Ecological Classification System Levels

SECTION
Sections (Figure 8) are subdivisions of Provinces with similar characteristics such as: 
 

                                             Figure 8

Figure 9 shows a very generalized  map of soil materials that are a result of glacial or other land forming processes; this map, along with vegetation, was used to delineate sections in Minnesota.

                                            Figure 9

Figure 10 is a map of elevation (shaded relief) that helps depict how the section boundaries relate to surficial geology.

                                            Figure 10

The patterns of original vegetation of Minnesota (Figure 11),
pre-settlement wetlands (Figure 12), and hydrography (Figure 13) were all influenced by surficial geology and are consequently stratified to varying degrees by section boundaries.

                                                      Figure 11

                                           Figure 12

                                            Figure 13

                                         go to 'Subsection level'