriches the soil
- Humus helps the soil grains to bind together
- Humus helps the soil grains to bind together
- This forms humus and further enriches the soil
- 5 Repeat until maxiumum fertility is reached
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