Themes > Science > Earth Sciences > Geology > Soils > About Soils, Generalities > The Soil Makers > The Fundamental Decomposers

Bacteria
, 6 to 10 million per cm2 , or 3 500 kg per acre 
Fungi,
1 to 2 km of hyphae per cm2
up to and more than 1000 species in a woodland,
about 90% of all material produced by plants is broken down by decomposers


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