Table 1 Crosswalk used to facilitate ecosystem diversity analysis of ponderosa pine bunchgrass forests and the comparison of historic, current, and future conditions.

A, J

Grass seedling sapling COMBINED WITH uncharacteristic grassland

=

Recently burned, all corresponding herb and shrub types³

n/a

F

Seedling and sapling >10 % tree cover

=

Ponderosa pine

AND

Seed and sap (all cover classes)

B

Ponderosa pine young forest, <30 % cover

=

Ponderosa pine

AND

Small-open

C

Ponderosa pine mid-age forest, <30 % cover

=

Ponderosa pine

AND

Med-open

D, E

Ponderosa pine mature/old forest with regeneration, <30 % cover

=

Ponderosa pine

AND

Very large-open

Contemporary landscapes only…

G

Ponderosa pine young forest, >30 % cover

=

Ponderosa pine

AND

Small-closed

H

Ponderosa pine mid-age forest, >30 % cover

=

Ponderosa pine

AND

Med-closed

I

Ponderosa pine mature/old forest with regeneration, >30 % cover

=

Ponderosa pine

AND

Very large-closed