422 Post oak-shortleaf pine/bluestem-Indiangrass savanna Arkansas Valley prairie and woodland vegetation occurs in Arkansas and Oklahoma. It is dominated by tall grasses with or without an open to more dense woodland canopy of shortleaf pine, post oak (or other oaks such as black, blackjack or white oaks). Fire suppression leads to an increase in oak and pine cover and allows other woody species to colonize the prairies. This fuelbed represents a savanna structure with a sparse tree canopy over the dominant tallgrass prairie species. 220,230,250 5 228,252 18 2 2

Base fuelbed LF_420 for EVT 2415. Added sparse tree overstory, removed shrub stratum and altered nonwoody composition. Changes based on EVT and NatureServe alliance descriptions. Sep 20, 2011 25 25 20 5 10 5 19422 50 183335 50 75 4 1.5 70 40462 25 40913 20 42102 25 530264 20 41645 10 5 3 0.05 95 33352 30 36611 30 36223 40 90 1 1 15.0 85.0