United States Department of Agriculture
Natural Resources Conservation Service		 Soil Quality Institute Go to Accessibility Information
Skip to Page Content





Soil Biology

Clipart from the Soil Biology Primer

To download an image, right click on the image and select "Save Picture As".

Soil food web. Click to go to larger version.Soil food web, with words - Click thumbnail to see larger version

Soil food web without words. Click to go to larger version.Soil food web, without words - Click thumbnail to see larger version

Bacteria, gray.     Bacteria, green.  Bacteria

Fungi, shaded.    Fungi, b&w. Fungi

 Amoeba

Nematode, light.    Nematode, dark. Nematodes

Mite, gray    Mite, orange Mites

Earthworm Earthworm

Plant residue Plant residue

Mole Mole

Bird Bird

Grass with roots Grass with roots

Sun. Click to go to larger version.Sun - Click thumbnail to view larger version

Soil cycleSoil cycle