2. Basic components

Organic components

Visible constituents in soil thin sections can be subdivided into various types, in accordance with their size and complexity:

Coarse fragments

Organ residues

Tissue residues

Organic fine material

Cells and cell residues

Amorphous organic fine material

Punctuations

Organic pigment

Coarse fragments

Organ residues. Units containing more than one type of tissue; normally they conserve the organ's outline.

Key to organic materialsl